Article
Geosciences, Multidisciplinary
Norio Shigematsu, You Zhou, Hideki Hyuga, Yu-ichi Yoshizawa, Masanori Kido
Summary: Researchers successfully fabricated dense aggregates of albite using hot pressing by solid-state sintering method, which is essential for studying the internal structure of the Earth and phenomena in the crust in laboratories.
PROGRESS IN EARTH AND PLANETARY SCIENCE
(2022)
Article
Materials Science, Ceramics
Cem E. Ozbilgin, Kiyoshi Kobayashi, Shinji Tamura, Nobuhito Imanaka, Tohru S. Suzuki
Summary: The ionic conduction of multiply charged ions is beneficial for energy storage and sensor applications, but their low mobility poses a significant obstacle. Crystallographic alignment of anisotropic grains can greatly improve the performance of ceramic electrolytes and enhance ionic conductivity, highlighting the importance of grain orientation in materials processing.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Zixuan Qin, Wentao Xu, Junrong Ling, Tinghai Mu, Youfu Zhou
Summary: High-density SiC ceramics were successfully prepared using a low-toxicity gel-casting system and modified sintering aids. The study investigated the effects of processing parameters on material properties and obtained a sample with optimal mechanical properties.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Justyna Zygmuntowicz, Marcin Wachowski, Dominika Zielant, Waldemar Kaszuwara
Summary: The study investigated the impact of nickel and slurry content on the microstructure and physical properties of composites; high-density ZrO2-Ni composites were fabricated using centrifugal slip casting in a magnetic field technique, with a relative density of 99% achieved for composites containing 50% solid content; a model for shaping the microstructure of composites with a longitudinal section was proposed based on the results, enhancing understanding of creating microstructures in materials fabricated using this method.
Article
Materials Science, Ceramics
Jingkun Xu, Zetan Liu, Zhipeng Xie, Shan He, Xiaoqing Xi
Summary: This study successfully developed the electric field-assisted hot pressing (FAHP) technique to achieve flash sintering, effectively reducing grain sizes, and proposed a method to measure the current density limit for complete densification of 3YSZ.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Jiahao Yang, Ruiqi Ma, Mingming Zhu, Yilian Xiong, Jiahui Shi, Xiaohong Li, Haolin Li, Jianjun Chen
Summary: This study successfully prepared a novel SiCnf/SiC composite and investigated its mechanical properties. The results showed that the SiCnf/SiC composite prepared under specific hot-pressing temperature and SiCnf mass fraction exhibited the highest flexural strength and fracture toughness. Scanning electron microscopy revealed the phenomena of nanofibers pull out, nanofibers bridging, and crack deflection, which contributed to the strengthening and toughening of the composite. Furthermore, although the relative density of the composite increased with the sintering temperature, the further coarsening of the composite grains resulted in a deterioration of the mechanical properties.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
E. Arastoo, B. Movahedi, Z. Yousefian, M. Milani
Summary: This study successfully obtained high-density green pieces from alpha-alumina/amorphous alumina core-shell nano composite powder using the slip-casting process and sintered them under vacuum conditions by pressureless sintering method. The application of the amorphous phase as a shell in the initial powder aided in sintering and reduced sintering temperature, leading to a relative density of 99.5% and transmission of 72% in the IR region at 1300 degrees C. The slip-casting method resulted in high-green density and high-final density.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Ceramics
Masoumeh Dehghanzadeh Alvari, Mahdi Ghassemi Kakroudi, Behnam Salahimehr, Reza Alaghmandfard, Mehdi Shahedi Asl, Mohsen Mohammadi
Summary: The ZrB2-20 vol% SiC-5 vol% B4C composite prepared by hot pressing at 1850 degrees C showed high density, good mechanical properties, and distinct oxidation behavior with different layers formed during the oxidation process.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Xiumin Yao, Xiaojie Wang, Xuejian Liu, Zhengren Huang
Summary: In this study, Mesocarbon microbead-SiC (MCMB-SiC) composites with 30 wt% MCMBs were densified using a two-step hot pressing method. The pressing schedule and temperature were found to significantly affect the densification process, with lower temperatures followed by higher temperatures leading to improved relative density. The results demonstrated the effectiveness of the two-step hot pressing method in producing dense C-SiC composites with high C content.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Shota Azuma, Tetsuo Uchikoshi, Katsumi Yoshida, Tohru S. Suzuki
Summary: This study presents a method for preparing highly structure-controlled B4C ceramics via strong magnetic field-assisted slip casting, with the removal of oxidic impurities by ethanol treatment before sintering resulting in significantly increased bending strength of the ceramic specimens.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Xiaowei Yang, Jian Chen, Rong Xing, Aziz Babapoor
