Ceramics International最新文献

{"title":"Influence of La2O3 on the structural and luminescence properties in Er3+/Ho3+ co-doped TeO2-BaF2-ZnF2 glass","authors":"Yumeng Ban ,&nbsp;Zelin He ,&nbsp;Fengjie Qin,&nbsp;Dechun Zhou,&nbsp;Yuxuan Cong,&nbsp;Tong Wu,&nbsp;Yuxiao Wu","doi":"10.1016/j.ceramint.2024.12.479","DOIUrl":"10.1016/j.ceramint.2024.12.479","url":null,"abstract":"<div><div>In this study, Er³⁺/Ho³⁺ co-doped fluorotellurite glass (TeO₂-BaF₂-ZnF₂) were prepared by high-temperature melting method. With the introduction of the network modifier La₂O₃, the optical active center (Er³⁺/Ho³⁺) was improved, leading to the enhancement of 2.7 μm emission. Raman spectra and DSC curve were utilized to evaluate the structural of glass and thermal stability of the glass. La³⁺ ions increase the thermal stability (ΔT = 147 °C) of the glass, accelerates the transition from [TeO₄] to [TeO₃₊₁]/[TeO₃] in the glass. Under 808 nm excitation, the maximum fluorescence intensity of 2.7 μm at the La₂O₃ concentration of 6 mol%. La³⁺ ions lead to a more compact network structure. Meanwhile, the luminescent center coordination environment is improved, thus reducing the energy loss of ion resonance. The fluorescence intensity of 2.7 μm is enhanced. In addition, a large emission cross-section (8.29 × 10⁻²¹ cm⁻²) and gain coefficient (7.43 cm⁻¹) were obtained. The forward energy transfer coefficient C_D-A (Er³⁺:⁴I_13/2→Ho³⁺:⁵I₇) in the glass is 2.39 × 10⁻⁴⁰ cm⁶/s. The results show that the introduction of La₂O₃ improves the luminescence efficiency of this system of glass in the ∼2.7 μm band. Er³⁺/Ho³⁺ co-doped fluorotellurite glass (TeO₂-BaF₂-ZnF₂) glass modified by La₂O₃ is an ideal gain medium material for mid-infrared fiber lasers.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 10467-10476"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A ceramic coating from polymer-derived SiCNO for high-temperature electrical insulation on Ni-based alloy substrates","authors":"Zaifu Cui,&nbsp;Zhenguo Lu,&nbsp;Liwen Huang,&nbsp;Zitong Xu,&nbsp;Zhonghai Wang,&nbsp;Wenjin Duan,&nbsp;Huayu Che,&nbsp;Bohuai Gou,&nbsp;Qiyu Liang,&nbsp;Jiahong Huang,&nbsp;Xiaojun Chen","doi":"10.1016/j.ceramint.2024.12.347","DOIUrl":"10.1016/j.ceramint.2024.12.347","url":null,"abstract":"<div><div>High-temperature thin-film sensors on nickel-based alloy high-temperature components are important for design validation and health monitoring of such high-temperature components, however, maintaining good electrical insulation at high temperatures remains a challenge for the stability and reliability of thin-film sensors. In this study, an insulating coating on nickel-based alloy substrate is proposed to solve the electrical insulation problem of thin-film sensors. A layer of precursor ceramic slurry is prepared on a nickel-based alloy substrate by direct-write printing method, and then a layer of pure precursor liquid is spin-coated on it after vacuum pyrolysis, and then a four-layered structural insulating coating is formed by the vacuum pyrolysis at last. The coatings were characterized by SEM, EDS, FTIR, XRD and XPS for surface morphology, elemental content, functional groups, and physical phase composition. The electrical resistance of the coatings was tested at high temperatures and their adhesion at room temperature was tested. Finally, the temperature and thermal shock resistance of the coatings were verified by preparing thin-film thermistors and heat flux sensors on the coating. A high-temperature resistant electrically insulating coating is provided for the preparation of thin-film sensors on high-temperature nickel-based alloys.