Journal of the American Ceramic Society最新文献

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The joys and jitters of high-temperature calorimetry 高温量热法的欢乐与不安
IF 3.5 3区 材料科学
Journal of the American Ceramic Society Pub Date : 2025-02-17 DOI: 10.1111/jace.20381
Manuel Scharrer, Laura Bonatti, Tullio Geraci, Sergey V. Ushakov, Juraj Majzlan, Michael Bustamante, Hiroshi Kojitani, Xiaofeng Guo, Hongwu Xu, Lei Zhang, Kristina Lilova, Shmuel Hayun, Tamilarasan Subramani, Alexandra Navrotsky
{"title":"The joys and jitters of high-temperature calorimetry","authors":"Manuel Scharrer,&nbsp;Laura Bonatti,&nbsp;Tullio Geraci,&nbsp;Sergey V. Ushakov,&nbsp;Juraj Majzlan,&nbsp;Michael Bustamante,&nbsp;Hiroshi Kojitani,&nbsp;Xiaofeng Guo,&nbsp;Hongwu Xu,&nbsp;Lei Zhang,&nbsp;Kristina Lilova,&nbsp;Shmuel Hayun,&nbsp;Tamilarasan Subramani,&nbsp;Alexandra Navrotsky","doi":"10.1111/jace.20381","DOIUrl":"https://doi.org/10.1111/jace.20381","url":null,"abstract":"<p>High-temperature calorimetry (HTC) originated in the 20th century as a niche method to enable measurements not easily accomplished with acid solution calorimetry, combustion calorimetry, vapor pressure, or EMF methods. Over time, HTC has evolved into a versatile approach to accurately quantify formation, phase transition, surface and interfacial enthalpies of a wide range of materials including minerals and refractory inorganic compounds. This evolution has been the result of numerous adjustments to experimental setups and procedures, followed by rigorous testing. The commercial availability and the scientific success of this technique have led to an increase in the number of laboratories applying HTC. However, the knowledge acquired by researchers over the past 70 years is scattered throughout the literature or only available as laboratory internal documentation and personal experience. This publication is a collaborative effort among several leading HTC laboratories to summarize and unify current state-of-the-art HTC techniques and procedures. The text starts by summarizing various HT techniques that are commonly used for readers with an interest in HTC in general. It is then directed toward HTC users and includes a brief section on data evaluation procedures as well as a comprehensive compilation of reference data utilizing molten sodium molybdate and lead borate solvents. Finally, for experienced HTC users, an in-depth discussion of some common difficulties and a discussion of uncertainties are presented.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Influence of laser parameters on texturing of 3Y-TZP and Ce-TZP/Al2O3/SrAl12O19 composite 激光参数对3Y-TZP和Ce-TZP/Al2O3/SrAl12O19复合材料织构的影响
IF 3.5 3区 材料科学
Journal of the American Ceramic Society Pub Date : 2025-02-16 DOI: 10.1111/jace.20418
Douglas Fabris, Fabian Ränke, Márcio C. Fredel, Andrés F. Lasagni, Bruno Henriques
{"title":"Influence of laser parameters on texturing of 3Y-TZP and Ce-TZP/Al2O3/SrAl12O19 composite","authors":"Douglas Fabris,&nbsp;Fabian Ränke,&nbsp;Márcio C. Fredel,&nbsp;Andrés F. Lasagni,&nbsp;Bruno Henriques","doi":"10.1111/jace.20418","DOIUrl":"https://doi.org/10.1111/jace.20418","url":null,"abstract":"<p>The development of new materials and surface functionalization processes has been extensively studied to further improve the performance of implants. This work explores the direct laser writing method as a potential alternative to produce controlled textures on the surface of traditional 3Y-TZP and a novel high-toughness composite (Ce-TZP/Al<sub>2</sub>O<sub>3</sub>/SrAl<sub>12</sub>O<sub>19</sub>). A 532 nm picosecond laser source is used to produce lines in sintered