Article
Chemistry, Physical
Chunlei Yan, Yaoqiang Li, Hao Cheng, Zaoming Wu, Fangming Liu, Rongjun Liu
Summary: C-f/SiC and C-f/ZrC-SiC composites fabricated via a novel combined process have lower open porosity but poorer mechanical properties. The degradation of matrix strength caused by large SiC particles and the presence of higher thermal residual stress due to higher processing temperature and larger CTE differences are the main factors influencing the mechanical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Hao Luo, Rui-Ying Luo, Lian-Yi Wang, Peng Huang, Guang-Yuan Cui, Jia-Qi Song
Summary: SiC/SiC composites prepared through precursor infiltration and pyrolysis (PIP) and chemical vapor infiltration (CVI) exhibit different microstructures and mechanical properties. PIP composites showed cracks and amorphous crystal structure, while CVI composites had tightly bonded matrix without cracks and high crystallinity. After heat treatment, PIP composites experienced significant decrease in bending strength and modulus, while CVI composites maintained good mechanical properties.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Jingxin Li, Yongsheng Liu, Jie Chen, Yejie Cao, Jian Chen, Ning Dong, Yu Pan
Summary: The introduction of heat conduction networks benefits the densification of composites, but channels in the thickness direction disrupt the continuity, resulting in defects. With the increase in volume fraction of heat conduction channels, the strengthening effect and the impact of defects compete with each other, affecting the mechanical properties. Additionally, the thermal conductivity in the thickness direction increases with the volume fraction of pitch-based carbon fibers.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Weiwei Zhang, Shibo Li, Shuang Wu, Boxiang Yao, Shukai Fan, Guoping Bei, Wenbo Yu, Yang Zhou, Ying Wu, Sun-An Ding
Summary: Novel MoAlB composites reinforced with SiC have been prepared and characterized. The 5 vol% SiC/MoAlB composite exhibited improved mechanical properties and enhanced oxidation resistance. The formation of a dense and continuous scale composed of Al2O3 and SiO2 contributed to the improved oxidation resistance.
JOURNAL OF ADVANCED CERAMICS
(2022)
Article
Materials Science, Ceramics
Kazuya Shimoda, Tatsuya Hinoki
Summary: BN-nanoparticle-containing SiC-matrix-based composites without a fiber/matrix interface were fabricated by SPS. The mechanical properties of the composites were investigated and the composites with a BN nanoparticle content of 50 vol.% showed quasiductile fracture behavior. The composites also exhibited high strength and bending, proportional limit stress, and ultimate tensile strength values under ambient conditions.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Y. H. Chen, X. Y. Gao, K. B. Nie, Y. N. Li, K. K. Deng
Summary: By comparing the effects of different sizes of SiC on composites, this study found that SiC nanowires can effectively hinder grain growth, and an increased number of SiC particles can promote recrystallization, thereby improving the mechanical properties of the composites.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Ceramics
Rosa Maria da Rocha, Christian Frederico Von Dollinger, Francisco Cristovao Lourenco de Melo, Frank Ferrer Sene, Miriam Kasumi Hwang Yassuda
Summary: This study aimed to obtain a multiphase composite of (Zr,Ti)B2-SiC through pressureless sintering. The addition of TiO2 affected solid solution formation, densification, microstructure, and mechanical properties. 2.0 wt% TiO2 was added to ZrB2-SiC composites with 10-30 vol% SiC and sintered at 2050 degrees C. The composites doped with TiO2 exhibited improved fracture toughness but slightly lower Vickers hardness compared to composites without TiO2 addition.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Xinghua Ji, Shufeng Li, Xin Zhang, Lei Liu, Shaolong Li, Lina Gao, Xin Li, Shaodi Wang
Summary: The problems of SiC particles reinforced AlSi10Mg composites prepared by traditional casting method can be improved by powder metallurgy. This study analyzed the influence of SiC particle size and content on the properties of SiC/AlSi10Mg composites. The obtained composites showed a dense microstructure without interfacial reaction phase. The strength of SiC/AlSi10Mg increased with the increase of nm-SiC content, while the strength hardly changed with the increase of μm-SiC content. The deformation between μm-SiC and AlSi10Mg matrix was not coordinated, leading to interface cracking or μm-SiC fracture.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Rong-zhen Liu, Wen-wei Gu, Yu Yang, Yuan Lu, Hong-bin Tan, Jian-feng Yang