Summary: This study investigated the effects of hBN additive on the mechanical properties and microstructure of TiB2-SiC composites, showing that hBN can contribute to grain refinement and improve flexural strength. The highest Vickers hardness and flexural strength were achieved for the sample with 7 vol% hBN.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Xiaokai Liu, Benshuang Sun, Xueyun Zeng, Zhongheng Zuo, Wenyu Zhang, Zhijun Wang, Chaofei Liu, Lijia Chen, Yongchun Shu, Yang Liu, Jilin He
Summary: High solid content and low viscosity slurry of aluminum-doped zinc oxide (AZO) and zinc oxide (ZnO) were prepared by milling. A new pressure slip casting technology was used to produce green compacts. The activation energies for densification and grain growth of AZO and ZnO were calculated by the MSC method. The two-step sintering method was used to optimize the sintering process of AZO targets, resulting in targets with a relative density of 99.8% and a grain size of 3.89 μm.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
M. Tavakoli, B. Movahedi, A. Alhaji
Summary: Magnesium fluoride (MgF2) nanoparticles were successfully synthesized through the fluoridation method, and the influences of parameters such as pH, concentration ratio, F:Mg mole ratio, washing method, and calcination temperature were investigated. The results showed that the morphology of MgF2 nanoparticles changed from rod to spherical shape as the pH value increased from 1 to 9.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Yanyan Qin, Dewei Ni, Bowen Chen, Jun Lu, Feiyan Cai, Xuegang Zou, Le Gao, Xiangyu Zhang, Yusheng Ding, Shaoming Dong
Summary: This study proposes a novel method to fabricate dense Ta0.2Hf0.8C ceramics at low temperature using Si as a sintering aid. Reactive hot-pressing was used to densify Ta0.2Hf0.8C at 1700 degrees C, resulting in the formation of SiC. The microstructure evolution mechanisms and the effect of silicon content on the densification and mechanical properties of the ceramics were investigated. The results show that the Ta0.2Hf0.8C-SiC ceramics have a low apparent porosity of 0.5% and high bending strength and fracture toughness of 637 MPa and 6.7 MPa m(1/2), respectively, when the silicon content is 8 wt.%. This work provides new insights for the low-temperature densification of TaxHf1-xC and other high-performance ultrahigh temperature ceramics.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Allan N. Kolek, Sophia R. Cooper, Kristopher D. Behler, Anindya Ghoshal, Tucker W. Moore, Andrew J. Wright, Victoria L. Blair, Richard F. Reidy, Marcus L. Young, Andrey A. Voevodin, Samir M. Aouadi
Summary: This study investigates the effects of processing conditions on the fabrication of dense, ablation-resistant HfC-SiC composites. The composite ceramics exhibited high relative density, fine microstructure, and good hardness. The research provides valuable insights into the development of effective thermal insulation materials.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Dmytro Demirskyi, Tohru S. Suzuki, Kyosuke Yoshimi, Oleg O. Vasylkiv
Summary: This study investigated the densification, microstructure evolution, and high-temperature properties of bulk lanthanum hexaboride (LaB6). Spark-plasma sintering was used to consolidate LaB6, and it was observed that the toughness and strength decreased at high temperatures.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Nana Hashimoto, Ken-ichi Ikeda, Seiji Miura, Koji Morita, Tohru S. Suzuki, Yoshio Sakka
Summary: This study investigated the effect of constraint conditions on kink formation in Ti3SiC2 polycrystals with controlled texture and porosity. The results showed that the constraint factor caused by neighboring grains affects crystal rotation, leading to the formation of kink boundaries with different rotation angles.
MATERIALS TRANSACTIONS
(2022)
Article
Metallurgy & Metallurgical Engineering
M. A. Grigoroscuta, G. Aldica, M. Burdusel, V Sandu, A. Kuncser, I Pasuk, A. M. Ionescu, T. S. Suzuki, O. Vasylkiv, P. Badica
Summary: The paper presents the fabrication and characterization of textured (001) MgB2 using high-energy ultra-sonication and slip casting methods. The study reveals a high degree of orientation in the material and unexpected preferred orientation in the MgO secondary phase. The influence of the oriented microstructure on the superconducting characteristics is assessed.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Ceramics
D. Demirskyi, T. Nishimura, T. S. Suzuki, K. Yoshimi, O. Vasylkiv
Summary: During spark plasma sintering, SiB6 decomposes into cubic silicon carbide and boron carbide. The HfB2-SiB6 composite material has better hardness, toughness, and strength compared to HfB2-SiC ceramics. The strength decreases with increasing temperature under high-temperature conditions.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Nanoscience & Nanotechnology
D. Demirskyi, H. Sepehri-Amin, T. S. Suzuki, K. Yoshimi, O. Vasylkiv
Summary: The temperature dependence of flexural strength in sintered boron carbide was investigated. At temperatures above 2000 degrees C, B4C displayed remarkably high flexural strength and a transition from brittle fracture to plastic deformation. Scanning transmission electron microscopy analysis revealed that the observed plasticity in B4C at high temperatures originated from microstructural amorphization.
