Advanced Powder Technology最新文献_第3页

Dual role of redox-active V2O5/CeO2 nanocomposite electrodes in high-performance supercapacitor and battery applications 氧化还原活性V2O5/CeO2纳米复合电极在高性能超级电容器和电池中的双重作用

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-02-01 Epub Date: 2026-01-23 DOI: 10.1016/j.apt.2026.105185

K. Sutharthani, S.S. Pradeepa, R. Suba Devi, M. Sivakumar

Electrochemical attributes of transition metal oxide hybrids are an active domain of research for energy storage applications. This study strives to explore the plausible performance of V₂O₅/CeO₂ nanocomposite in supercapacitor applications and their anode capabilities in Lithium-ion batteries (LIBs). Egg albumin is tapped as a bioreactor solvent for CeO₂ synthesis. Microstructural analysis confirmed the successful integration of CeO₂ into the V₂O₅ matrix, exhibiting a BET surface area of 32 m² g⁻¹ and excellent elemental homogeneity. Owing to their intriguing redox properties, the conjunction of V⁵⁺ and Ce⁴⁺ redox duos refines the diffusivity, thereby resulting in optimum performance in both applications. The discharge capacity of the V₂O₅/CeO₂ nanocomposite was quantified as 1146.57 mAh g⁻¹ at a current density of 0.1 A g⁻¹. After 100 cycles at 1 A g⁻¹, it retained 235.76 mAh g⁻¹, exhibiting an 82.8 % capacity retention. As a supercapacitor electrode, it demonstrated a specific capacitance of 1173.05 F g⁻¹ at 1 A g⁻¹. The cyclic stability of the nanocomposite was verified over 5000 cycles with capacity retention of 97.4 %. The cumulative dissection of the V₂O₅/CeO₂ nanocomposite showcased its strong potential in electrochemical applications.

过渡金属氧化物杂化材料的电化学性质是储能领域研究的热点。本研究旨在探索V2O5/CeO2纳米复合材料在超级电容器中的合理性能及其在锂离子电池（LIBs）中的负极性能。利用鸡蛋白蛋白作为生物反应器溶剂进行CeO2合成。显微结构分析证实CeO2成功地整合到V2O5基体中，表现出32 m2 g−1的BET表面积和良好的元素均匀性。由于其有趣的氧化还原特性，V5+和Ce4+氧化还原基团的结合改善了扩散率，从而在两种应用中都获得了最佳性能。在0.1 a g−1电流密度下，V2O5/CeO2纳米复合材料的放电容量为1146.57 mAh g−1。在1 A g−1下循环100次后，它保留了235.76 mAh g−1，容量保留率为82.8%。作为超级电容器电极，它在1ag−1时的比电容为1173.05 F g−1。经过5000次循环验证，纳米复合材料的容量保持率为97.4%。V2O5/CeO2纳米复合材料的累积解剖表明其具有很强的电化学应用潜力。

{"title":"Dual role of redox-active V2O5/CeO2 nanocomposite electrodes in high-performance supercapacitor and battery applications","authors":"K. Sutharthani, S.S. Pradeepa, R. Suba Devi, M. Sivakumar","doi":"10.1016/j.apt.2026.105185","DOIUrl":"10.1016/j.apt.2026.105185","url":null,"abstract":"<div><div>Electrochemical attributes of transition metal oxide hybrids are an active domain of research for energy storage applications. This study strives to explore the plausible performance of V<sub>2</sub>O<sub>5</sub>/CeO<sub>2</sub> nanocomposite in supercapacitor applications and their anode capabilities in Lithium-ion batteries (LIBs). Egg albumin is tapped as a bioreactor solvent for CeO<sub>2</sub> synthesis. Microstructural analysis confirmed the successful integration of CeO<sub>2</sub> into the V<sub>2</sub>O<sub>5</sub> matrix, exhibiting a BET surface area of 32 m<sup>2</sup> g<sup>−1</sup> and excellent elemental homogeneity. Owing to their intriguing redox properties, the conjunction of V<sup>5+</sup> and Ce<sup>4+</sup> redox duos refines the diffusivity, thereby resulting in optimum performance in both applications. The discharge capacity of the V<sub>2</sub>O<sub>5</sub>/CeO<sub>2</sub> nanocomposite was quantified as 1146.57 mAh g<sup>−1</sup> at a current density of 0.1 A g<sup>−1</sup>. After 100 cycles at 1 A g<sup>−1</sup>, it retained 235.76 mAh g<sup>−1</sup>, exhibiting an 82.8 % capacity retention. As a supercapacitor electrode, it demonstrated a specific capacitance of 1173.05 F g<sup>−1</sup> at 1 A g<sup>−1</sup>. The cyclic stability of the nanocomposite was verified over 5000 cycles with capacity retention of 97.4 %. The cumulative dissection of the V<sub>2</sub>O<sub>5</sub>/CeO<sub>2</sub> nanocomposite showcased its strong potential in electrochemical applications.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105185"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146022860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel eccentric-pelletisation for rifampicin agglomerates: Process optimization and high-dose pulmonary delivery 利福平凝聚体的新型偏心颗粒化：工艺优化和大剂量肺给药

