Article
Materials Science, Multidisciplinary
Xiaoma Tao, Hongmei Chen, Yulu Zhou, Qing Peng, Yifang Ouyang
Summary: The formation energies of mono-vacancy and anti-site defect in ZrC have been calculated, along with the site preference of 28 transition metals atoms substituting C or Zr atom. The interaction between intrinsic vacancies and TM impurity atoms show attractive configurations in ZrC, which could be beneficial for designing and improving the performance of ZrC alloy.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Physics, Multidisciplinary
Fangzhou Zhao, Mark E. Turiansky, Audrius Alkauskas, Chris G. Van de Walle
Summary: Trap-assisted Auger-Meitner recombination is highlighted as a dominant nonradiative process in wide-band-gap materials, and a first-principles methodology is presented to determine the rates of this process in semiconductors or insulators due to defects or impurities.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Liying Yang, Tingyu Liu, Jinsong Jiang, Wenqi Song
Summary: The stability of native point defects in Li2O has been investigated taking into account the vibration entropy. The study found that crystal defects can increase the electrical conductivity. Through calculations, defect formation energies, such as vacancies, interstitials, and antisites, were obtained, along with the relationship between defect formation energy and Fermi level, oxygen partial pressure, and temperature. The results suggest that most donors and acceptors exist at deep defect transition levels. The study aims to provide insight for adjusting the main type of defects and guidance for the production and application of lithium oxide.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Hao Xiao, Shuang Zhao, Qingyuan Liu, Yuxin Li, Shijun Zhao, Fengping Luo, Yugang Wang, Qing Huang, Chenxu Wang
Summary: MAX phase materials, with their unique laminated atomic structures, exhibit both metal and ceramic properties, making them promising for advanced nuclear energy systems. The high entropy MAX (HE-MAX) phases, which have received much attention recently, still have unclear point defect properties due to chemical disorder. This study investigated the point defect properties in various HE-MAX phases and single-component M2SnC phases using first-principles calculations. The results provided fundamental insights into the effect of chemical disorder on point defect properties and proposed a new strategy for designing novel HE-MAX phases with better performance in nuclear applications.
Article
Chemistry, Physical
Liying Yang, Tingyu Liu, Jinsong Jiang, Wenqi Song
Summary: This article investigates the effect of sulfur doping on the laser damage threshold of potassium dihydrogen phosphate (KDP) by studying the properties of sulfur substituting for phosphorus doping defects (SP) in KDP crystals with paraelectric (PE) and ferroelectric (PE) phases. The study obtains more accurate defect transition levels by band edge correction and evaluates the defect formation energies with different defect charges. The optical absorption and emission spectra are obtained by considering electron-phonon coupling. The findings suggest that sulfur doping affects the absorption properties of KDP crystals and reduces the laser damage threshold.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Ningjing Luo, Zhufeng Hou, Chensheng Lin, Guo-Liang Chai
Summary: The stable ordered phases of W2C are determined by the attractive interaction of carbon vacancies in the L3-type lattice, while the disordered phase is stabilized by its configuration entropy. The phase transformation between different structures of W2C is facilitated by the migration of carbon atoms through a sequential intralayer mechanism.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Physical
Ruixue Tian, Chaofeng Liu, Guifeng Zhang, Aimin Wu, Man Yao, Hao Huang
Summary: First-principles calculations based on density functional theory were used to systematically investigate the impacts of point defects, including vacancies and antisites, on the Li adsorption and diffusion in monolayer titanium disulfide (TiS2). The results show that defect types strongly influence Li adsorption and diffusion capabilities, with certain defects enhancing adsorption and diffusion rates significantly. This study provides insights for designing high-performance electrode materials for rechargeable batteries.
APPLIED SURFACE SCIENCE
(2021)
Article
Physics, Multidisciplinary
Rong Wang, Baoying Dou, Yifeng Zheng, Su-Huai Wei
Summary: In this study, the structural, electronic, and defect properties of AgInSe2, AgGaSe2, and their alloys were investigated using first-principles calculations. The results suggest that alloy engineering can enhance the power conversion efficiency of the solar cell absorber, and a new buffer layer material is needed for better electron transport in the solar cell.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2022)
Article
Materials Science, Multidisciplinary
Yubi Chen, Mark E. Turiansky, Chris G. Van de Walle
Summary: This study conducted comprehensive investigations on native point defects in beryllium oxide (BeO) using density functional theory. The stability and potential applications of different defects were analyzed, and suitable candidates for quantum defects were identified.
