Pub Date : 2025-04-07DOI: 10.1016/j.matlet.2025.138543
Atul Yadav , Anil K. Sharma , Abhishek Dubey , Kajal K. Dey , Dhirendra K. Chaudhary , Punit K. Dhawan
This study explores the utility of MoS2, ZnS, and MoS2/ZnS nanocomposites as electrodes for supercapacitor applications. Binder-free electrodes were fabricated, and the MoS2/ZnS composite exhibited the highest specific capacitance of 1628.3 Fg−1 at a current density of 1 Ag−1, highlighting its excellent electrochemical performance. These findings suggest that optimizing the composition and structure of MoS2/ZnS nanocomposites could enhance the efficiency and performance of supercapacitor technologies and open new avenues for advancements in energy storage technology.
{"title":"Enhanced pseudocapacitive performance of MoS2/ZnS nanocomposites for advanced supercapacitor applications","authors":"Atul Yadav , Anil K. Sharma , Abhishek Dubey , Kajal K. Dey , Dhirendra K. Chaudhary , Punit K. Dhawan","doi":"10.1016/j.matlet.2025.138543","DOIUrl":"10.1016/j.matlet.2025.138543","url":null,"abstract":"<div><div>This study explores the utility of MoS<sub>2</sub>, ZnS, and MoS<sub>2</sub>/ZnS nanocomposites as electrodes for supercapacitor applications. Binder-free electrodes were fabricated, and the MoS<sub>2</sub>/ZnS composite exhibited the highest specific capacitance of 1628.3 Fg<sup>−1</sup> at a current density of 1 Ag<sup>−1</sup>, highlighting its excellent electrochemical performance. These findings suggest that optimizing the composition and structure of MoS<sub>2</sub>/ZnS nanocomposites could enhance the efficiency and performance of supercapacitor technologies and open new avenues for advancements in energy storage technology.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"392 ","pages":"Article 138543"},"PeriodicalIF":2.7,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-07DOI: 10.1016/j.matlet.2025.138545
Yang Huang , Wensheng Liu , Chuzhao Zhang , Mingdong Wu , Zeyu Li , Juan Wang , Baishan Chen , Daihong Xiao , Lanping Huang
Bimodal structures in metallic materials have been considered as promising research frontiers. In this study, we applied a pre-thermomechanical treatment that improved the tensile strength of a bimodal-grained Al-5.10 Mg-3.09Zn-0.21Ag-0.13Zr-0.08Yb alloy by 12 % to 543.7 MPa, while the bimodal structure enabled the alloy to retain approximately 90 % of tensile elongation. The enhanced performance originates from high-density Guinier-Preston (GP) zones generated during pre-aging and substantial dislocations introduced by pre-straining, which collectively accelerated T-phase age-hardening kinetics. Furthermore, the bimodal structure’s coarse grain components enhanced dislocation storage capacity, thereby alleviating plasticity loss that typically associated with pre-straining processes.
{"title":"Enhanced strength-ductility synergy via bimodal-grained structure in a pre-thermomechanical treated Al-Mg-Zn alloy","authors":"Yang Huang , Wensheng Liu , Chuzhao Zhang , Mingdong Wu , Zeyu Li , Juan Wang , Baishan Chen , Daihong Xiao , Lanping Huang","doi":"10.1016/j.matlet.2025.138545","DOIUrl":"10.1016/j.matlet.2025.138545","url":null,"abstract":"<div><div>Bimodal structures in metallic materials have been considered as promising research frontiers. In this study, we applied a pre-thermomechanical treatment that improved the tensile strength of a bimodal-grained Al-5.10 Mg-3.09Zn-0.21Ag-0.13Zr-0.08Yb alloy by 12 % to 543.7 MPa, while the bimodal structure enabled the alloy to retain approximately 90 % of tensile elongation. The enhanced performance originates from high-density Guinier-Preston (GP) zones generated during pre-aging and substantial dislocations introduced by pre-straining, which collectively accelerated T-phase age-hardening kinetics. Furthermore, the bimodal structure’s coarse grain components enhanced dislocation storage capacity, thereby alleviating plasticity loss that typically associated with pre-straining processes.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"392 ","pages":"Article 138545"},"PeriodicalIF":2.7,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-06DOI: 10.1016/j.matlet.2025.138541
Ahmed Babeker Elhag , Abdellatif Selmi , Zeeshan Ahmad , Nejib Ghazouani
This study examines the impact of municipal solid waste incineration fly ash (MFA) on silica fume-based self-compacting geopolymer concrete (SGC). MFA replaced silica fume at 0–40 % by weight across five mixes. Results showed that workability improved with MFA incorporation, as shown by slump flow, V-funnel, and L-box tests. The highest compressive (44.12 MPa) and splitting tensile strengths (3.87 MPa) were achieved at 20 % MFA replacement after 28 days, with further increases reducing strength due to altered geopolymerization and shrinkage. SEM confirmed reduced voids, while TGA showed 1.18 % higher mass loss, indicating improved geopolymerization. Excess MFA (≥30 %) increased porosity and cracking, reducing performance due to unreacted particles and carbonation effects.