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-02-01 Epub Date: 2026-01-19 DOI: 10.1016/j.apt.2026.105178

Jianhui Liu , Hang Zhou , Jiale Chen , Ying Ma , Shuangxi Shao , Honglei Zhang , Xiang Luo , Kaiqi Shi , Chongjiang Cao , Jesse Zhu , Dechun Huang

High-dose inhaled therapy offers a promising approach for respiratory infections, requiring efficient particle engineering. While fine particles from the milling process improved lung deposition, their poor flowability and high cohesion posed significant challenges for handling and dosing. In this study, a novel eccentric-pelletisation machine was developed to transform purely fine rifampicin powders into spherical agglomerates, significantly improving their flowability, dispersibility, and handling properties. Key manufacturing parameters − including relative humidity (60–70%), eccentric speed (240 rpm), eccentric time (20 min), and sieve size (400 µm) − were systematically optimized using an L₉(3⁴) orthogonal design. The optimized rifampicin agglomerates exhibited favorable properties, including bulk density (∼0.35 g/cm³), flow rate (∼0.59 g/s), roundness (∼0.92), yield (∼89.68%), and fine particle fraction/mass (>55%/5 mg), ensuring efficient high-dose delivery. Furthermore, the optimized agglomerates from three batches demonstrated excellent reproducibility of aerodynamic and physical properties. This study highlights the potential of the eccentric-pellestisation machine as a robust and scalable platform for producing inhalable rifampicin formulations, providing a foundation for industrial production and clinical applications for respiratory infections.

高剂量吸入治疗为呼吸道感染提供了一种很有前途的方法，但需要有效的粒子工程。虽然研磨过程中产生的细颗粒改善了肺沉积，但它们的流动性差和高凝聚力给处理和给药带来了重大挑战。在这项研究中，开发了一种新型的偏心制粒机，将纯利福平粉末转化为球形团块，显著提高了它们的流动性、分散性和处理性能。关键的制造参数-包括相对湿度（60-70%），偏心转速（240 rpm），偏心时间（20分钟）和筛尺寸（400µm） -使用L9（34）正交设计进行系统优化。优化后的利福平团聚体具有良好的性能，包括堆积密度（~ 0.35 g/cm3）、流速（~ 0.59 g/s）、圆度（~ 0.92）、收率（~ 89.68%）和细颗粒分数/质量（>55%/ 5mg），确保了高效的高剂量递送。此外，三批优化后的团聚体表现出良好的空气动力学和物理性能的再现性。这项研究强调了离心吸药机作为生产可吸入利福平制剂的强大且可扩展的平台的潜力，为呼吸道感染的工业生产和临床应用提供了基础。

{"title":"Novel eccentric-pelletisation for rifampicin agglomerates: Process optimization and high-dose pulmonary delivery","authors":"Jianhui Liu , Hang Zhou , Jiale Chen , Ying Ma , Shuangxi Shao , Honglei Zhang , Xiang Luo , Kaiqi Shi , Chongjiang Cao , Jesse Zhu , Dechun Huang","doi":"10.1016/j.apt.2026.105178","DOIUrl":"10.1016/j.apt.2026.105178","url":null,"abstract":"<div><div>High-dose inhaled therapy offers a promising approach for respiratory infections, requiring efficient particle engineering. While fine particles from the milling process improved lung deposition, their poor flowability and high cohesion posed significant challenges for handling and dosing. In this study, a novel eccentric-pelletisation machine was developed to transform purely fine rifampicin powders into spherical agglomerates, significantly improving their flowability, dispersibility, and handling properties. Key manufacturing parameters − including relative humidity (60–70%), eccentric speed (240 rpm), eccentric time (20 min), and sieve size (400 µm) − were systematically optimized using an L<sub>9</sub>(3<sup>4</sup>) orthogonal design. The optimized rifampicin agglomerates exhibited favorable properties, including bulk density (∼0.35 g/cm<sup>3</sup>), flow rate (∼0.59 g/s), roundness (∼0.92), yield (∼89.68%), and fine particle fraction/mass (>55%/5 mg), ensuring efficient high-dose delivery. Furthermore, the optimized agglomerates from three batches demonstrated excellent reproducibility of aerodynamic and physical properties. This study highlights the potential of the eccentric-pellestisation machine as a robust and scalable platform for producing inhalable rifampicin formulations, providing a foundation for industrial production and clinical applications for respiratory infections.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105178"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146022864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Measurement and calibration of bonding parameters for a multi-scale DEM model of corn ears: experiment and simulation alignment 玉米穗多尺度DEM模型粘接参数的测量与标定：实验与仿真对准

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-02-01 Epub Date: 2026-01-13 DOI: 10.1016/j.apt.2026.105175