samples of both materials with different values of laser fluence, repetition rate, and scanning speed. The resulting textured samples are analyzed using confocal and scanning electron microscopes. Both materials were successfully textured using the laser technique, but the groove morphology and geometry are highly dependent on the parameters used. While low energy results in shallow and irregular grooves, high energy can result in crack and resolidification layer. Overall, for the same set of parameters, the laser produced wider and deeper grooves in the nanocomposite (up to 30 µm wide and 26 µm deep) than in the 3Y-TZP (up to 12 µm wide and 6 µm deep). Hence, this work showed the feasibility of laser texturing of traditional 3Y-TZP and the novel Ce-TZP/Al<sub>2</sub>O<sub>3</sub>/SrAl<sub>12</sub>O<sub>19</sub> that can be further explored to functionalize their surfaces for biomedical applications.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
DLP 3D-printing of dual porous YSZ ceramics with high mechanical properties using PMMA microsphere as pore-forming agent 以PMMA微球为成孔剂,DLP 3d打印高力学性能双孔YSZ陶瓷
IF 3.5 3区 材料科学
Journal of the American Ceramic Society Pub Date : 2025-02-16 DOI: 10.1111/jace.20432
Yansong Liu, Yongsheng Liu, Yejie Cao, Xiang Zheng, Xiaokun Sun, Yang Xu
{"title":"DLP 3D-printing of dual porous YSZ ceramics with high mechanical properties using PMMA microsphere as pore-forming agent","authors":"Yansong Liu,&nbsp;Yongsheng Liu,&nbsp;Yejie Cao,&nbsp;Xiang Zheng,&nbsp;Xiaokun Sun,&nbsp;Yang Xu","doi":"10.1111/jace.20432","DOIUrl":"https://doi.org/10.1111/jace.20432","url":null,"abstract":"<p>Dual porous yttria-stabilized zirconia (YSZ) ceramics were fabricated via digital light processing (DLP) additive manufacturing using polymethyl methacrylate (PMMA) microspheres as pore-forming agent for the first time. The results showed that the introduction of PMMA microspheres effectively reduced the viscosity of the photosensitive YSZ ceramic slurry used in DLP printing, improved the cured depth of the slurry, and did not exert a strong influence on stability. After sintering at 1400°C, pores with dual scales were generated in the ceramics, while exhibiting the optimal physical and mechanical properties. With the increase of PMMA content from 0 to 40 vol%, the open porosity increased from 1.96% to 34.06% and the density decreased from 5.92 to 3.82 g/cm<sup>3</sup>, respectively. The compressive strength and thermal conductivity of porous ceramics decreased from 350.54 to 99.85 MPa and from 2.80 to 1.46 W/(m⋅K), respectively. This investigation opens up new prospects for the fabrication of porous YSZ ceramics with low thermal conductivity and high mechanical properties.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Tribological properties and wear mechanism of short carbon fiber reinforced SiC composites against Al2O3, SiC, and Si3N4 短碳纤维增强SiC复合材料对Al2O3、SiC和Si3N4的摩擦学性能及磨损机理
IF 3.5 3区 材料科学
Journal of the American Ceramic Society Pub Date : 2025-02-14 DOI: 10.1111/jace.20392
Wenqian Pan, Xizhen Xia, Wei Zhou, Yang Li
{"title":"Tribological properties and wear mechanism of short carbon fiber reinforced SiC composites against Al2O3, SiC, and Si3N4","authors":"Wenqian Pan,&nbsp;Xizhen Xia,&nbsp;Wei Zhou,&nbsp;Yang Li","doi":"10.1111/jace.20392","DOIUrl":"https://doi.org/10.1111/jace.20392","url":null,"abstract":"<p>The tribological properties of carbon fiber-reinforced silicon carbide composites (C/C-SiC) were investigated under loads of 30 and 50 N using a reciprocating friction method. The study employed alumina, silicon carbide, and silicon nitride balls as the counterpart materials. Results indicated that under different loads, the C/C-SiC composites paired with silicon nitride balls exhibited the highest coefficient of friction and wear volume. In contrast, those paired with alumina balls demonstrated the best comprehensive tribological performance, with a low coefficient of friction and low value of wear volume. The wear mechanisms of the different pairs were studied, revealing that the primary wear mechanisms for each pair include abrasive wear, oxidative wear, and fatigue wear.