International Journal of Applied Ceramic Technology最新文献_第3页

Magnetic and dielectric properties of bismuth-containing high-entropy garnet ferrites 含铋高熵石榴石铁氧体的磁性和介电性能

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-09 DOI: 10.1111/ijac.15054

Bixian Zhang, Kai Yang, Zhuohang Li, Sihao Jian, Bei Ren, Ziqian Meng, Yinghui Tang, Yang Miao

{"title":"Magnetic and dielectric properties of bismuth-containing high-entropy garnet ferrites","authors":"Bixian Zhang, Kai Yang, Zhuohang Li, Sihao Jian, Bei Ren, Ziqian Meng, Yinghui Tang, Yang Miao","doi":"10.1111/ijac.15054","DOIUrl":"https://doi.org/10.1111/ijac.15054","url":null,"abstract":"Yttrium iron garnet (YIG) ferrite is extensively utilized in microwave devices due to its exceptional fundamental electromagnetic properties and easily adjustable magnetic properties. In recent years, there has been a growing interest in investigating high-entropy garnets. However, its dielectric properties have not been extensively studied. This study prepared a series of bismuth-containing high-entropy yttrium iron garnet ferrites (Bi0.6Gd0.6Ho0.6Y0.6Re0.6) Fe5O12 (Re = Dy, Er, Tm, Yb) using the solid-phase reaction method. The addition of Bi3+ to the high-entropy matrix resulted in a reduction of the optimal phase forming temperature of garnet from 1450°C to 1150°C. Despite the incorporation of Bi3+ with a relatively large ionic radius, no heterophase generation occurred, leading to the formation of a single garnet phase. These high-entropy garnet samples exhibited unique magnetic properties along with high dielectric constants and low dielectric losses. Specifically, the dielectric constant (ε') of sample HEYIG-4 is measured at 20.26, with a low dielectric loss of just 2.78 × 10−3, while the specific saturation magnetization reached 16.86 emu/g. This paper expanded research within the field of high-entropy garnet ferrites.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770216","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}

引用次数: 0

New insight into the salt role during preparing α-hemihydrate gypsum in atmospheric salt solution: Particle size control 盐在常压盐溶液中制备α-半水石膏过程中作用的新认识：粒径控制

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-06 DOI: 10.1111/ijac.15063

Qingjun Guan, Fujia Zhou, Yulin Zhou, Weijian Yu, Zhigang Yin

{"title":"New insight into the salt role during preparing α-hemihydrate gypsum in atmospheric salt solution: Particle size control","authors":"Qingjun Guan, Fujia Zhou, Yulin Zhou, Weijian Yu, Zhigang Yin","doi":"10.1111/ijac.15063","DOIUrl":"https://doi.org/10.1111/ijac.15063","url":null,"abstract":"The synergistic control of the crystal morphology and size of α-hemihydrate gypsum (α-HH) was achieved by adjusting the Na2SO4 concentration and maleic acid content. Maleic acid primarily regulated the α-HH morphology through surface adsorption. The concentration of Na2SO4 determined crystal size by tailoring the maximum relative supersaturation (Smax) during α-HH crystallization. Higher Na2SO4 concentrations led to higher Smax and smaller crystal sizes. The Smax of α-HH in a 9% Na2SO4 solution was 4.5 times that in a 6% solution, resulting in a significant decrease in crystal size from approximately 40–18 µm as the Na2SO4 concentration increased from 6% to 9%, while maintaining similar crystal morphology (average aspect ratio of about 1.0). This study filled the gap in research on particle size control during the preparation of α-HH using the salt solution method under atmospheric pressure, contributing to a more systematic and comprehensive understanding of this method.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770026","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}

引用次数: 0

Study on preparation of silica nanospheres by oxidation of micron silicon powder 微米级硅粉氧化制备纳米二氧化硅微球的研究