Dandan Han , Tingyi Mo , Yunxia Wang , Chao Tang , Lin Chen , Lijia Xu

An innovative flexible corn ear Discrete Element Method (DEM) model was established to effectively capture hierarchical anatomical properties of the corncob. By embedding kernel apices within the interstitial voids of xylem annulus particles and establishing multi-point adhesive connections, the model facilitates detachable kernel mechanics and corncob fracture dynamics. Experimental quantification yielded circumferential and axial threshing forces of 19.24 N and 28.70 N for four kernels arranged in a 2 × 2 matrix pattern relative to the corncob. These measurements served as benchmark criteria for systematic bonding parameter calibration. Sequential application of optimization tests identified the optimal bonding parameter set governing kernel–corncob interactions. Model validation demonstrated simulated circumferential and axial threshing forces of 19.37 N and 28.83 N, yielding relative errors of 0.68 % and 0.42 %. Implementation of the calibrated ear DEM model for longitudinal axial flow threshing apparatus simulation successfully reproduced dynamic bond failure mechanisms between kernels and corncob, axial kernel distribution patterns within the cylinder, and the inverse correlation between unthreshed rate and cylinder rotational velocity. The developed flexible ear DEM model substantially advances simulation authenticity and accuracy for threshing processes, furnishing a robust computational platform and theoretical basis for investigating low-loss, high-efficiency threshing separation mechanisms.

建立了一种新颖的柔性玉米穗离散元法（DEM）模型，有效地捕捉了玉米穗轴的层次解剖特性。该模型通过将核尖嵌入木质部环颗粒的间隙空隙中，建立多点黏附连接，实现了核可分离力学和玉米芯断裂动力学。实验量化得到4粒玉米相对于玉米芯呈2 × 2矩阵排列时，圆周脱粒力为19.24 N，轴向脱粒力为28.70 N。这些测量结果作为系统键合参数校准的基准标准。优化试验的连续应用确定了控制玉米粒-玉米芯相互作用的最佳键合参数集。模型验证表明，模拟的周向和轴向脱粒力分别为19.37 N和28.83 N，相对误差分别为0.68%和0.42%。在纵向轴流脱粒装置模拟中，利用标定后的穗部DEM模型成功再现了玉米粒与玉米芯之间的动态粘结破坏机制、筒内轴向籽粒分布模式以及脱粒率与筒内转速的负相关关系。所开发的柔性脱粒DEM模型大大提高了脱粒过程仿真的真实性和准确性，为研究低损失、高效率脱粒分离机制提供了强大的计算平台和理论基础。

{"title":"Measurement and calibration of bonding parameters for a multi-scale DEM model of corn ears: experiment and simulation alignment","authors":"Dandan Han , Tingyi Mo , Yunxia Wang , Chao Tang , Lin Chen , Lijia Xu","doi":"10.1016/j.apt.2026.105175","DOIUrl":"10.1016/j.apt.2026.105175","url":null,"abstract":"<div><div>An innovative flexible corn ear Discrete Element Method (DEM) model was established to effectively capture hierarchical anatomical properties of the corncob. By embedding kernel apices within the interstitial voids of xylem annulus particles and establishing multi-point adhesive connections, the model facilitates detachable kernel mechanics and corncob fracture dynamics. Experimental quantification yielded circumferential and axial threshing forces of 19.24 N and 28.70 N for four kernels arranged in a 2 × 2 matrix pattern relative to the corncob. These measurements served as benchmark criteria for systematic bonding parameter calibration. Sequential application of optimization tests identified the optimal bonding parameter set governing kernel–corncob interactions. Model validation demonstrated simulated circumferential and axial threshing forces of 19.37 N and 28.83 N, yielding relative errors of 0.68 % and 0.42 %. Implementation of the calibrated ear DEM model for longitudinal axial flow threshing apparatus simulation successfully reproduced dynamic bond failure mechanisms between kernels and corncob, axial kernel distribution patterns within the cylinder, and the inverse correlation between unthreshed rate and cylinder rotational velocity. The developed flexible ear DEM model substantially advances simulation authenticity and accuracy for threshing processes, furnishing a robust computational platform and theoretical basis for investigating low-loss, high-efficiency threshing separation mechanisms.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105175"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eco-friendly Typha latifolia gold quantum dots with microfluidic-boosted antimicrobial and antioxidant performance 生态友好型Typha latifolia金量子点与微流体增强抗菌和抗氧化性能

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-02-01 Epub Date: 2026-01-17 DOI: 10.1016/j.apt.2025.105161