Summary: Reaction-bonded B4C-SiC composites show promising potential for advanced technological applications. The microstructure evolution mechanism of these composites was investigated by fabricating B4C-SiC composites through Si-melt infiltration. The mechanical properties, microstructure, and phase evolution were found to be influenced by sintering time and B4C content, with increasing temperature and time leading to reduced unreacted B4C and improved hardness.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2021)
Article
Materials Science, Ceramics
Jinhao Jia, Cong Li, Qiang Chen, Shuxin Bai, Jin Chang, Degan Xiong, Mingqi Gao, Shun Li, Jin Xiao
Summary: 3D C-f/SiC-Al composites were fabricated by infiltrating liquid Al-Si alloy into porous 3D C-f/SiC preform. Increasing the silicon carbide volume fraction resulted in lower thermal conductivity and thermal expansion coefficient, and the composites exhibited significant anisotropy.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Kazuya Shimoda, Hideki Kakisawa
Summary: This study presents a new method of producing high-quality SiC/SiC ceramic-matrix composites. A SiC slurry with binders was used to impregnate SiC fibers and form green sheets without fibers, which were then sandwiched between two SiC green sheets and warm-pressed. The resulting composites exhibited excellent bending strength and tensile properties due to the controllable sheet thickness and smoother fiber bundles of the sandwich prepreg sheets.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Xiao Han, Xihui Chen, Junjie Ding, Weijing Wu, Zhigang Sun, Yingdong Song
Summary: The study showed that high temperature treatment results in a decrease in interfacial shear strength and tensile strength of Cansas-II SiC/PyC/CVI SiC mini-composites. However, the protective effect of the PyC interface and CVI SiC matrix on the fibers helps limit the decline in strength of the composites after high temperature treatment.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Yifan Yang, Tianbin Zhu, Ning Liao, Yawei Li, Xiong Liang, Zhipeng Xie, Shaobai Sang, Jinning Dai
Summary: This study successfully fabricated high performance SiC-based composites using oscillatory pressure assisted sintering (OPS) and 0.5 wt% graphene nanoplatelets (GNPs) as reinforced agents. The relative density and mean grain size of the composites increased as the sintering temperature increased. The SiC-GNPs composites fabricated by OPS showed improved mechanical properties compared to data obtained by other sintering methods. The crucial toughening mechanisms of crack deflection, crack branching, crack bridging, and GNPs bridging were also confirmed.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Running Wang, Jiaping Zhang, Bing Liu, Jie Fei, Qiangang Fu
Summary: By introducing a tailored SiC-C interphase, the carbon fiber can be effectively protected, improving the mechanical and ablation properties of leading edge shaped C/C-ZrC-SiC composites.
Article
Materials Science, Multidisciplinary
Jing Yang, Ce Zheng, Shanshan Xu, Chong Wei, Cheng Zhang, Yichun Bi, Xiaoqiang Li
Summary: In this study, the radiation-induced microstructure evolution of M55J and T300 carbon fibers in C/SiC composites was investigated. Both carbon fibers exhibited axial shrinkage after irradiation, with M55J fibers showing slightly lower shrinkage compared to T300 fibers. Detailed microstructure characterization revealed disruptions in the graphite structure of both carbon fibers due to ion irradiation. The ordering degree of T300 fibers increased at low doses and decreased at higher doses, and possible mechanisms for the healing process in T300 fibers were discussed.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Multidisciplinary
Fenghao Yang, Guangmin Hu, Haoyuan He, Maozhong Yi, Yicheng Ge, Liping Ran, Ke Peng
JOURNAL OF MATERIALS SCIENCE
(2019)
Article
Chemistry, Physical
Fenghao Yang, Wen Liu, Maozhong Yi, Liping Ran, Yicheng Ge, Ke Peng
Article
Materials Science, Multidisciplinary
Huang Wu, Maozhong Yi, Yicheng Ge, Ke Peng, Liping Ran
Article
Metallurgy & Metallurgical Engineering
Li-ping Ran, Fei Rao, Ke Peng, Huan Yin, Mao-zhong Yi
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2019)
Article
Materials Science, Ceramics
Fuhai Liu, Maozhong Yi, Liping Ran, Yicheng Ge, Ke Peng