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-06 DOI: 10.1111/ijac.15056

Yunlong Meng, Jinguang Yang, Ping Wu, Yifan Xie, Shiping Zhang, Li Wang

{"title":"Study on preparation of silica nanospheres by oxidation of micron silicon powder","authors":"Yunlong Meng, Jinguang Yang, Ping Wu, Yifan Xie, Shiping Zhang, Li Wang","doi":"10.1111/ijac.15056","DOIUrl":"https://doi.org/10.1111/ijac.15056","url":null,"abstract":"The oxidation of molten silicon powder in a high-temperature suspension phase represents a promising technique for the continuous production of spherical silica. However, the agglomeration of silicon powder at high temperatures increases particle size and reduces reactant surface area, ultimately slowing the oxidation rate and disrupting the suspension state, leading to failed silica preparation. To address these issues, a pre-oxidation step was implemented, whereby an oxide layer was created on the silicon powder. This was done to prevent molten silicon from agglomerating. This paper investigates the effect of pre-oxidation time and melting temperature on the generation of spherical silica using a static suspension method. The 5 µm average-sized silicon powder underwent pre-oxidation at 1300°C for 30 min, followed by oxidation at the silicon's melting point. This resulted in amorphous spherical silica, ranging from 200 to 400 nm. Pre-oxidation results in a Si@SiO2 core–shell structure, which effectively prevents molten silicon agglomeration and significantly enhances particle oxidation rates. These findings lay the foundation for scaled-up production of spherical silica using the airflow suspension method.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770027","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}

引用次数: 0

Computational design of transition metal nitrides (Ti1−xMx)N (M = Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, and W) for coatings 涂层过渡金属氮化物（Ti1−xMx）N （M = Ti， V, Cr, Zr, Nb, Mo, Hf， Ta和W）的计算设计

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-05 DOI: 10.1111/ijac.15051

Sooah Kyung, Hyokyeong Kim, Jongwook Kwak, Jiwoong Kim

引用次数: 0

Corrosion of zirconium-based refractories in glass-contact areas: Mechanisms and challenges 锆基耐火材料在玻璃接触区域的腐蚀：机制和挑战

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-04 DOI: 10.1111/ijac.15064

Cristian Perez Velasquez, Maziar Montazerian, John C. Mauro

{"title":"Corrosion of zirconium-based refractories in glass-contact areas: Mechanisms and challenges","authors":"Cristian Perez Velasquez, Maziar Montazerian, John C. Mauro","doi":"10.1111/ijac.15064","DOIUrl":"https://doi.org/10.1111/ijac.15064","url":null,"abstract":"Zirconium-based refractories are essential materials in the glass industry due to their outstanding properties including high refractoriness, good thermal shock resistance, and high corrosion resistance with respect to contact with the molten glass, making them suitable for use in critical parts of glass melting furnaces, such as the bottom, side wall lining, and throat. Such refractories consist of zirconia (ZrO2), zircon, or some combination with other oxides such as alumina (Al2O3) and silica (SiO2), for example, as with Al2O3–ZrO2–SiO2 and high ZrO2 refractories. Despite having good behavior when in contact with molten glass at high temperatures, these materials must be replaced periodically due to wear, primarily because of chemical corrosion. The complex corrosion process depends on different factors such as the temperature, glass composition, and the chemical composition and microstructure of the refractory material, among other factors. Much of the information is scattered across various sources, making it difficult to build a holistic understanding of the corrosion process of this specific kind of refractory so critical to the glass industry. The current paper intends to fill this gap by providing a comprehensive review of the corrosion of zirconium-based refractories used in glass-contact areas in glass making, enhancing our understanding of these refractories and identifying new areas for innovation.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ijac.15064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microwave rapid synthesis of LiNi0.85Mn0.10Co0.05O2 positive electrode materials for lithium-ion batteries 微波快速合成锂离子电池正极材料LiNi0.85Mn0.10Co0.05O2