Kimia Torabi , Fateme Aghamir , Zinab Moradi Alvand , Ghasem Eghlima

This study introduces a sustainable and green approach for synthesizing gold quantum dots (Au QDs) using an ultrasound–assisted method with Typha latifolia leaf extract serving as both the reducing and stabilizing agent. Optimization via Box–Behnken design yielded monodisperse nanoparticles with high crystallinity and a predominantly spherical morphology, exhibiting an average diameter of 6.8 ± 4.7 nm. Spectroscopic and microscopic analyses (XRD, UV–Vis, DLS, FTIR, TEM) confirmed successful formation and surface functionalization of the Au QDs. Antibacterial assessments revealed that the Au QDs achieved complete inhibition of Bacillus subtilis and Escherichia coli at MIC values of 0.20 and 0.40 mg/mL, representing a fold improvement over the crude extract. Integration with a microfluidic platform accelerated bactericidal action, enabling rapid detection of potassium ion leakage (1.57 ± 0.09 ppm for B. subtilis, 1.34 ± 0.06 ppm for E. coli) within 30 min—approximately 50 % faster than conventional assays. Antioxidant performance improved markedly, with DPPH, ABTS, and NO scavenging activities increasing by 28–46 % relative to the extract. Biosafety evaluations using Allium cepa, Artemia urmiana, and MTT assays indicated negligible cytotoxicity and genotoxicity across tested concentrations. Collectively, these results demonstrate that T. latifolia–derived Au QDs possess strong antimicrobial and antioxidant activities, rapid microfluidic–enabled responsiveness, and excellent biosafety, establishing them as promising candidates for translational biomedical and environmental applications.

本文介绍了一种可持续、绿色的超声辅助合成金量子点（Au QDs）的方法，该方法以蓖麻叶提取物为还原剂和稳定剂。通过Box-Behnken设计优化得到了高结晶度的单分散纳米颗粒，其平均直径为6.8±4.7 nm。光谱和微观分析（XRD, UV-Vis， DLS， FTIR， TEM）证实了Au量子点的成功形成和表面功能化。抑菌试验结果表明，在MIC值分别为0.20和0.40 mg/mL时，Au QDs对枯草芽孢杆菌和大肠杆菌具有完全抑制作用，比粗提物提高了1倍。与微流控平台的集成加速了杀菌作用，能够在30分钟内快速检测到钾离子泄漏（枯草芽孢杆菌为1.57±0.09 ppm，大肠杆菌为1.34±0.06 ppm），比常规检测快了约50%。抗氧化性能显著提高，DPPH、ABTS和NO清除活性较提取物提高28 - 46%。使用葱、青蒿和MTT测定的生物安全性评价表明，在不同的测试浓度下，细胞毒性和遗传毒性可以忽略不计。综上所述，这些研究结果表明，金针叶衍生的金量子点具有很强的抗菌和抗氧化活性，快速的微流体响应能力，以及出色的生物安全性，使其成为转化生物医学和环境应用的有希望的候选者。

{"title":"Eco-friendly Typha latifolia gold quantum dots with microfluidic-boosted antimicrobial and antioxidant performance","authors":"Kimia Torabi , Fateme Aghamir , Zinab Moradi Alvand , Ghasem Eghlima","doi":"10.1016/j.apt.2025.105161","DOIUrl":"10.1016/j.apt.2025.105161","url":null,"abstract":"<div><div>This study introduces a sustainable and green approach for synthesizing gold quantum dots (Au QDs) using an ultrasound–assisted method with <em>Typha latifolia</em> leaf extract serving as both the reducing and stabilizing agent. Optimization via Box–Behnken design yielded monodisperse nanoparticles with high crystallinity and a predominantly spherical morphology, exhibiting an average diameter of 6.8 ± 4.7 nm. Spectroscopic and microscopic analyses (XRD, UV–Vis, DLS, FTIR, TEM) confirmed successful formation and surface functionalization of the Au QDs. Antibacterial assessments revealed that the Au QDs achieved complete inhibition of <em>Bacillus subtilis</em> and <em>Escherichia coli</em> at MIC values of 0.20 and 0.40 mg/mL, representing a fold improvement over the crude extract. Integration with a microfluidic platform accelerated bactericidal action, enabling rapid detection of potassium ion leakage (1.57 ± 0.09 ppm for <em>B. subtilis</em>, 1.34 ± 0.06 ppm for <em>E. coli</em>) within 30 min—approximately 50 % faster than conventional assays. Antioxidant performance improved markedly, with DPPH, ABTS, and NO scavenging activities increasing by 28–46 % relative to the extract. Biosafety evaluations using <em>Allium cepa</em>, <em>Artemia urmiana</em>, and MTT assays indicated negligible cytotoxicity and genotoxicity across tested concentrations. Collectively, these results demonstrate that <em>T. latifolia</em>–derived Au QDs possess strong antimicrobial and antioxidant activities, rapid microfluidic–enabled responsiveness, and excellent biosafety, establishing them as promising candidates for translational biomedical and environmental applications.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105161"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146022866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of manufacturing route on powder biomaterial Co–Cr–Mo–W dental implants: microstructural and environmental assessment 制备工艺对粉末生物材料Co-Cr-Mo-W种植体的影响：显微结构和环境评价

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-02-01 Epub Date: 2026-01-28 DOI: 10.1016/j.apt.2026.105186