Summary: This study prepared a low-density carbon/carbon (C/C) composite/silane coupling agent/hexagonal boron nitride (h-BN) hybrid reinforcement by grafting polyethyleneimine (PEI)-encapsulated modified h-BN fillers onto a carbon fiber surface using 3-aminopropyltriethoxysilane (APS). The results showed that the addition of h-BN can enhance the interfacial bond of fiber/matrix in the C/C-BN composites, while weakening the impact toughness. When the h-BN content in the C/C-BN composite is 10%, the ILSS of the composite was 15.6% higher compared to the C/C composites, but excessive h-BN content can lead to a loose interface and a decrease in shear strength.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Fuhai Liu, Maozhong Yi, Liping Ran, Yicheng Ge, Ke Peng
Summary: In this study, C/C-BN(P) composites were successfully prepared by the combined methods of SI and CVI, exhibiting improved tribological behavior attributed to the combined effect of SI and CVI on the microstructure and mechanical properties. Additionally, the excellent reinforcement of C/C-BN(P) composites can significantly reduce the friction coefficient and wear loss, making them promising materials for anti-friction and wear-resistant applications.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Fuhai Liu, Maozhong Yi, Liping Ran, Yicheng Ge, Zhe Zhou, Ke Peng
Summary: In this study, 2.5D carbon fiber reinforced pyrocarbon matrix composites with a BN interphase (Cf/BN/PyC) were prepared using chemical vapor infiltration. The research found that the crystalline skin of Cf, the infiltration process of pyrocarbon, and the axial residual thermal stress are the main factors influencing the formation of the BN interphase. Understanding the influence of heat treatment on the atomic-domain orientation change and structural evolution during the preparation of BN interphase provides an effective way to modify the preparation of interphase with low fracture energy.
SURFACES AND INTERFACES
(2021)
Article
Materials Science, Ceramics
Yao Ning, Fuhai Liu, Liping Ran, Ke Peng, Yicheng Ge, Maozhong Yi
Summary: This study compared the oxidation behavior of C/C-BN composites and C-f/BN/PyC composites with different structures for pyrolytic carbon (PyC) and boron nitride (BN). The C/C-BN composites showed a different pore structure due to the formation of nodules comprising h-BN particles, resulting in higher oxidation resistance and larger activation energy. The oxidation mechanism was more dependent on pore structure than on BN structure or content.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Fuhai Liu, Maozhong Yi, Liping Ran, Yicheng Ge, Zhe Zhou, Ke Peng
Summary: In this study, C/C-BN-SiC composite materials with various h-BN/SiC ratios were investigated for their kinetic characteristics and oxidation behavior in the temperature range of 600 to 1300 degrees Celsius. The optimal h-BN/SiC ratio demonstrated a balance between thermal stability and fluidity, providing high thermal stability, low oxygen permeability, and the ability to seal defects as an oxygen diffusion barrier.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Zhenxiao Tang, Maozhong Yi, Qiuling Xiang, Yuhui Du, Ke Peng
Summary: An improved high-solid-loading slurry impregnation process was developed to efficiently introduce HfB2 particles into a low-density C/C preform, followed by precursor infiltration and pyrolysis process for densification to obtain a C/C-HfB2-SiC composite. Microstructure characterization showed uniform distribution of HfB2 particles and good densification of the composite material, resulting in improved bending strength and non-brittle fracture behavior.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Zhenxiao Tang, Maozhong Yi, Huan Yin, Yuhui Du, Huang Wu, Ke Peng
Summary: A C/C-ZrC-SiC composite with excellent ablation properties was successfully prepared by high-solid-loading slurry impregnation combined with polymer infiltration and pyrolysis. The excellent performance of the composite is attributed to the protection of the matrix by a three-layered oxide scale consisting of ZrO2/SiO2-rich/ZrO2-SiO2.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Zhenxiao Tang, Maozhong Yi, Huang Wu, Yuanming Zhou, Ruizhi Liu, Jie Jiang, Ke Peng
Summary: In this study, a SiC coating was successfully prepared on a C/C-SiC composite using slurry painting combined with a chemical vapor reaction process to enhance its oxidation resistance. The presence of residual silicon in the coating promoted the formation of a complete SiO2 glass layer in the initial oxidation stage, but also accelerated the failure of the coating. However, due to the presence of a large number of SiC ceramics in the composite, the oxidation weight loss rate of the coating sample after coating failure was reduced.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Zhen-xiao Tang, Mao-zhong Yi, Yuan-ming Zhou, Rui-zhi Liu, Ke Peng