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 7","pages":"Pages 9142-9150"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dielectric energy storage properties of 0–3 type BST/PVDF composite films","authors":"Yang Tong ,&nbsp;Jinguang Lai ,&nbsp;Yaxin Tian ,&nbsp;Jiachen Liu ,&nbsp;Wenle Pei ,&nbsp;Hui Yong ,&nbsp;Yuting Li ,&nbsp;Jungang Li ,&nbsp;Jifan Hu","doi":"10.1016/j.ceramint.2024.12.266","DOIUrl":"10.1016/j.ceramint.2024.12.266","url":null,"abstract":"<div><div>Spin coating was used to fabricate 0–3 type BST/PVDF nanocomposite dielectric films using high-concentration suspensions. Polyvinylidene fluoride (PVDF) served as the matrix material, incorporating Ba_0.8Sr_0.2TiO₃ (BST82) and Ba_0.6Sr_0.4TiO₃ (BST64) nanoparticles, each with a particle size of 200 nm. This study investigates the microstructure, dielectric properties, dielectric temperature spectra, and energy storage performance of the BST/PVDF nanocomposite films with varying volume fractions of BST nanoparticles. The results reveal that as the volume fraction of BST82 and BST64 increases, the dielectric constant, maximum polarization, and remanent polarization increase, while the breakdown field strength decreases. The dielectric constant of the 0–3 type nanocomposite films incorporating BST fits best with the Jayasunder-Smith model across a range of 0 vol% to 20 vol%. Moreover, the maximum discharge energy storage densities of the BST82/PVDF and BST64/PVDF nanocomposite films, at a BST volume fraction of 7 vol%, are 5.74 J/cm³ and 4.21 J/cm³, respectively, under field strengths of 310 MV/m and 270 MV/m. Notably, analysis of the dielectric temperature spectrum reveals that high-temperature dielectric relaxation is primarily governed by the PVDF matrix, with the nanoparticle fillers having no significant impact on this phenomenon. In conclusion, both BST82 and BST64 nanoparticles influence the performance of the polymer films, with BST82-based nanocomposites showing higher breakdown field strength. This study provides valuable insights into the fabrication of high-performance 0–3 type nanoparticle/polymer dielectric nanocomposite films using concentrated BST/PVDF nanosuspensions and the spin coating method.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 7","pages":"Pages 8362-8375"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lightweight and robust SiO₂f/SiO₂ composites with superior dielectric properties via three-dimensional woven spacer technique","authors":"Chunbing Yang ,&nbsp;Yinuo Pan ,&nbsp;Wuzhou Li ,&nbsp;Fujun Xu","doi":"10.1016/j.ceramint.2024.12.262","DOIUrl":"10.1016/j.ceramint.2024.12.262","url":null,"abstract":"<div><div>Lightweight, high-strength ceramic matrix composites with excellent dielectric properties are in great demand in strategic fields such as aerospace and wireless communication. Herein, a three-dimensional (3D) spacer SiO₂_f/SiO₂ composite with high porosity in the thickness direction was fabricated by combining 3D woven spacer quartz fabric with SiO₂ through a sol-gel process. As a result, the porous SiO₂_f/SiO₂ composite with a 3D woven spacer structure (SiO₂_f/SiO₂-3DWSS) exhibits a low volume density of 0.71 g/cm³, yet it can support over 30,000 times its own weight without any damage. Additionally, the as-produced SiO₂_f/SiO₂-3DWSS demonstrates an ultra-low dielectric constant (ε = 1.67), dielectric loss (tan δ = 7.2 × 10⁻³), and a high electromagnetic (EM) wave transmission coefficient (|<em>T</em>|² = 98.35 %). Furthermore, the dielectric properties of SiO₂_f/SiO₂-3DWSS demonstrate low sensitivity to temperature fluctuations, with the dielectric constant and dielectric loss changing by only 0.39 % and 7.54 %, respectively, when the ambient temperature reaches 400 °C. Simulations further reveal the advantage of SiO₂_f/SiO₂-3DWSS over solid structures in EM wave transmission. This work proposes a promising strategy for the design of advanced ceramic matrix composites characterized by lightweight properties and enhanced wave transmission.