Deepak Sharma , Sanjeev Kumar , Varun Sharma

Microwave sintering, a form of powder metallurgy, and direct metal laser sintering, an additive manufacturing technique, have enhanced the efficiency and sustainability of processing CoCrMoW alloy powder biomaterials used in dental applications. This work examines the microstructural, mechanical, corrosion, and sustainability performance of CoCrMoW dental implants fabricated through two distinct routes. Dental implants fabricated with the direct rapid tooling route exhibited a fully melted, dense microstructure with smooth surfaces and low porosity (3.02%), which enhanced densification, reduced oxidation, and increased crystallinity. On the other hand, dental implants fabricated through the indirect rapid tooling route showed rougher surfaces and higher porosity (38.19%), as well as higher hardness due to the formation of an amorphous phase and oxide dispersion strengthening. Additionally, they exhibited improved corrosion resistance due to the formation of an effective protective oxide film. The direct rapid tooling route demonstrated a significantly lower potential for global warming (0.34 kg CO₂ eq) and fewer repercussions on ecosystems, human health, and resource depletion compared to indirect rapid tooling (19.53 kg CO₂ eq). This study has demonstrated that the direct rapid tooling approach offers a superior, more efficient, and environmentally responsible route for fabricating CoCrMoW alloy dental implants.

微波烧结是粉末冶金的一种形式，直接金属激光烧结是一种增材制造技术，提高了加工牙科用CoCrMoW合金粉末生物材料的效率和可持续性。本研究考察了通过两种不同途径制备的CoCrMoW牙种植体的显微结构、机械、腐蚀和可持续性性能。采用直接快速加工工艺制备的牙种植体具有完全熔化、致密的微观结构，表面光滑，孔隙率低（3.02%），增强了致密化，减少了氧化，提高了结晶度。另一方面，通过间接快速加工方法制备的种植体表面更粗糙，孔隙率更高（38.19%），由于非晶相的形成和氧化物弥散强化，硬度更高。此外，由于形成有效的氧化保护膜，它们表现出更好的耐腐蚀性。与间接快速加工（19.53 kg CO2当量）相比，直接快速加工路线对全球变暖的潜在影响显著降低（0.34 kg CO2当量），对生态系统、人类健康和资源枯竭的影响也更小。该研究表明，直接快速加工方法为制造CoCrMoW合金牙科种植体提供了一种更优越、更高效、更环保的途径。

{"title":"Effect of manufacturing route on powder biomaterial Co–Cr–Mo–W dental implants: microstructural and environmental assessment","authors":"Deepak Sharma , Sanjeev Kumar , Varun Sharma","doi":"10.1016/j.apt.2026.105186","DOIUrl":"10.1016/j.apt.2026.105186","url":null,"abstract":"<div><div>Microwave sintering, a form of powder metallurgy, and direct metal laser sintering, an additive manufacturing technique, have enhanced the efficiency and sustainability of processing CoCrMoW alloy powder biomaterials used in dental applications. This work examines the microstructural, mechanical, corrosion, and sustainability performance of CoCrMoW dental implants fabricated through two distinct routes. Dental implants fabricated with the direct rapid tooling route exhibited a fully melted, dense microstructure with smooth surfaces and low porosity (3.02%), which enhanced densification, reduced oxidation, and increased crystallinity. On the other hand, dental implants fabricated through the indirect rapid tooling route showed rougher surfaces and higher porosity (38.19%), as well as higher hardness due to the formation of an amorphous phase and oxide dispersion strengthening. Additionally, they exhibited improved corrosion resistance due to the formation of an effective protective oxide film. The direct rapid tooling route demonstrated a significantly lower potential for global warming (0.34 kg CO<sub>2</sub> eq) and fewer repercussions on ecosystems, human health, and resource depletion compared to indirect rapid tooling (19.53 kg CO<sub>2</sub> eq). This study has demonstrated that the direct rapid tooling approach offers a superior, more efficient, and environmentally responsible route for fabricating CoCrMoW alloy dental implants.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105186"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Internal geometry optimization of a vacuum rotary kiln for enhanced low-temperature drying of pharmaceutical solids 真空回转窑的内部几何结构优化，以提高低温干燥药物固体

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-02-01 Epub Date: 2026-01-06 DOI: 10.1016/j.apt.2025.105162

Yuka Fukushima , Toshiki Nakamura , Fumihiko Kato , Shizuki Ohshima , Motoharu Suzuki , Kohei Tahara

Low-temperature drying is a critical step for ensuring the product quality and long-term stability of pharmaceutical solids such as granules and tablets. Vacuum rotary kilns have a wide range of industrial applications and are potentially applicable to the low-temperature drying of pharmaceutical solids. In this study, a vacuum rotary kiln was modified by the utilization of a hot-water circulation unit to improve the heat transfer efficiency and addition of internal structural components to the rotating cylinder to improve the powder flow characteristics. Experiments demonstrated that these components promoted the ideal cascading motion, which increased contact between the granules and heated cylinder wall and improved mixing uniformity throughout the powder bed. Numerical simulations were conducted to visualize particle trajectories and contact areas and quantify mixing indices. Among the internal structural components tested, flights with an axial gradient and high contact frequency with the powder bed as well as metal liners with high porosity enhanced the drying efficiency by reducing the drying time and minimizing localized overheating. These results demonstrate the potential applicability of vacuum rotary kilns to the low-temperature drying process of pharmaceutical solids by optimizing their internal geometry.