{"title":"Enhancing mechanical properties and microstructural integrity of silica fume-based self-compacting geopolymer concrete through municipal solid waste incineration fly ash incorporation","authors":"Ahmed Babeker Elhag , Abdellatif Selmi , Zeeshan Ahmad , Nejib Ghazouani","doi":"10.1016/j.matlet.2025.138541","DOIUrl":"10.1016/j.matlet.2025.138541","url":null,"abstract":"<div><div>This study examines the impact of municipal solid waste incineration fly ash (MFA) on silica fume-based self-compacting geopolymer concrete (SGC). MFA replaced silica fume at 0–40 % by weight across five mixes. Results showed that workability improved with MFA incorporation, as shown by slump flow, V-funnel, and L-box tests. The highest compressive (44.12 MPa) and splitting tensile strengths (3.87 MPa) were achieved at 20 % MFA replacement after 28 days, with further increases reducing strength due to altered geopolymerization and shrinkage. SEM confirmed reduced voids, while TGA showed 1.18 % higher mass loss, indicating improved geopolymerization. Excess MFA (≥30 %) increased porosity and cracking, reducing performance due to unreacted particles and carbonation effects.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"392 ","pages":"Article 138541"},"PeriodicalIF":2.7,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-06DOI: 10.1016/j.matlet.2025.138537
Shuo Dong, Min Zhu, Xin Dai, Tangxiang Xu, Yingqi Li, Juan Gao
High-quality SrMoO3 films were synthesized using pulsed laser deposition under controlled oxygen pressure conditions. The 32-nm films consistently demonstrated metallic behavior across all oxygen pressures investigated. The 16-nm films exhibited increased resistivity at 4.9 K and 13.8 K when deposited at 10−4 Torr and 10−3 Torr, respectively. Metal-insulator transitions were observed at critical temperatures of 19.8 K, 25.8 K, and 27.8 K for 10-nm films grown under different oxygen pressures. The electronic structure and electrical transport properties become increasingly sensitive to oxygen pressure variations with decreasing film thickness. This sensitivity explains the occurrence of metal–insulator transitions in 10-nm films under different oxygen conditions.
{"title":"Thickness and oxygen pressure dependent electrical transport properties in SrMoO3 thin films","authors":"Shuo Dong, Min Zhu, Xin Dai, Tangxiang Xu, Yingqi Li, Juan Gao","doi":"10.1016/j.matlet.2025.138537","DOIUrl":"10.1016/j.matlet.2025.138537","url":null,"abstract":"<div><div>High-quality SrMoO<sub>3</sub> films were synthesized using pulsed laser deposition under controlled oxygen pressure conditions. The 32-nm films consistently demonstrated metallic behavior across all oxygen pressures investigated. The 16-nm films exhibited increased resistivity at 4.9 K and 13.8 K when deposited at <em>10</em><sup>−</sup><em><sup>4</sup></em> Torr and <em>10</em><sup>−</sup><em><sup>3</sup></em> Torr, respectively. Metal-insulator transitions were observed at critical temperatures of 19.8 K, 25.8 K, and 27.8 K for 10-nm films grown under different oxygen pressures. The electronic structure and electrical transport properties become increasingly sensitive to oxygen pressure variations with decreasing film thickness. This sensitivity explains the occurrence of metal–insulator transitions in 10-nm films under different oxygen conditions.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"392 ","pages":"Article 138537"},"PeriodicalIF":2.7,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-06DOI: 10.1016/j.matlet.2025.138542
Dhruva Kumar Goyal , Arpit Bajpai , Ravi Kant
This study investigates the effect of clamp pressure on laser transmission welding of polyamide-6 sheets using electrolytic iron powder for energy absorption. Welding is performed with a fibre laser on 2 mm thick polyamide-6 sheets, and the influence of clamp pressure on weld strength and morphology is analysed. Results show that weld strength increases with pressure up to an optimal level but decreases beyond due to excessive molten polymer loss. SEM analysis confirms iron particle embedding, enhancing mechanical interlocking. Fractographic analysis shows substrate and interface fracture patterns with pressure variations, indicating differences in molecular interdiffusion. The findings highlight the importance of optimizing clamp pressure for better joint strength and integrity.