SCRIPTA MATERIALIA
(2022)
Article
Materials Science, Ceramics
Ryosuke S. S. Maki, Fajar Muhammad, Jelena Maletaskic, Anna Gubarevich, Katsumi Yoshida, Toyohiko Yano, Tohru S. Suzuki, Tetsuo Uchikoshi
Summary: This paper describes the synthesis of B4C/carbon nanotube (CNT) composite by hot-pressing and investigates the effectiveness of CNT addition, additive amount, and orientation on thermal shock resistance. The results show that CNT addition improves the residual bending strength and thermal stress fracture-resistance, and leads to anisotropic mechanical and thermal properties.
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2022)
Article
Materials Science, Ceramics
Dmytro Demirskyi, Tohru S. Suzuki, Kyosuke Yoshimi, Oleg Vasylkiv
Summary: This study reports the formation of a ceramic composite with a hierarchical superstructure consisting of boride phases. The composite exhibited extremely high hardness and strength, as well as excellent elastic fracture properties.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Dmytro Demirskyi, T. Nishimura, T. S. Suzuki, K. Yoshimi, Oleg Vasylkiv
Summary: In this study, the consolidation, solid-solution formation, and high-temperature properties of carbides in the Ta-Nb-C system were investigated. It was found that the tantalum niobium carbide exhibited better consolidation performance and smaller grain size at high temperatures. In addition, the strength of the material decreased linearly with the increase of NbC content.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Tohru S. Suzuki, Kiyoshi Kobayashi, Tetsuo Uchikoshi
Summary: This study achieved c-axis-oriented aluminum nitride (AlN) bulk ceramics by controlling the crystallographic orientation using slip casting in a rotating high magnetic field. The thermal conductivity of AlN was improved due to this orientation.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Lihong Liu, Koji Morita, Tohru S. S. Suzuki
Summary: This study investigates the effect of the thickness of (0001) textured Al2O3 layer on the optical and mechanical properties of MgAl2O4/Al2O3 transparent laminated composite. The results show that the transmittance efficiency and hardness of the composite are sensitive to the thickness of the textured Al2O3 layer. By controlling both the thickness and the texture structure of the Al2O3 layer, the composite achieves excellent optical and mechanical properties.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Esmaeil Adabifiroozjaei, Ebad Rastkerdar, Yoshihiro Nemoto, Yoshiko Nakayama, Yuki Nishimiya, Marco Fronzi, Yin Yao, Minh Triet Nguyen, Leopoldo Molina-Luna, Tohru S. S. Suzuki
Summary: In this study, in-situ biasing/heating scanning transmission electron microscopy was used to comprehensively study the Al-amorphous SiO2-SiC interface at atomic scale. The investigation includes electrical, chemical, and structural analysis at different temperatures (25-600 degrees C). The results show significant changes in electrical, chemical, and microstructural features of the interface at around 500 degrees C. It is found that amorphous SiO2 dissolves in Al, forming alpha-Al2O3 and Si, while elemental interdiffusion occurs between Al and SiC, resulting in the formation of Al4C3.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Satoshi Koyasu, Hiroki Makino, Naoki Tarutani, Tohru S. Suzuki, Tetsuo Uchikoshi, Takamasa Ishigaki
Summary: An oriented ZnO seed layer composed of hexagonal plate-like ZnO particles was prepared by dip-coating, and an oriented ZnO rod film was then synthesized by growing this seed layer using a hydrothermal synthesis method. Homogeneous ZnO rod arrays were successfully synthesized by optimizing the concentration of the precursor and the hydrothermal treatment time. The uniformity of the rod arrays was improved by applying a strong magnetic field (12 T) during hydrothermal treatment.
Editorial Material
Nanoscience & Nanotechnology
D. Demirskyi, K. Yoshimi, T. S. Suzuki, O. Vasylkiv
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Multidisciplinary
Mehdi Estili, Shoichi Matsuda, Lulu Jia, Nobuyuki Sakai, Renzhi Ma, Tohru S. Suzuki, Kohei Uosaki
Summary: The effectiveness of multiwalled carbon nanotubes (MWCNTs) in enhancing the suitability of MXenes for energy-related applications is explored. The control over the structure of MXene-based macrostructures by individually dispersed MWCNTs is investigated. The results show that the composition and surface structure of MXene films are significantly altered by the presence of MWCNTs. The stacking order of MXenes is preserved up to 30 wt% MWCNTs, but disrupted at 40 wt%. The membranes with MWCNTs exhibit improved Li-ion transport mechanisms and properties. A high rating of 8 is given for the importance of this research.
Article
Materials Science, Ceramics
Aunsaya Eksatit, Kento Ishii, Kiyoshi Kobayashi, Thi Kim Ngan Nguyen, Koji Morita, Tohru S. Suzuki, Tetsuo Uchikoshi
Summary: A dual-phase membrane consisting of 8YSZ and 316L stainless steel was fabricated for oxygen separation. The membrane achieved a good percolation structure and exhibited reasonably good oxygen permeation flux at 900°C. The use of silver paste improved the oxygen exchange rate.
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
(2023)
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)