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-04 DOI: 10.1111/ijac.15062

Yuki Koshika, Haruki Kaneda, Yuki Furuichi

{"title":"Microwave rapid synthesis of LiNi0.85Mn0.10Co0.05O2 positive electrode materials for lithium-ion batteries","authors":"Yuki Koshika, Haruki Kaneda, Yuki Furuichi","doi":"10.1111/ijac.15062","DOIUrl":"https://doi.org/10.1111/ijac.15062","url":null,"abstract":"Ni-rich (Ni ≥80 atom%) layered oxides are promising candidates of positive electrode materials for lithium-ion batteries because of high specific capacity, and reducing energy consumption during synthesis is important for mass production to reduce environmental impact. Microwave heating of Ni-rich layered oxide is anticipated to enable much faster and more effective synthesis than conventional method; however, only a few studies have been reported. In this study, LiNi0.85Mn0.10Co0.05O2 (NMC85) positive electrode materials were prepared by preheating the mixture of Ni0.85Mn0.10Co0.05(OH)2 precursor and LiOH, followed by microwave heating at a rate of 28.3°C min−1 and holding at 850°C for 1 h. The specific discharge capacity in half-cell of NMC85 synthesized by microwave heating was 190.0 mAh g−1. Although the capacity was still inferior to that of NMC85 synthesized by conventional heating method, which was one of the highest values among Ni-rich layered oxide by microwave synthesis, owing to high crystallinity. Furthermore, much improvement of the electrochemical properties is expected by increasing uniformity during the microwave heating, because inhomogeneous crystal growth and cation mixing were observed. This study indicates the possibility to apply microwave heating for the synthesis of Ni-rich layered oxide and improve the energy efficiency considerably.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770355","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}

引用次数: 0

Thermal decomposition and non-isothermal kinetics of microcrystalline magnesite 微晶菱镁矿热分解及非等温动力学

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-04 DOI: 10.1111/ijac.15059

Si Li, Dan Sun, Ziyang Yin, Anxiu Wang, Canjun Yu, Yihan Wang, Runtang Feng, Chengliang Ma

{"title":"Thermal decomposition and non-isothermal kinetics of microcrystalline magnesite","authors":"Si Li, Dan Sun, Ziyang Yin, Anxiu Wang, Canjun Yu, Yihan Wang, Runtang Feng, Chengliang Ma","doi":"10.1111/ijac.15059","DOIUrl":"https://doi.org/10.1111/ijac.15059","url":null,"abstract":"The thermal decomposition (TD) of magnesite is crucial for its high-value applications, and understanding its reaction mechanisms requires establishing accurate kinetic models. This research investigates the TD kinetics of microcrystalline magnesite under varying heating rates (HRs) using thermogravimetry and differential scanning calorimetry (TG–DSC) analysis. Kinetic parameters were derived using the Coats–Redfern (CR), Kissinger–Akahira–Sunose (KAS), and Flynn–Wall–Ozawa (FWO) methods. The influence of HRs on the decomposition process and the resulting MgO morphology was analyzed. The results demonstrated that as HRs increased, the decomposition and reaction rate curves shifted to higher temperatures, necessitating elevated temperatures for similar levels of decomposition. The mean activation energy (<math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>E</mi>\u0000 <mi>a</mi>\u0000 </msub>\u0000 <annotation>${{E}_a}$</annotation>\u0000 </semantics></math>) was calculated to be 162.45 kJ/mol, with a strong linear correlation between the <math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>E</mi>\u0000 <mi>a</mi>\u0000 </msub>\u0000 <annotation>${{E}_a}$</annotation>\u0000 </semantics></math> and pre-exponential factor, suggesting robust kinetic compensation. The TD followed a two-dimensional phase boundary mechanism with cylindrical symmetry. “Original shape pseudomorphs” were found to significantly affect the microstructure, particle size variation, and kinetic behavior of the decomposition products. These findings provide important insights for the industrial processing of microcrystalline magnesite.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770357","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}

引用次数: 0

Core-shell architectures: Tailoring the electromagnetic properties for enhanced absorption 核壳结构：调整电磁特性以增强吸收

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-04 DOI: 10.1111/ijac.15055

Chenyang Shao, Jie Yang, Yujia Huang, Yan Xing

{"title":"Core-shell architectures: Tailoring the electromagnetic properties for enhanced absorption","authors":"Chenyang Shao, Jie Yang, Yujia Huang, Yan Xing","doi":"10.1111/ijac.15055","DOIUrl":"https://doi.org/10.1111/ijac.15055","url":null,"abstract":"As wireless communication technology advances, the risks of electromagnetic (EM) pollution to both electrical infrastructure and human health are escalating. EM absorbers stand out as a superior solution for their ability to effectively absorb and attenuate EM waves. In the quest for optimal EM absorption capabilities, the innovative application of microstructural geometrical effects breathes fresh life into the evolution of EM absorbers. The incorporation of a core-shell structure markedly amplifies the performance of EM wave absorption by synergizing various mechanisms, including geometrical influences, interfacial polarization, electronic conduction, and the coupling of magnetic and dielectric properties. This review meticulously reviews the state-of-the-art in core-shell structured EM absorbing materials, highlighting materials such as metals, carbon, and high-entropy materials. Subsequently, the key strategies for performance tailoring such as material selection, crystal defects, and geometrical morphology are consequently introduced. Furthermore, the discussion culminates in a comprehensive overview of the core-shell structured EM absorbers, offering an in-depth analysis and a forward-looking perspective on their prospective applications in the future landscape of technology.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770460","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}