Article
Physics, Applied
Tyler J. Smart, Mingpeng Chen, Andrew C. Grieder, Valentin Urena Baltazar, Frank Bridges, Yat Li, Yuan Ping
Summary: This study uses first-principles calculations to reliably predict electron polaron concentrations in hematite, demonstrating the critical role of synthesis conditions on tuning electron polaron concentrations in both undoped and doped hematite.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Physical
Zhihao Li, Xiucai Sun, Xiaoli Sun, Wan-Jian Yin, Zhongfan Liu
Summary: This study investigated the impact of substrate characteristics on the quality of graphene and found that the crystallographic orientation of the metal substrate, such as Cu (100), is crucial for producing high-quality and superclean graphene. The study also identified that low graphene defect density and high nucleation rate on the Cu(100) facet contribute to the suppression of amorphous carbon formation and facilitate rapid graphene synthesis.
Article
Materials Science, Multidisciplinary
Weijuan Hu, Cong Chen, Qingling Meng, Xiamin Hao, Yizhen Jia, Jinge Wu, Yong Xin, Miao Zhou
Summary: Based on first-principles density functional theory calculations, the structure, stability, and electronic properties of the UN/ZrC interface were investigated. The study provides insight into the effects of particle size and interfacial defects on the stability of dispersed nuclear fuel elements, and offers valuable guidance for the fabrication and implementation of novel nuclear fuels.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Shulong Wen, YiNi Lv, Min Pan, Zheng Huang, Jiaming Wang, Lei Han, Yong Zhao, Huiqiu Deng
Summary: Carbon (C) impurity in industrial-scale tungsten production was studied using first-principles density functional theory. The migration behavior of C atom in tungsten lattice and its influence on defect clustering were investigated. The results showed that C atom prefers to occupy the octahedral interstitial site and can promote the nucleation of vacancy clusters. C atom also causes tungsten lattice distortion and enhances the nucleation rate of self-interstitial atom (SIA) clusters. It is suggested that C impurity inhibits the recovery of Frenkel pairs and weakens the self-repair of tungsten materials under irradiation. These findings contribute to understanding the mechanism of C impurity on defects evolution in W-based materials.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Geochemistry & Geophysics
Xindi Ma, Huicong Du, Ping Lan, Jianhua Chen, Lihong Lan
Summary: The surface structure and electronic properties of impurity defects in talc crystals were studied using density functional theory. The results showed that iron impurities were the most easily formed defects. The addition of impurity atoms weakened covalent bonding and enhanced ionic properties, resulting in increased electrical conductivity.
Review
Chemistry, Physical
Xiaoyu Wu, Yaying Dou, Ruqian Lian, Yizhan Wang, Yingjin Wei
Summary: This review discusses the latest advancements in theoretical studies on cathode and anode materials as well as electrolytes of magnesium ion batteries (MIBs), focusing on their thermodynamic properties, electronic structures, kinetic properties, and their relationship to electrochemical properties. The prospects for the future development of MIBs are also presented.
ENERGY STORAGE MATERIALS
(2022)
Editorial Material
Materials Science, Ceramics
Tatsuki Ohji, Young-Wook Kim, Jingyang Wang, Michael C. Halbig
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Haofei Sun, Cui Zhou, Tiefeng Du, Zhen Wu, Quangang Xian, Luchao Sun, Jing Liu, Jingyang Wang
Summary: This study prepared Al2O3/LuAG DSE ceramics with different solidification rates and found significant differences in microstructures and mechanical properties under different solidification rates. Furthermore, by studying the relationship between rare earth ionic radius, eutectic microstructures, and mechanical properties, it demonstrated the potential to achieve microstructure control and mechanical properties optimization of DSE ceramics by adjusting rare earth elements.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Xianpeng Liang, Zhuojie Shao, Zhen Wu, Jingyang Wang
Summary: SiC nanowire aerogel with ultra-high porosity and multi-level nanostructures has low thermal conductivity and good compressive flexibility, making it a promising high temperature thermal insulation material.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Xirui Lv, Mengkun Yue, Xue Feng, Xiaoyan Li, Yumin Wang, Jiemin Wang, Jie Zhang, Jingyang Wang
Summary: In this study, SiC fiber and Yb2SiO5 composites were processed using the Spark Plasma Sintering (SPS) method. Different types of interfaces were achieved by adjusting the sintering temperature. It was found that the thermal expansion mismatch between Yb2SiO5 and SiC led to high interface stress, and the high temperature and electric field also had an effect on the interface. The study suggests that introducing the Yb2Si2O7-Yb2SiO5 phase can adjust the interfacial parameters and optimize the mechanical properties of the material.