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Multiphysical field full-process simulation of gallium oxide with EFG approach 用EFG方法模拟氧化镓的多物理场全过程
IF 3.5 3区 材料科学
Journal of the American Ceramic Society Pub Date : 2025-02-12 DOI: 10.1111/jace.20421
Changshuai Yin, Biao Meng, Songpeng Zhao, Yujie Yan, Qijun Wang, Gai Wu, Kang Liang, Zaoyang Li, Zhitai Jia, Qiangmin Wei, Sheng Liu, Zhaofu Zhang
{"title":"Multiphysical field full-process simulation of gallium oxide with EFG approach","authors":"Changshuai Yin,&nbsp;Biao Meng,&nbsp;Songpeng Zhao,&nbsp;Yujie Yan,&nbsp;Qijun Wang,&nbsp;Gai Wu,&nbsp;Kang Liang,&nbsp;Zaoyang Li,&nbsp;Zhitai Jia,&nbsp;Qiangmin Wei,&nbsp;Sheng Liu,&nbsp;Zhaofu Zhang","doi":"10.1111/jace.20421","DOIUrl":"https://doi.org/10.1111/jace.20421","url":null,"abstract":"<p>The quality of single-crystal growth for ultra-wide bandgap semiconductor material <i>β</i>-Ga<sub>2</sub>O<sub>3</sub>, a crucial material for the next generation of power electronic devices, currently constrains its broader applications. In this work, the edge-defined film-fed growth (EFG) process of gallium oxide (<i>β</i>-Ga<sub>2</sub>O<sub>3</sub>) single crystals is simulated and analyzed, the thermal field in the growth furnace is designed, and the appropriate crystal growth conditions are determined through multiphysical field full-process simulation, aiming to optimize the crystal quality. By introducing the volume force and Lorentz force, the solid–liquid phase transition and temperature distribution in the crucible are analyzed comprehensively. The optimal capillary gap width of 0.5 mm during crystal transport is obtained by the two-phase flow method. The structure and thermal field of the meniscus are analyzed in detail using the equivalent circle model, and the optimal range of the meniscus height is determined to be 0.90–2.94 mm. Finally, the crystal quality is compared using the EFG growth approach with and without the optimized process. The results demonstrate a significant improvement in crystal quality following the optimization process informed by our proposed full-process simulation. This research provides pioneering concepts and strategies for the further design and optimization of the EFG system for <i>β</i>-Ga<sub>2</sub>O<sub>3</sub> and related materials.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Synthesis of superhydrophobic crack-free monolithic silica aerogels via a vacuum freeze-drying process 真空冷冻干燥法制备超疏水无裂纹硅胶整体气凝胶
IF 3.5 3区 材料科学
Journal of the American Ceramic Society Pub Date : 2025-02-12 DOI: 10.1111/jace.20401
Yu Ma, Zhenting Zhu, Huangshuai Zhang, Mohamed Kallel, Zihao Yang, Juanna Ren, Salah M. El-Bahy, Zhe Chen, Zeinhom M. El-Bahy, Hang Zhang, Zhanhu Guo