{"title":"Influence of clamp pressure on weld performance and fracture mode in laser welded polyamide-6 sheets","authors":"Dhruva Kumar Goyal , Arpit Bajpai , Ravi Kant","doi":"10.1016/j.matlet.2025.138542","DOIUrl":"10.1016/j.matlet.2025.138542","url":null,"abstract":"<div><div>This study investigates the effect of clamp pressure on laser transmission welding of polyamide-6 sheets using electrolytic iron powder for energy absorption. Welding is performed with a fibre laser on 2 mm thick polyamide-6 sheets, and the influence of clamp pressure on weld strength and morphology is analysed. Results show that weld strength increases with pressure up to an optimal level but decreases beyond due to excessive molten polymer loss. SEM analysis confirms iron particle embedding, enhancing mechanical interlocking. Fractographic analysis shows substrate and interface fracture patterns with pressure variations, indicating differences in molecular interdiffusion. The findings highlight the importance of optimizing clamp pressure for better joint strength and integrity.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"392 ","pages":"Article 138542"},"PeriodicalIF":2.7,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Long-term durability testing experiments were conducted on Ti2AlC coatings prepared on 316L stainless steel substrates in oxygen-saturated Lead-Bismuth Eutectic (LBE) at 360 °C for up to 6500 h with a surface flowing velocity of about 14 m/s. With prolonged erosion, stripe-like erosion traces gradually developed along the flow direction on the coating surface. O in LBE reacted with Ti and Al, leading to the formation of the protective oxide layer which was mainly composed of TiO2 and Al2O3 on the surface of Ti2AlC coating. The outer oxide was continuously sheared by high-speed LBE. As the Al and Ti is gradually consumed, Pb and Bi penetrate into the coating. By 6500 h, severe non-uniform thinning and accelerated spalling were observed, and some local coating had completely peeled off.
{"title":"Erosion-corrosion behavior of Ti2AlC coatings in high-speed flowing lead-bismuth eutectic","authors":"Xudan Ma , Xin Shen , Haijie Tang , Ruoxiang Qiu , Kefeng Lyu","doi":"10.1016/j.matlet.2025.138534","DOIUrl":"10.1016/j.matlet.2025.138534","url":null,"abstract":"<div><div>Long-term durability testing experiments were conducted on Ti<sub>2</sub>AlC coatings prepared on 316L stainless steel substrates in oxygen-saturated Lead-Bismuth Eutectic (LBE) at 360 °C for up to 6500 h with a surface flowing velocity of about 14 m/s. With prolonged erosion, stripe-like erosion traces gradually developed along the flow direction on the coating surface. O in LBE reacted with Ti and Al, leading to the formation of the protective oxide layer which was mainly composed of TiO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub> on the surface of Ti<sub>2</sub>AlC coating. The outer oxide was continuously sheared by high-speed LBE. As the Al and Ti is gradually consumed, Pb and Bi penetrate into the coating. By 6500 h, severe non-uniform thinning and accelerated spalling were observed, and some local coating had completely peeled off.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"392 ","pages":"Article 138534"},"PeriodicalIF":2.7,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-05DOI: 10.1016/j.matlet.2025.138538
Evgenia Chernyshova , Kseniia Shcherbakova , Ilya Moiseenkov , Denis Ten , Vyacheslav Yushchuk , Alexei Tokar , Efim Argunov , Aleksandr Komissarov , Xianli Su , Vladimir Khovaylo
Skutterudites are one of the most effective thermoelectric materials for applications in the medium-temperature range. Despite this, less efforts were targeted on the development of scalable and fast synthesis method as well as on investigation of mechanical properties of these compounds. In this work we report on mechanical properties of p-type skutterudites obtained by mechanical alloying (MA) followed by spark plasma sintering (SPS). It is shown that a single-phase skutterudite can be formed after milling for t < 30 min. Appearance of secondary phases during SPS enhances microhardness and Vicker’s fracture resistance of the consolidated samples.