Summary: A three-dimensional orthogonal woven C/C-SiC composite was prepared by slurry impregnation, precursor infiltration, and pyrolysis. The composite exhibited excellent mechanical properties and ablation performance. The passive oxidation of SiC and pitting caused by SiO2 contributed to the good ablation performance.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Fuhai Liu, Maozhong Yi, Liping Ran, Yicheng Ge, Ke Peng
Summary: 2.5D carbon fiber-reinforced carbon and boron nitride dual matrix composites were successfully prepared by a combined process, showing that the content of h-BN fillers has a significant impact on the microstructure and mechanical properties of the composites.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Ceramics
Dan Zhao, Yi Feng, Zhipeng Pi, Fan Zhang
Summary: Phase equilibria in the ZrO2-GdO1.5-TaO2.5 (ZGTO) system were experimentally investigated, and the differences between ZGTO and the existing ZrO2-YO1.5-TaO2.5 (ZYTO) were discussed. The study is useful for thermodynamic assessment of ZGTO and can guide the design of novel thermal barrier coatings materials.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yutaka Ohya, Wingki Mey Hendra, Chika Takai-Yamashita, Takayuki Ban
Summary: Diffusion couples of rutile and corundum single crystals were prepared and examined to study the solid solution and precipitation of corundum in rutile during cooling. Different precipitation forms of corundum were observed under different cooling conditions.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Jiaming Zhan, Yunfa Guo, Hao Wang
Summary: This study systematically investigates the mechanical behaviors of calcium fluoride in humid environments. The effects of water on the deformation and plastic enhancement of CaF2 under indentation are explored through microindentation experiments, atomic simulations, and Raman spectroscopy measurement.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Hangfeng Zhang, Henry Giddens, Theo Graves Saunders, Matteo Palma, Isaac Abrahams, Haixue Yan, Yang Hao
Summary: The relationship between low and high frequency tunabilities in tin substituted barium titanate ceramics was investigated. It was found that there are differences in tunabilities at different frequencies due to the different activities of larger ferroelectric domains and polar nanoclusters.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Kaibiao Xi, Jiacheng Liu, Beibei Song, Huarong Cheng, Yihao Li, Xiaole Yu, Mupeng Zheng, Mankang Zhu, Yudong Hou
Summary: Composite modulation in the superparaelectric state of the BTBZ-CT system is proposed as an effective strategy to achieve both NTCC and excellent energy storage performance in dielectric ceramics. The addition of BZ and CT to BT ferroelectrics can move the SPE state to the normal use temperature zone, resulting in enhanced NTCC characteristics and energy storage performance. Furthermore, intentional precipitation of CT at grain boundaries can refine the grain size, increase the bandgap, and strengthen the local electric field distribution, thereby enhancing the breakdown electric field.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Hamed Salimkhani, Lovro Fulanovic, Till Froemling
Summary: The demand for robust multilayer ceramic capacitors with high-temperature and high-power capabilities is increasing rapidly. However, cost-effective production is a challenge. This study investigates the use of Na0.5Bi0.5TiO3-based materials as promising lead-free options. By adding sintering aids, the sintering temperature of Na0.5Bi0.5TiO3-BaTiO3-CaZrO3-BiAlO3 solid solutions was successfully reduced to 975 degrees C, suitable for co-sintering with Cu electrodes without adverse effects on capacitor properties.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Mingxing Li, Ran Mo, Zeshui Xu, Jie Zhou, Conglin Zhang, Xuefeng Cui, Fang Ye, Laifei Cheng, Ralf Riedel
Summary: Polymer infiltration and pyrolysis is an effective method for preparing ceramic matrix composites. The transformation of polymer to ceramic during the process affects the residual stress and interface behavior in the composites.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yan Kang, Lin Chen, Chang-Jiu Li, Guan-Jun Yang
Summary: A novel abradable seal coating with low hardness and high bonding strength was successfully designed and prepared. This coating has significantly higher abradability and erosion resistance compared to metal-based coatings, and can retain excellent abradability and have a long lifetime during service.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Qingzhong Song, Xiangdong Zha, Ming Gao, Yingche Ma