JOURNAL OF ADVANCED CERAMICS
(2022)
Article
Materials Science, Multidisciplinary
Luchao Sun, Xiaomin Ren, Yixiu Luo, Xirui Lv, Jiemin Wang, Yoonsuk Oh, Jingyang Wang
Summary: This study designed a material with excellent CMAS corrosion resistance and revealed the synergistic effects of rare earth elements in improving the corrosion resistance. The results demonstrated the importance of both inert and active elements in maintaining phase stability and reducing corrosion activity.
Article
Materials Science, Multidisciplinary
Zhuojie Shao, Zhen Wu, Luchao Sun, Xianpeng Liang, Zhaoping Luo, Haikun Chen, Junning Li, Jingyang Wang
Summary: Due to advancements of hypersonic vehicles, ultra-high temperature thermal insulation materials are urgently requested. In this study, a novel highly porous high entropy (Zr1/5Hf1/5Nb1/5Ta1/5Ti1/5)C material was developed, which exhibited high porosity, strength, and low thermal conductivity, as well as excellent oxidation resistance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Yin Peng, Zhixin Luo, Haoyu Wang, Tiefeng Du, Jie Zhang, Luchao Sun, Jingyang Wang
Summary: In this study, a novel multi-rare earth disilicate environmental barrier coating was prepared by atmospheric plasma spraying. The crystallization behavior of the coating under different annealing conditions was investigated, and the contribution of multiple rare earth elements to the formation of specific phases was discussed. The results provide fundamental understanding and guidance for the controllable preparation of multi-rare earth disilicate environmental barrier coatings via atmospheric plasma spraying.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Luchao Sun, Yandong Tang, Yang Cui, Tiefeng Du, Cui Zhou, Beiyue Ma, Jingyang Wang
Summary: The effects of low content Al2O3-RE2O3 (RE = Y, Yb, and La)-SiO2/TiN on Si3N4 ceramics were investigated, and it was found that fully dense ceramics could be fabricated by rational sintering additives and methods, with TiN as a secondary additive to promote density. Among all the ceramics, SN-AYS-SPS exhibited the most competitive mechanical properties.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Yun Fan, Qi Wu, Yun Yao, Jiemin Wang, Juanli Zhao, Bin Liu
Summary: This study investigates the temperature-dependent structural and mechanical/thermal property evolution of multicomponent rare-earth zirconates. Molecular dynamics simulations are used to reproduce the experimental results. It is found that with increasing temperature, the polyhedrons deform more, resulting in reduced mechanical properties and thermal conductivities. The multicomponent design at the Zr-site is suggested to be important in the design of thermal barrier coatings using pyrochlores.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Guangheng Zhang, Jie Zhang, Jingyang Wang
Summary: The demand for more powerful aircraft has led to the development of ceramic matrix composites and environmental barrier coatings (EBC). A promising EBC material called ytterbium oxide (Yb2O3) was fabricated through hot pressing and its properties were systematically investigated. The evaluation of its thermal properties provides a baseline for its application on SiCf/SiC or Al2O3f/Al2O3 composites. The material exhibits excellent durability in harsh environments such as water vapor and molten calcium-magnesium-aluminosilicate (CMAS). The thermochemical interactions between ytterbium oxide and CMAS were found to be drastically different from rare-earth silicates due to the absence of silicon oxide. The reaction of ytterbium oxide with CMAS forms a variety of reaction products, including apatite, garnet, and silicocarnotite. The crystallization of garnet and silicocarnotite effectively consumes and solidifies the CMAS melt, preventing further corrosion.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Cui Zhou, Zhaoping Luo, Tiefeng Du, Haofei Sun, Jiemin Wang, Luchao Sun, Jingyang Wang
Summary: This study reports a high-entropy DSE ceramic with outstanding crystallographic texture formation capability. Compared to DSE ceramics containing single rare earth elements, the high-entropy DSE ceramic can obtain single crystal phases within a shorter growth distance, which is significant for microstructure control in DSE processing and the uniformity of mechanical properties throughout the material.