低温干燥是保证颗粒、片剂等药用固体产品质量和长期稳定性的关键步骤。真空回转窑具有广泛的工业应用，在医药固体的低温干燥中具有潜在的应用前景。本研究利用热水循环装置对真空回转窑进行了改造，提高了传热效率，并在旋转筒体上增加了内部结构部件，改善了粉体流动特性。实验表明，这些成分促进了理想的级联运动，增加了颗粒与加热圆筒壁的接触，提高了整个粉床的混合均匀性。数值模拟显示了颗粒轨迹和接触面积，量化了混合指数。在测试的内部结构部件中，轴向梯度高接触频率的飞片和高孔隙率的金属衬垫通过缩短干燥时间和减少局部过热来提高干燥效率。这些结果表明，通过优化真空回转窑的内部结构，真空回转窑在制药固体的低温干燥过程中具有潜在的适用性。

{"title":"Internal geometry optimization of a vacuum rotary kiln for enhanced low-temperature drying of pharmaceutical solids","authors":"Yuka Fukushima , Toshiki Nakamura , Fumihiko Kato , Shizuki Ohshima , Motoharu Suzuki , Kohei Tahara","doi":"10.1016/j.apt.2025.105162","DOIUrl":"10.1016/j.apt.2025.105162","url":null,"abstract":"<div><div>Low-temperature drying is a critical step for ensuring the product quality and long-term stability of pharmaceutical solids such as granules and tablets. Vacuum rotary kilns have a wide range of industrial applications and are potentially applicable to the low-temperature drying of pharmaceutical solids. In this study, a vacuum rotary kiln was modified by the utilization of a hot-water circulation unit to improve the heat transfer efficiency and addition of internal structural components to the rotating cylinder to improve the powder flow characteristics. Experiments demonstrated that these components promoted the ideal cascading motion, which increased contact between the granules and heated cylinder wall and improved mixing uniformity throughout the powder bed. Numerical simulations were conducted to visualize particle trajectories and contact areas and quantify mixing indices. Among the internal structural components tested, flights with an axial gradient and high contact frequency with the powder bed as well as metal liners with high porosity enhanced the drying efficiency by reducing the drying time and minimizing localized overheating. These results demonstrate the potential applicability of vacuum rotary kilns to the low-temperature drying process of pharmaceutical solids by optimizing their internal geometry.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105162"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145922470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Full title (Editorial Board Members) 全称（编委成员）

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-02-01 Epub Date: 2026-02-12 DOI: 10.1016/S0921-8831(26)00033-6

引用次数: 0

PIV validation of the CFD simulation of single-phase velocity field in spiral jet mills 螺旋射流轧机单相速度场CFD模拟的PIV验证

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-02-01 Epub Date: 2026-02-02 DOI: 10.1016/j.apt.2026.105179

Carmine Sabia , Lisa M. Radeke , Giovanni Frigerio , Luca Martinoli , Mathias Ulbricht , Heyko J. Schultz , Maurizio C. Barbato

On-site measurement of fluid velocity fields inside spiral jet mills is a very challenging task and an experimental validation of the CFD single-phase simulations has never been proposed and performed in literature. In this work, a comprehensive comparison between numerical and experimental velocity contours taken by PIV on a spiral jet mill with full optical accessibility is presented to assess the accuracy of the CFD predictions. The velocity is sampled on three planes at different micronization chamber heights and seven angular positions for two relevant operating conditions. A grid sensitivity study is conducted to determine optimal parameters minimizing the difference between numerical and experimental results. The validation revealed that both the qualitative comparison based on the flow contours and the quantitative analysis of the velocity magnitude profiles show very good agreement between CFD and PIV results, especially in the bulk, while minor deviations occur in the external toroidal part of the mill.

螺旋射流轧机内流体速度场的现场测量是一项非常具有挑战性的任务，对CFD单相模拟的实验验证从未在文献中提出和进行过。在这项工作中，全面比较了PIV在具有全光学可及性的螺旋射流轧机上获得的数值和实验速度轮廓，以评估CFD预测的准确性。在三个平面上，在不同的微粉室高度和7个角度位置上，对两种相关操作条件下的速度进行了采样。通过对网格灵敏度的研究，确定最优参数，使数值结果与实验结果之间的差异最小化。验证结果表明，基于流动轮廓的定性比较和速度大小分布的定量分析结果表明，CFD和PIV的结果非常吻合，特别是在整体上，而在磨机的外环面部分存在较小的偏差。