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 7","pages":"Pages 8329-8338"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reversible oxygen vacancy generation on black zirconia ceramic surfaces via laser modification for solar energy harvesting","authors":"Zhekun Chen ,&nbsp;Qian Sun ,&nbsp;Minghui Hong","doi":"10.1016/j.ceramint.2024.12.290","DOIUrl":"10.1016/j.ceramint.2024.12.290","url":null,"abstract":"<div><div>Zirconia ceramic is considered as a promising solar absorber material due to its excellent physical and chemical properties. The creation of radiation-induced centers in zirconia ceramic improves its optical properties but usually needs high-temperature or high-pressure conditions. In this work, pulse laser modification and heat treatment are applied to modulate its optical properties in ambient air. Reversible oxygen vacancies are introduced by rapid cooling under short pulse duration laser irradiation. Laser processing parameters is investigated for the formation of broad absorption bandwidth and high intensity. At the optimized laser influence, laser-treated zirconia surface appears black with a reflectivity of less than 5 % in the visible range. Continuously adjustable reflectivity ranging from 5 % to 94 % can be achieved on oxygen-deficient zirconia due to the removal of defects via heat treatment at different temperatures. The introduction and removal of oxygen vacancies are supported by lattice contraction and stress release through XRD and XPS analyses. The enhanced solar absorption is demonstrated with a temperature difference of 7.6 °C under 1 sun illumination, which exhibits potential applications in solar energy harvesting and energy conversion.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 7","pages":"Pages 8599-8606"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differences in structural and luminescent properties of GdVO4:Sm3+, Bi3+ powder and sol-gel derived films with varying Sm3+ contents and annealing temperatures","authors":"Gustavo Alejandro Silva-Ramírez ,&nbsp;Aristeo Garrido-Hernández ,&nbsp;María Luz Carrera-Jota ,&nbsp;Margarita García-Hernández ,&nbsp;Carlos Felipe Hernández-Fuentes ,&nbsp;Angel de Jesús Morales-Ramírez","doi":"10.1016/j.ceramint.2024.12.322","DOIUrl":"10.1016/j.ceramint.2024.12.322","url":null,"abstract":"<div><div>The differences in structural and luminescent properties between powders and sol-gel particles obtained from gadolinium vanadate GdVO₄ co-doped with Sm³⁺ (0, 1, 3, 5 and 7 at. %) and Bi³⁺ (3 at. %) as a function of chemical composition and annealing temperature are presented. The ceramic was synthesised using ammonium metavanadate and gadolinium nitrate as metallic precursors, ethanol and water as solvents, citric acid as a pH modifier, acetylacetone as a chelating agent, and F-127 as a crosslinking agent. The resulting transparent films exhibit a preferential growth along the &lt;220&gt; direction. Moreover, there is an energy transfer mechanism from Bi³⁺ to Sm³⁺ (via electric dipole-electric dipole interactions),and depending on the content of Sm³⁺ and Bi³⁺, it is possible to tune the luminescent colour response, obtaining blue, pink, white, and red emission. We also observed that the Bi³⁺ emission band presents a blue shift from 520 nm in powders to 510 nm in films, which also causes a red shift in the co-doped samples. This shift modifies the CIE (Commission Internationale de l' Eclairage) coordinates of the films compared with powders, where the powders emit colours in the yellow region of the spectrum, and the films shift towards the white region of the spectrum.