SCRIPTA MATERIALIA
(2022)
Article
Nanoscience & Nanotechnology
Yuxin Li, Yiming Lei, Shuang Zhao, Hao Xiao, Haocheng Liu, Yugang Wang, Yixiu Luo, Jie Zhang, Jingyang Wang, Rodney C. Ewing, Chenxu Wang
Summary: Two high entropy pyrochlores (HEPs), Gd2(Ti0.2Zr0.2Sn0.2Hf0.2Ta0.2)2O7 and Gd2(Ti0.2Zr0.2Sn0.2Hf0.2Nb0.2)2O7, were irradiated with 800 keV Kr2+ ions and observed by in situ transmission electron microscopy (TEM). The order-to-disorder phase transformation from pyrochlore to fluorite structure was observed in these HEPs and Gd2Sn2O7 through selected area electron diffraction (SAED), high angle annular dark field scanning transmission electron microscopy (HAADF-STEM), and energy dispersive spectroscopy (EDS) mapping. Density functional theory (DFT) calculations were used to determine the cation antisite defect (CAD) formation energy and the electron localization function (ELF). Both experimental and calculated results indicate that HEPs have higher resistance to phase transformation and amorphization compared to Gd2Sn2O7.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Multidisciplinary
Xirui Lv, Yiming Lei, Zhao Zhang, Jie Zhang, Jingyang Wang
Summary: High throughput experimentation is used to establish a ternary system with a compositional range of SiO2, Yb2O3, and Ho2O3, and investigate their phase composition and mechanical properties. The chemical stability and thermal expansion compatibility between SiC and RE silicates with different compositions are also validated. The optimized materials for environmental barrier coating and interphase in SiCf/SiC CMC are screened according to the trends and data. This study accelerates the design and screening of promising optimal candidates for RE2O3-SiO2 compounds.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Editorial Material
Materials Science, Ceramics
In-Hyuck Song, Ho Jin Ryu, Jing Yang Wang, Juergen Eckert, Sung-Soo Ryu
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Zilong Xiong, Wenzhuo Xue, Mujun Li, Feihu Tan, Yupeng Chen, Hongyu Yu
Summary: In this study, CBS glass/Al2O3 composites were developed for LTCC applications based on a CaO-B2O3-SiO2 (CBS) glass system with a high boron content. The study revealed that the softening of glass and interfacial reaction between the glass and Al2O3 were the two most important factors affecting LTCC's densification process. Real-time shrinkage rate of LTCC during sintering was successfully simulated, and it was proven that the formation of the CaAl2(BO3)O phase played a significant role in reducing glass viscosity and promoting dense structure formation. The resulting LTCC composite exhibited excellent performance for high-frequency applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Saurabh Kumar Sharma, Vinita Grover, Rakesh Shukla, Abid Hussain, Ambuj Mishra, Pawan Kumar Kulriya
Summary: In this study, the disordering caused by swift heavy ion irradiation in two different compositions of pyrochlore structures was investigated. X-ray diffraction, Raman spectroscopy, and high-resolution transmission electron microscopy were used to analyze the samples before and after irradiation. It was found that both compositions underwent amorphization due to irradiation, with a slower rate observed in Nd1.8Zr2.2O7.1. The irradiation-induced modified track region in Nd1.8Zr2.2O7.1 consisted of defect-rich pyrochlore structure, anion-deficient fluorite structure, and amorphous domains.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Jiabei He, Mengshan Song, Ming Yang, Miaomiao Zhu
Summary: This study investigates the influence of ion irradiation on high-entropy ceramics and finds that irradiation-induced lattice rearrangement can improve the radiation resistance of these ceramics.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yajie Yu, Shi He, Zhengang Zhang, Haihua Chen, Peipeng Jin, Binnian Zhong, Linhui Zhang, Liping Wang, Cheng Lu
Summary: Silicide ceramics, including tantalum disilicide (TaSi2), are known for their exceptional physical properties but are limited in practical applications due to their inherent brittleness at room temperature. In this study, we successfully improved the mechanical properties of TaSi2 ceramics and increased their electrical conductivity by modifying the preparation methods and sintering conditions. These findings provide valuable insights for future applications of TaSi2 and the design of advanced ceramic materials.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Jian Li, Jia Liu, Yongcui Zhang, Wei Sun, Yang Wang, Haitao Wu, Ling Li, Chuanbing Cheng, Yingying Wang, Ke Tan, Futian Liu
Summary: Microstructure design plays a crucial role in regulating the microwave dielectric properties of materials, however, the understanding of frequency temperature stability and related micromechanism remains limited. In this study, a combination of first-principles calculations and experimental observation was used to investigate the correlation among sintering behavior, crystal structure, bonding nature, and microwave dielectric properties of LnPO(4) (Ln = Eu, Pr) ceramics. The research findings systematically clarify the optimized effect and micromechanism of lanthanides on the dielectric properties of monazite ceramics, providing insights into the design and enhancement of microwave dielectric materials.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Wenqian Pan, Xizhen Xia, Wei Zhou, Yang Li