{"title":"PIV validation of the CFD simulation of single-phase velocity field in spiral jet mills","authors":"Carmine Sabia , Lisa M. Radeke , Giovanni Frigerio , Luca Martinoli , Mathias Ulbricht , Heyko J. Schultz , Maurizio C. Barbato","doi":"10.1016/j.apt.2026.105179","DOIUrl":"10.1016/j.apt.2026.105179","url":null,"abstract":"<div><div>On-site measurement of fluid velocity fields inside spiral jet mills is a very challenging task and an experimental validation of the CFD single-phase simulations has never been proposed and performed in literature. In this work, a comprehensive comparison between numerical and experimental velocity contours taken by PIV on a spiral jet mill with full optical accessibility is presented to assess the accuracy of the CFD predictions. The velocity is sampled on three planes at different micronization chamber heights and seven angular positions for two relevant operating conditions. A grid sensitivity study is conducted to determine optimal parameters minimizing the difference between numerical and experimental results. The validation revealed that both the qualitative comparison based on the flow contours and the quantitative analysis of the velocity magnitude profiles show very good agreement between CFD and PIV results, especially in the bulk, while minor deviations occur in the external toroidal part of the mill.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105179"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146184944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CFD-DEM investigation of binary particle flow and wear characteristics in a centrifugal pump 离心泵内二元颗粒流动及磨损特性的CFD-DEM研究

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-02-01 Epub Date: 2026-01-06 DOI: 10.1016/j.apt.2025.105163

Zhenjiang Zhao , Guoliang Wang , Weidong Liang , Weiwei Zhang , Ling Bai , Ling Zhou

Solid-liquid two-phase pumps often handle particles of different sizes, but their distinct motion characteristics limit the reliability of pump operation. In this study, Computational Fluid Dynamics–Discrete Element Method (CFD − DEM) was employed to establish a polydisperse particle system model containing 0.5 mm fine particles and 2.0 mm coarse particles. The particle flow characteristics, dynamic behavior, and wear mechanisms inside the pump were systematically investigated under five different mixing ratios. The reliability of the numerical simulation was verified through high-speed photography experiments and elbow erosion experiments. Particle trajectory analysis reveals distinct dynamic behaviors: coarse particles follow complex paths with long residence times, while fine particles demonstrate strong fluid-following ability but tend to recirculate near the volute tongue. Collision frequency and energy dissipation analysis indicate that coarse particles dominate the dissipation process, with the shear work on the volute surface exceeding that of other components by about one order of magnitude. The wear severity of the components ranks as volute > blades > hub > shroud, and the wear regions show clear spatial migration as the proportion of coarse particles increases. When the coarse particle fraction increases to 2:1, the buffering effect of the particle layer slows the wear rate. The particle size effects and wear mechanisms revealed in this study provide important insights for advancing powder transport technology.

固液两相泵通常处理不同大小的颗粒，但其独特的运动特性限制了泵运行的可靠性。本研究采用计算流体力学-离散元法（CFD - DEM）建立了包含0.5 mm细颗粒和2.0 mm粗颗粒的多分散颗粒系统模型。系统研究了5种不同混合比下泵内颗粒的流动特性、动力学行为和磨损机理。通过高速摄影实验和弯管冲蚀实验验证了数值模拟的可靠性。颗粒轨迹分析显示了不同的动力学行为：粗颗粒路径复杂，停留时间长；细颗粒随流能力强，但在蜗壳舌附近倾向于再循环。碰撞频率和能量耗散分析表明，粗颗粒在耗散过程中占主导地位，其在蜗壳表面的剪切功超过其他部件约一个数量级。各部件的磨损程度依次为蜗壳>；叶片>；轮毂>；叶冠，磨损区域随着粗颗粒比例的增加呈现明显的空间迁移。当粗颗粒分数增加到2:1时，颗粒层的缓冲作用减缓了磨损速率。本研究揭示的颗粒尺寸效应和磨损机制为推进粉末输送技术提供了重要的见解。

{"title":"CFD-DEM investigation of binary particle flow and wear characteristics in a centrifugal pump","authors":"Zhenjiang Zhao , Guoliang Wang , Weidong Liang , Weiwei Zhang , Ling Bai , Ling Zhou","doi":"10.1016/j.apt.2025.105163","DOIUrl":"10.1016/j.apt.2025.105163","url":null,"abstract":"<div><div>Solid-liquid two-phase pumps often handle particles of different sizes, but their distinct motion characteristics limit the reliability of pump operation. In this study, Computational Fluid Dynamics–Discrete Element Method (CFD − DEM) was employed to establish a polydisperse particle system model containing 0.5 mm fine particles and 2.0 mm coarse particles. The particle flow characteristics, dynamic behavior, and wear mechanisms inside the pump were systematically investigated under five different mixing ratios. The reliability of the numerical simulation was verified through high-speed photography experiments and elbow erosion experiments. Particle trajectory analysis reveals distinct dynamic behaviors: coarse particles follow complex paths with long residence times, while fine particles demonstrate strong fluid-following ability but tend to recirculate near the volute tongue. Collision frequency and energy dissipation analysis indicate that coarse particles dominate the dissipation process, with the shear work on the volute surface exceeding that of other components by about one order of magnitude. The wear severity of the components ranks as volute > blades > hub > shroud, and the wear regions show clear spatial migration as the proportion of coarse particles increases. When the coarse particle fraction increases to 2:1, the buffering effect of the particle layer slows the wear rate. The particle size effects and wear mechanisms revealed in this study provide important insights for advancing powder transport technology.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105163"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145922472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hierarchical CuS Nanoflowers enable efficient photo-assisted Cu2+ reversible storage for advanced aqueous copper ion batteries 层次化cu纳米花为先进的水铜离子电池提供了高效的光辅助Cu2+可逆存储