{"title":"Mechanical properties of p-type CeFe3.5Co0.5Sb12 and La0.75Ce0.25Fe3.5Co0.5Sb12 skutterudites synthesized by MA-SPS","authors":"Evgenia Chernyshova , Kseniia Shcherbakova , Ilya Moiseenkov , Denis Ten , Vyacheslav Yushchuk , Alexei Tokar , Efim Argunov , Aleksandr Komissarov , Xianli Su , Vladimir Khovaylo","doi":"10.1016/j.matlet.2025.138538","DOIUrl":"10.1016/j.matlet.2025.138538","url":null,"abstract":"<div><div>Skutterudites are one of the most effective thermoelectric materials for applications in the medium-temperature range. Despite this, less efforts were targeted on the development of scalable and fast synthesis method as well as on investigation of mechanical properties of these compounds. In this work we report on mechanical properties of <em>p</em>-type skutterudites obtained by mechanical alloying (MA) followed by spark plasma sintering (SPS). It is shown that a single-phase skutterudite can be formed after milling for <em>t</em> < 30 min. Appearance of secondary phases during SPS enhances microhardness and Vicker’s fracture resistance of the consolidated samples.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"392 ","pages":"Article 138538"},"PeriodicalIF":2.7,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study proposes a high-yield strength and high-toughness transformation-induced plasticity (TRIP) titanium alloy design strategy, utilizing deformation-induced metastable β-phase and localized TRIP effects, while optimizing its fabrication through a short-process thermomechanical treatment. The results show that rolling-induced metastable β-phase can undergo localized TRIP effects during plastic deformation, significantly enhancing the yield strength (1250 MPa) of the alloy and avoiding the issue of yield strength drop in traditional TRIP titanium alloys caused by large-scale SIM (stress-induced martensitic transformation). Furthermore, SIM-dislocation interactions provide a dynamic strengthening mechanism, enabling the alloy to achieve high strength while maintaining excellent strength-ductility synergy. Meanwhile, a short-process fabrication route combining solution treatment and deformation-induced β-phase stability tuning eliminates the aging treatment required in conventional titanium alloys, significantly reducing manufacturing costs while enhancing feasibility for large-scale industrial applications. This design strategy, which leverages deformation-induced metastable structures and localized TRIP effects, achieves ideal mechanical properties, offering new insights for the development of high-strength and high-toughness materials.
{"title":"High-yield-strength TRIP titanium alloy: a low-cost and short-process manufacturing approach","authors":"Junyang Chen, Zhilei Xiang, Cheng Qian, Zongyi Zhou, Bing Wang, Jihao Li, Ziyong Chen","doi":"10.1016/j.matlet.2025.138535","DOIUrl":"10.1016/j.matlet.2025.138535","url":null,"abstract":"<div><div>This study proposes a high-yield strength and high-toughness transformation-induced plasticity (TRIP) titanium alloy design strategy, utilizing deformation-induced metastable β-phase and localized TRIP effects, while optimizing its fabrication through a short-process thermomechanical treatment. The results show that rolling-induced metastable β-phase can undergo localized TRIP effects during plastic deformation, significantly enhancing the yield strength (1250 MPa) of the alloy and avoiding the issue of yield strength drop in traditional TRIP titanium alloys caused by large-scale SIM (stress-induced martensitic transformation). Furthermore, SIM-dislocation interactions provide a dynamic strengthening mechanism, enabling the alloy to achieve high strength while maintaining excellent strength-ductility synergy. Meanwhile, a short-process fabrication route combining solution treatment and deformation-induced β-phase stability tuning eliminates the aging treatment required in conventional titanium alloys, significantly reducing manufacturing costs while enhancing feasibility for large-scale industrial applications. This design strategy, which leverages deformation-induced metastable structures and localized TRIP effects, achieves ideal mechanical properties, offering new insights for the development of high-strength and high-toughness materials.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"392 ","pages":"Article 138535"},"PeriodicalIF":2.7,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-05DOI: 10.1016/j.matlet.2025.138539
K. Tulja Bhavani , Dhavalkumar N. Joshi , Simone Meroni , Trystan Watson , Viresh Dutta
This study reports the fabrication of robust methylammonium lead iodide (MAPI) films via the e-spray technique, utilizing controlled and reversible hydration to enhance optoelectronic properties. Moisture in MAPI-based perovskite solar cells (PSCs) can either recrystallize or degrade the material, depending on the degree of hydration. The formation of hydrated perovskite phases (CH3NH3PbI3·H2O and CH3NH3PbI3·2H2O) and their phase reversibility are demonstrated in spray-coated MAPI films deposited under electric fields (E-fields). X-ray diffraction and absorption spectra reveal phase transitions influenced by the E-field during deposition. The resultant films, terminated with PbI2, exhibit reduced hydration (mono- or di-hydrated phases), forming a robust structure. Upon annealing, these hydrated phases revert to the perovskite phase. This work highlights the beneficial role of controlled hydration in MAPI films, offering insights into improving their stability and optoelectronic performance for PSC applications.