Summary: The study investigates the frictional and wear behaviors of carbon fiber-reinforced SiC ceramic matrix composites with different fiber orientations mating with ceramic balls. The results show that fiber orientation significantly affects the friction and wear properties of the composites. Pads with randomly arranged fibers demonstrate better friction stability and lower wear volume, potentially suitable for bearing material applications. The research also explores the factors influencing the formation of continuous tribo-film and identifies abrasive wear and oxidation wear as the dominant wear mechanisms for the friction pairs.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Sergey Nikolaevich Perevislov, Ilya Evgenievich Arlashkin, Valentina Leonidovna Stolyarova
Summary: This paper describes the synthesis and sintering of MAX phases in the Zr-Al-C system. Different mixtures of initial Zr/Al/C and Zr/Al/ZrC powders were used to synthesize Zr2AlC and Zr3AlC2 MAX phases. The highest content of Zr3AlC2 MAX phase was obtained using a component ratio of 1:1.5:2-51.1 vol.% of Zr/Al/ZrC powders.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Weijia Luo, Xubin Wang, Baiheng Bai, Jianli Qiao, Xingcong Chen, Yongzheng Wen, Jingbo Sun, Lingxia Li, Ji Zhou
Summary: This study successfully establishes the relationship between internal strain and dielectric loss by synthesizing and designing specific structure of tungsten bronze ceramics, and concludes that controlling internal strain can effectively reduce dielectric loss. This research is of great significance for the development of future all-ceramic non-Hermitian devices.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Santanu Mondal, Juan Diego Shiraishi Lombard, Sreenivasulu Gollapudi, Carolina Tallon, Jie-Fang Li, Dwight Viehland
Summary: Ultrafast high-temperature sintering (UHS) is an effective method for rapidly densifying ZrB2 powders. The final grain size increases with longer sintering duration. X-ray diffraction and energy-dispersive spectroscopy show crystalline phase and compositional uniformity in ZrB2 after UHS.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
JiaNan Wang, ZhiQiang Li, YongZheng Zhu, Yao Liang, Yan Cui, HuaLong Tao, Bo Song, Alexander Nikiforov, ZhiHua Zhang
Summary: First-principles calculations were performed to investigate the crystal structure, electronic structure, and ion diffusion of sulfur-doped Li2FeSiO4. The results showed that sulfur doping can improve the electronic conductivity and reduce the energy barrier for ion diffusion.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Xiaodi Dai, Serdar Aydin, Mert Yuecel Yardimci, Gunter Reekmans, Peter Adriaensens, Geert De Schutter
Summary: This study investigates the rheological behavior, solidification process, and nanostructure changes of sodium hydroxide-activated slag (NH-AAS) and sodium silicate-activated slag (SS-AAS) pastes over time. The results show that NH-AAS and SS-AAS release similar heat and reach a similar reaction degree at their initial setting times, but have different gel structures.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yanliang Ji, Simon Becker, Zichen Lu, Alexander Mezhov, Regine von Klitzing, Schmidt Wolfram, Dietmar Stephan
Summary: This study reveals the significant influence of resting time on the rheological properties of cement suspensions, which is closely related to non-absorbed polycarboxylate superplasticizers (PCEs) size variation. Adsorbed PCE during resting tends to bridge particles instead of dispersing them, leading to an increased yield stress.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yifeng Huang, Xin Wang, Yinchang Ma, Xiang Lv, Jiagang Wu
Summary: This study investigates the effect of K/Na ratio on the phase structure, ferroelectric domains, and piezoelectric properties of potassium sodium niobate (KNN)-based ceramics. It reveals that high Na+ content leads to large ferroelectric domains, while high K+ content results in local polarity heterogeneity and distinct dielectric relaxational behavior. The balanced local polarity and stress heterogeneities contribute to improved piezoelectricity.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Zun Xia, Yedong Rong, Hao Li, Ye Dong, Hongbo Yu, Jie Xu, Xiuhui Wang, Jinlong Yang
Summary: This study presents the synthesis of hollow MgAl2O4 particles in situ within porous ceramics, resulting in volume expansion and the formation of a hierarchical pore structure, leading to a significant improvement in compressive strength.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Honglong Wang, Zhiguo Sun, Faming Xia, Chenguang Yang, Xiaoguang Wang, Jintang Li, Linxu Jiang
Summary: In this study, the micro-geometry morphology variation and microstructural transformation mechanism of muscovite crystals under electron beam irradiation were explored. The results revealed the instability of the muscovite lattice under irradiation, as well as the expansion and shrinkage of the lattice with increasing dose. The study also identified changes in chemical structure and other mechanisms involved. These findings are significant for the design of radiation-resistant silicate materials and the manufacturing of electronic components used in the aerospace industry.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)