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology

Pub Date : 2026-02-01 Epub Date: 2025-12-30 DOI: 10.1016/j.apt.2025.105160

Fang Chen , Xupeng Zhu , Xuliang Fan , Haibin Liu , Wanting Pan , Xunfu Zhou , Liang Zhan , Xiaosong Zhou , Ya-Hao Wang

Photo-assisted rechargeable battery has emerged as a promising energy storage system owing to its enhanced electrochemical performance under illumination. A key challenge in advancing this system is the development of active electrode material that combine strong photoactivity and highly reversible capacity. Herein, the hierarchical CuS nanoflower (H-CuS-NF) with reversible copper-ion storage and photo-responsive properties is demonstrated as a promising photo-cathode material for aqueous copper ion battery. Compared to the dark condition as well as CuS nanosheet (CuS-NS), the H-CuS-NF cathode delivers a higher discharge capacity of 662.0 mAh/g at 600 mA/g and a superior rate retention of 87.6 % when the current density increases from 600 to 1800 mA/g under illuminated condition. The enhanced performance is attributed to a more robust photo-assisted charge–discharge process, as confirmed by electronic structure analysis and theoretical simulations, which effectively facilitates the CuS-Cu₂S conversion. Furthermore, the photo-assisted H-CuS-NF//Zn hybrid battery exhibits an expanded operating voltage of 1.15 V, exceptional discharge capacity of 694.6 mAh/g, and photo-charging capability of 104.2 mAh/g (after lighting 4 h), showing its significant potential for commercial applications. This work proves the morphology-mediated strategy for fabricating advanced CuS photoelectrode for high-performance photo-assisted rechargeable battery.

光辅助可充电电池因其在光照下电化学性能的提高而成为一种很有前途的储能系统。推进该系统的一个关键挑战是开发结合强光活性和高可逆容量的活性电极材料。本文中，层叠cu纳米花（h - cu - nf）具有可逆的铜离子存储和光响应特性，是一种很有前途的水铜离子电池光阴极材料。在光照条件下，当电流密度从600 mA/g增加到1800 mA/g时，h - cu - nf阴极的放电容量达到662.0 mAh/g，保持率达到87.6%。电子结构分析和理论模拟证实，光辅助充放电过程更加稳健，有效地促进了cu - cu2s的转换。此外，光辅助h - cu - nf //Zn混合电池的扩展工作电压为1.15 V，放电容量为694.6 mAh/g，光充电容量为104.2 mAh/g（照明4 h后），显示出巨大的商业应用潜力。本研究为高性能光辅助可充电电池用先进cu光电极的制备提供了理论依据。

{"title":"Hierarchical CuS Nanoflowers enable efficient photo-assisted Cu2+ reversible storage for advanced aqueous copper ion batteries","authors":"Fang Chen , Xupeng Zhu , Xuliang Fan , Haibin Liu , Wanting Pan , Xunfu Zhou , Liang Zhan , Xiaosong Zhou , Ya-Hao Wang","doi":"10.1016/j.apt.2025.105160","DOIUrl":"10.1016/j.apt.2025.105160","url":null,"abstract":"<div><div>Photo-assisted rechargeable battery has emerged as a promising energy storage system owing to its enhanced electrochemical performance under illumination. A key challenge in advancing this system is the development of active electrode material that combine strong photoactivity and highly reversible capacity. Herein, the hierarchical CuS nanoflower (H-CuS-NF) with reversible copper-ion storage and photo-responsive properties is demonstrated as a promising photo-cathode material for aqueous copper ion battery. Compared to the dark condition as well as CuS nanosheet (CuS-NS), the H-CuS-NF cathode delivers a higher discharge capacity of 662.0 mAh/g at 600 mA/g and a superior rate retention of 87.6 % when the current density increases from 600 to 1800 mA/g under illuminated condition. The enhanced performance is attributed to a more robust photo-assisted charge–discharge process, as confirmed by electronic structure analysis and theoretical simulations, which effectively facilitates the CuS-Cu<sub>2</sub>S conversion. Furthermore, the photo-assisted H-CuS-NF//Zn hybrid battery exhibits an expanded operating voltage of 1.15 V, exceptional discharge capacity of 694.6 mAh/g, and photo-charging capability of 104.2 mAh/g (after lighting 4 h), showing its significant potential for commercial applications. This work proves the morphology-mediated strategy for fabricating advanced CuS photoelectrode for high-performance photo-assisted rechargeable battery.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105160"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145922473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0