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 7","pages":"Pages 8913-8929"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-sensitivity UV photodetector based on ZnO nanowires decorated with Au and ZnAl2O4 nanoparticles","authors":"Wei-Hsiang Liao ,&nbsp;Yi-Chang Yeh ,&nbsp;Yen-Liang Pan ,&nbsp;Cheng-Liang Hsu","doi":"10.1016/j.ceramint.2024.12.359","DOIUrl":"10.1016/j.ceramint.2024.12.359","url":null,"abstract":"<div><div>High-density and orderly aligned ZnO nanowires (NWs) were successfully synthesized on an Al doped ZnO (AZO) seed-layer-coated glass substrate using a hydrothermal method, with ZnAl₂O₄ nanoparticles (NPs) subsequently attached to the ZnO NWs via the sol-gel method. Under UV illumination, the ZnAl₂O₄ NPs/ZnO NWs heterostructure exhibited a remarkable photoresponse factor of approximately 18,000, about 30 times greater than that of pure ZnO NWs. Furthermore, Au nanoparticles (NPs) were sputtered onto the ZnAl₂O₄ NPs/ZnO NWs structure, where the localized surface plasmon resonance (LSPR) effect of the Au NPs significantly increased the generation of photogenerated electron-hole pairs, markedly enhancing the structure's conductivity. This enhancement resulted in a photoresponse factor of 93,825, approximately 150 times that of pure ZnO NWs. These findings confirm the exceptional UV sensitivity of the Au NPs/ZnAl₂O₄ NPs/ZnO NWs structure, highlighting its potential for applications in high-sensitivity UV photodetectors.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 7","pages":"Pages 9239-9247"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the impact of top-layer film water vapor transmittance rates on the stability of dielectric-metal-dielectric transparent conductive electrodes: A case study of ZnO, AZO, and AZO30","authors":"Haisheng Lin ,&nbsp;Yongqi Zhang ,&nbsp;Dikang Lu ,&nbsp;Zhaoting Chen ,&nbsp;Xinyu Song ,&nbsp;Congkang Xu ,&nbsp;Songyou Lian","doi":"10.1016/j.ceramint.2024.12.488","DOIUrl":"10.1016/j.ceramint.2024.12.488","url":null,"abstract":"<div><div>In this study, dielectric/metal/dielectric (DMD) transparent conductive multilayer films were fabricated with TiO₂ as the bottom layer and Ag as the middle layer, using 30 % aluminum oxide-doped zinc oxide (AZO₃₀), aluminum-doped zinc oxide (AZO), and zinc oxide (ZnO) as the top layers, respectively. The effect of water vapor transmission rates (WVTR) of different single-layer top films on PET substrates on the stability of the photoelectric performance of the DMD multilayer films was investigated. The results showed that the AZO₃₀ top layer exhibited the lowest WVTR, providing superior barrier properties that effectively prevented water vapor infiltration and subsequent oxidation of the metal layer, thus mitigating surface degradation. Consequently, the TiO₂/Ag/AZO₃₀ multilayer film sustained stable photoelectric performance under high-temperature and high-humidity conditions for an extended period of 24 days. In contrast, films with AZO and ZnO as the top layer showed higher WVTR values and inferior barrier performance, leading to significant degradation of the photoelectric properties of the TiO₂/Ag/AZO and TiO₂/Ag/ZnO multilayers. These findings highlight the critical role of the top layer's barrier properties in enhancing the photoelectric stability of the DMD multilayer films. This study suggests that employing a top layer with low WVTR as part of the multilayer transparent conductive electrode can significantly improve performance stability and long-term durability.