Summary: This study analyzes the influence of calcia refractory purity on the properties of calcia crucibles. Higher purity calcia results in well-developed grains and improved hydration resistance, leading to better high-temperature strength and thermal shock resistance. In contrast, lower purity calcia crucibles exhibit inferior properties. Therefore, high-purity calcia is considered a potential refractory for manufacturing oxide crucibles.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Sehreish Abrar, Faisal Nazeer, Zhuang Ma, Ling Liu, Abdul Malik, Mustafa Kamal, Abdullah G. Al-Sehemi
Summary: To raise the operating temperature of Si-based ceramic matrix composites (CMCs), researchers have applied thermal/environmental barrier coating (T/EBCs) materials, typically rare earth silicates. However, the high thermal conductivity and the mismatch of thermal expansion have been major challenges in developing new materials that can offer thermal insulation and environmental protection to CMCs. In this study, entropy engineering was used to create a multicomponent equi-atomic single-phase pyro silicate with extremely low thermal conductivity and enhanced water vapor corrosion resistance. The research findings show the potential of high entropy disilicates in achieving ultra-low thermal conductivity and low weight loss in corrosive environments.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Zi-bo Niu, Daxin Li, Dechang Jia, Zhihua Yang, Kunpeng Lin, Paolo Colombo, Ralf Riedel, Yu Zhou
Summary: In this study, SiBCN ceramics with a special structure were prepared to improve the oxidation resistance. The effect of the structure on oxidation behavior and kinetics was investigated, revealing that the special structure can effectively inhibit heterogeneous oxidation and enhance the oxide layer composition.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Melike Donmez, Metehan Erdogan, Cihangir Duran
Summary: The limited densification of CeO2 ceramics was improved by using an anorthite-based glass, resulting in high dielectric constant and quality factor with minimum dielectric loss. The CeO2-(anorthite-based) glass ceramic showed promising results in terms of low temperature densification and microwave properties.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
S. Rahmati, R. G. A. Veiga, J. Mostaghimi, T. Coyle, A. Dolatabadi
Summary: This study provides an atomic-scale description of the high-velocity impact of alpha-Al2O3 particles onto an alpha-Al2O3 substrate during Aerosol Deposition (AD). The results suggest that the crystal orientation plays a crucial role in both plasticity and damage of the nanoparticles. Impact velocity has a direct correlation with plasticity and fragmentation, but adhesion efficiency has only a marginal increase. The crucial element lies in the substrate's surface alterations caused by the fragments left on the substrate after impact.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Bo-Wen Chen, Yan-Mei Kan, De-Wei Ni, Chun-Jing Liao, Hong-Da Wang, Yu-Sheng Ding, Shao-Ming Dong
Summary: This study characterized the long-term and repeated ablation properties of modified Cf/HfC-SiC composites with YB4-Al2O3-Si3N4 under an air plasma torch. The structural stability and viscosity of the oxide layer were found to affect the ablation resistance of the composites. By forming nano c-HfO2 grains and high-viscosity Al-Si-Y-O glassy phase, the structural stability of the oxide layer was improved, resulting in enhanced ablation resistance. However, the oxidation of Si3N4 led to the formation of NO, NO2, and excessive SiO2 glassy phase, which resulted in a porous structure and reduced the viscosity of the oxide layer. Therefore, the addition of Si3N4 decreased the ablation resistance of the composites.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yongxing Wei, Huawei Zhang, Siyuan Dong, Changqing Jin, Chenxing Bai, Junle Dai, Zengzhe Xi, Zhonghua Dai, Zengyun Jian, Li Jin
Summary: In this study, solid solutions of xBi(Ni1/2Hf1/2)O-3-(1 - x)PbTiO3 (xBNH-PT) were synthesized to investigate their phase boundary behaviors and physical properties. The presence of a tetragonal-pseudocubic phase boundary and a spontaneous ferroelectric-relaxor transition at specific compositions were confirmed. The introduction of a tetragonal-pseudocubic phase boundary improved the piezoelectric properties and suppressed the spontaneous ferroelectric-relaxor transition.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)