引用次数: 0

Enhanced properties of (TaNbTiV)C high-entropy carbide ceramics through controlled structure and morphology of high-entropy carbide powders 通过控制高熵碳化物粉末的结构和形貌，提高（TaNbTiV）C高熵碳化物陶瓷的性能

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-04 DOI: 10.1111/ijac.15060

Haitao Li, Ruoyu Chen, Feng Liu, Chengxin Li, Xiaoyan Yang, Saisai Li, Wenbao Jia

{"title":"Enhanced properties of (TaNbTiV)C high-entropy carbide ceramics through controlled structure and morphology of high-entropy carbide powders","authors":"Haitao Li, Ruoyu Chen, Feng Liu, Chengxin Li, Xiaoyan Yang, Saisai Li, Wenbao Jia","doi":"10.1111/ijac.15060","DOIUrl":"https://doi.org/10.1111/ijac.15060","url":null,"abstract":"Submicron high-entropy carbide (HEC) (TaNbTiV)C powders with various morphologies and properties were prepared using the molten salt method by adjusting structures and graphitization of carbon sources. Subsequently, the HEC ceramics were sintered at 1900°C using spark plasma sintering. Compared to traditional carbon sources (carbon black and flake graphite), powders synthesized using graphitic carbon microspheres with a spherical shape exhibited a smaller particle size of 0.45 µm, a larger specific surface area of 14.46 m2/g, and a larger lattice constant of 0.4451 nm. Moreover, the HEC powders prepared using graphitic carbon microspheres enhanced the sintering of the HEC matrix, leading to improved mechanical properties and oxidation resistance of the HEC ceramics compared to those prepared using other carbon sources. Unlike the precursor method used to adjust the HEC powder structure, the molten salt method is a low-cost and straightforward approach to regulating the HEC powder structure by controlling the structure of raw material.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770459","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}

引用次数: 0

Effect of calcium magnesium aluminate on microstructural distribution of SiO2 impurity in magnesia 铝酸钙镁对氧化镁中SiO2杂质微观结构分布的影响

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-04 DOI: 10.1111/ijac.15057

Siqi Zhou, Yaowu Wei, Yiming Yu, Christoph Wöhrmeyer, Jianying Gao, Chunfeng Liu

{"title":"Effect of calcium magnesium aluminate on microstructural distribution of SiO2 impurity in magnesia","authors":"Siqi Zhou, Yaowu Wei, Yiming Yu, Christoph Wöhrmeyer, Jianying Gao, Chunfeng Liu","doi":"10.1111/ijac.15057","DOIUrl":"https://doi.org/10.1111/ijac.15057","url":null,"abstract":"The effect of calcium magnesium aluminate (hereinafter referred to as CMA) on the microstructural distribution of the main impurity SiO2 in magnesia was investigated in this research. The XRD, SEM, and EDS analyses were used in this work. It can be seen from the result that SiO2 in low-grade sintered magnesia diffused into CMA area at high temperature and the distribution of SiO2 in sintered magnesia was significantly reduced. The main mineral phase of sintered magnesia was periclase and monticellite, and impurities in sintered magnesia mainly existed in the form of monticellite, which was completely decomposed into liquid phase and periclase above 1400°C, SiO2 in the liquid phase in the sintered magnesia migrated into the liquid phase that formed in the CMA. Furthermore, the adsorption energy of CaO on SiO2 is stronger than that of MgO on SiO2, so the SiO2 in sintered magnesia diffused into CMA due to its relatively higher CaO content compared with the sintered magnesia. The SiO2 content in fused magnesia was lower than that of sintered magnesia and the dicalcium silicate (C2S) content in fused magnesia was higher than that of sintered magnesia, so the influence of CMA on microstructural distribution of SiO2 in fused magnesia was obviously different than that with low grade sintered magnesia.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770354","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}

引用次数: 0