{"title":"Fabrication of stable MAPbI3 perovskite via e-spray technique- hydration and phase reversibility","authors":"K. Tulja Bhavani , Dhavalkumar N. Joshi , Simone Meroni , Trystan Watson , Viresh Dutta","doi":"10.1016/j.matlet.2025.138539","DOIUrl":"10.1016/j.matlet.2025.138539","url":null,"abstract":"<div><div>This study reports the fabrication of robust methylammonium lead iodide (MAPI) films via the e-spray technique, utilizing controlled and reversible hydration to enhance optoelectronic properties. Moisture in MAPI-based perovskite solar cells (PSCs) can either recrystallize or degrade the material, depending on the degree of hydration. The formation of hydrated perovskite phases (CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>·H<sub>2</sub>O and CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>·2H<sub>2</sub>O) and their phase reversibility are demonstrated in spray-coated MAPI films deposited under electric fields (E-fields). X-ray diffraction and absorption spectra reveal phase transitions influenced by the E-field during deposition. The resultant films, terminated with PbI<sub>2</sub>, exhibit reduced hydration (mono- or di-hydrated phases), forming a robust structure. Upon annealing, these hydrated phases revert to the perovskite phase. This work highlights the beneficial role of controlled hydration in MAPI films, offering insights into improving their stability and optoelectronic performance for PSC applications.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"392 ","pages":"Article 138539"},"PeriodicalIF":2.7,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-05DOI: 10.1016/j.matlet.2025.138536
Syed Makarim Zaid , Mustapha Danladi Ibrahim , Ab Aziz Bin Baharuddin , K.B. Mustapha
Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) offers superior compliance among the PVDF-based polymers but lacks adequate piezoelectric property. While certain functional fillers can enhance PVDF-HFP’s piezoelectric property, reinforcement with these fillers relies on environmentally harmful solvents. This raises concerns for the ensuing green applications of PVDF-HFP. This study investigates the use of DMSO (a green solvent) for reinforcing PVDF-HFP with barium titanate (BTO), zinc oxide (ZnO), and Rochelle salt (RS). Results show DMSO preserves the nucleation efficiency of the fillers, thus enabling notable β-phase transformation associated with the piezoelectric response. BTO/RS reinforcement achieved the highest β-phase content (78%) compared to ZnO/RS (66%). Further crystallographic and thermo-mechanical characterizations confirmed BTO/RS’s superiority in enhancing thermal stability.
{"title":"Towards green fabrication of PVDF-HFP composite films: Assessing the impact of DMSO and functional fillers (ZnO, BTO, and Rochelle Salt) on the piezo-mechanical properties","authors":"Syed Makarim Zaid , Mustapha Danladi Ibrahim , Ab Aziz Bin Baharuddin , K.B. Mustapha","doi":"10.1016/j.matlet.2025.138536","DOIUrl":"10.1016/j.matlet.2025.138536","url":null,"abstract":"<div><div>Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) offers superior compliance among the PVDF-based polymers but lacks adequate piezoelectric property. While certain functional fillers can enhance PVDF-HFP’s piezoelectric property, reinforcement with these fillers relies on environmentally harmful solvents. This raises concerns for the ensuing green applications of PVDF-HFP. This study investigates the use of DMSO (a green solvent) for reinforcing PVDF-HFP with barium titanate (BTO), zinc oxide (ZnO), and Rochelle salt (RS). Results show DMSO preserves the nucleation efficiency of the fillers, thus enabling notable β-phase transformation associated with the piezoelectric response. BTO/RS reinforcement achieved the highest β-phase content (78%) compared to ZnO/RS (66%). Further crystallographic and thermo-mechanical characterizations confirmed BTO/RS’s superiority in enhancing thermal stability.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"392 ","pages":"Article 138536"},"PeriodicalIF":2.7,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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