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 10574-10581"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing the 2.7 μm fluorescence emission intensity of Er3+-doped KBa0.94Ca0.06Y(MoO4)3 laser crystal via Nd3+ sensitization and deactivation mechanisms","authors":"Yimin Yang ,&nbsp;Chunyu Zuo ,&nbsp;Lingbo Zhou ,&nbsp;Ming Chang ,&nbsp;Yuliang Huo ,&nbsp;Chenglong Li ,&nbsp;Xinying Li ,&nbsp;Shusen Xing ,&nbsp;Fanming Zeng ,&nbsp;Chun Li ,&nbsp;Weiling Yang ,&nbsp;Hai Lin ,&nbsp;Shasha Li ,&nbsp;Lina Liu","doi":"10.1016/j.ceramint.2024.12.427","DOIUrl":"10.1016/j.ceramint.2024.12.427","url":null,"abstract":"<div><div>Mid-infrared laser exhibits significant application potential in fields such as national defense, communications, and healthcare. However, despite the fact that the ⁴I_11/2 → ⁴I_13/2 transition of Er³⁺ ions can achieve mid-infrared emission, the process is limited by two major factors: low absorption efficiency of 808 nm pump light and the \"self-quenching effect\" caused by the short lifetime of the ⁴I_11/2 energy level. These two factors jointly affect the luminescence efficiency of this wavelength band. To overcome this issue, this study reports a novel Nd³⁺/Er³⁺ co-doped KBa_0.94Ca_0.06Y(MoO₄)₃ crystal and the effects of different ion doping concentrations and their interactions on the spectral properties are investigated in detail. The emission competition mechanisms in the Vis, NIR, and MIR bands of crystals doped with different concentrations of Er³⁺ ions under excitation by 808 nm pump light were analyzed. Furthermore, the energy transfer mechanism between Nd³⁺ and Er³⁺ was thoroughly investigated. The experimental results indicate that Nd³⁺ can serve not only as a sensitizer to enhance the population of Er³⁺ ions at the ⁴I_11/2 energy level through an energy transfer mechanism, thereby increasing the emission intensity in the 2.7 μm band, but also as a desensitizer to suppress emissions in the visible and NIR bands and shorten the lifetime of the ⁴I_13/2 energy level, effectively mitigating the \"self-quenching effect\". When Er³⁺ and Nd³⁺ ions are co-doped at concentrations of 7 mol% and 5 mol%, respectively, the crystals exhibit the highest mid-infrared emission intensity and the lowest pumping threshold, indicating their potential as efficient laser gain media. This study not only delves into the spectral mechanisms of novel laser gain media but also lays a solid theoretical foundation and provides powerful experimental evidence for the practical application of all-solid-state laser gain media in the 2.7 μm wavelength band.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 9947-9959"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetoelectric characterisation of SrFe12O19@MoS2 composites with high microwave absorption performance","authors":"Shouyu Ren ,&nbsp;Shaoyang Pan ,&nbsp;Yuxin Jin ,&nbsp;Kan Zhou ,&nbsp;Xiaohui Liang ,&nbsp;Zengming Man ,&nbsp;Pengtao Cheng ,&nbsp;Dunhui Wang","doi":"10.1016/j.ceramint.2024.12.449","DOIUrl":"10.1016/j.ceramint.2024.12.449","url":null,"abstract":"<div><div>M-type ferrites are promising electromagnetic wave absorbing materials due to their high magnetic loss, strong coercive force and uniaxial magnetic crystal anisotropy. However, because of the poor dielectric loss of pure SrFe₁₂O₁₉, it can be combined with higher-dielectric-loss materials to improve electromagnetic wave absorption. MoS₂ is widely used as an electromagnetic wave absorbing material owing to its semiconductor and moderate dielectric loss properties. Herein, SrFe₁₂O₁₉@MoS₂ composites were prepared via a hydrothermal method. The results showed that the dielectric loss and electromagnetic wave absorption properties of the SrFe₁₂O₁₉@MoS₂ composite are significantly improved compared with SrFe₁₂O₁₉ alone. At a matching thickness of 1.62 mm for SFO@MoS₂-I, the minimum reflection loss (RL_min) reaches −63.06 dB at 11.6 GHz. Furthermore, the effective absorption bandwidth covers almost the entire Ku band with a thickness of 1.30 mm. Radar cross section simulation indicate that SFO@MoS₂ exhibits strong electromagnetic wave attenuation. These results demonstrate that M-type ferrites are promising candidate for high efficiency absorbing materials.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 10184-10192"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}