{"title":"Synthesis of superhydrophobic crack-free monolithic silica aerogels via a vacuum freeze-drying process","authors":"Yu Ma,&nbsp;Zhenting Zhu,&nbsp;Huangshuai Zhang,&nbsp;Mohamed Kallel,&nbsp;Zihao Yang,&nbsp;Juanna Ren,&nbsp;Salah M. El-Bahy,&nbsp;Zhe Chen,&nbsp;Zeinhom M. El-Bahy,&nbsp;Hang Zhang,&nbsp;Zhanhu Guo","doi":"10.1111/jace.20401","DOIUrl":"https://doi.org/10.1111/jace.20401","url":null,"abstract":"<p>Freeze-drying is a promising method for drying gels, but it is considered incapable of preparing bulk inorganic oxide aerogels. Herein, using tert-butanol/water co-solvent as the freeze-drying solvent, large-size crack-free monolithic silica aerogels with different absolute ethyl alcohol to tetraethylorthosilicate molar ratios were successfully synthesized via a vacuum freeze-drying process. Superhydrophobicity was then obtained through an efficient chemical vapor deposition hydrophobic modification process. As the molar ratio increased from 8 to 16, the density, linear shrinkage, specific surface area (SSA), and mechanical properties decreased, while the thermal conductivity decreased first and then increased. The freeze-dried silica aerogels show the lowest density of 0.078 g/cm<sup>3</sup>, the lowest linear shrinkage of 4.6%, the highest SSA of 962 m<sup>2</sup>/g, the highest Young's modulus of 904.3 kPa, and a lowest thermal conductivity of 0.026 W/(m·K). Despite the formed fine ice crystals compressing the gel skeleton to some extent in the freeze-drying process, the developed mesoporous skeleton structure is basically preserved, which ensures excellent thermal insulation and mechanical performance. This study demonstrates that high-quality monolithic inorganic oxide aerogels can be effectively prepared by the freeze-drying method, which provides them with another efficient drying method independent of supercritical fluid drying and ambient pressure drying methods.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jace.20401","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Pressureless sintering and characterization of gel-cast ZrB2–SiC-based composites processed from optimized slurries 由优化浆料制备的zrb2 - sic基凝胶铸造复合材料的无压烧结及表征
IF 3.5 3区 材料科学
Journal of the American Ceramic Society Pub Date : 2025-02-12 DOI: 10.1111/jace.20427
Sunil Kumar Kashyap, Virushni S N, Adarsha Ranjan Mishra, V. V. Bhanuprasad, Manish Patel, Santanu Dhara, Rahul Mitra
{"title":"Pressureless sintering and characterization of gel-cast ZrB2–SiC-based composites processed from optimized slurries","authors":"Sunil Kumar Kashyap,&nbsp;Virushni S N,&nbsp;Adarsha Ranjan Mishra,&nbsp;V. V. Bhanuprasad,&nbsp;Manish Patel,&nbsp;Santanu Dhara,&nbsp;Rahul Mitra","doi":"10.1111/jace.20427","DOIUrl":"https://doi.org/10.1111/jace.20427","url":null,"abstract":"<p>Gel-casting followed by pressureless sintering has been developed as a process to fabricate near-net shaped ZrB<sub>2</sub>-20 vol.% SiC composites. The slurries for gel-casting have been prepared by using novel environment-friendly additives, egg-white (containing albumin) as a binder and sucrose with polyacrylic acid (PAA) as a dispersant to control viscosity. The slurry composition has been optimized (35–38 vol.% solid loading, 22–26 vol.% egg-white, 4–8 vol.% sucrose, and 0.3 vol% PAA) to achieve a uniform dispersion of constituents at pH = 9 with minimum zeta potential and shear thinning behavior, as verified by rheological studies. Defect-free green bodies with relative density (RD) &gt;50% and crushing strength ∼3.9–7.7 MPa, obtained by gel-casting of optimized slurries followed by controlled drying, have been sintered to attain RD ∼98%. Uniform and reduced shrinkage during drying or sintering ensured by optimum solid loading and a uniform dispersion of constituents, has restricted the formation of defects in the sintered products.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Property–structure evolution in alkali-free boroaluminosilicate glass via B2O3 substitution for alkaline earth oxides B2O3取代碱土氧化物对无碱硼铝硅酸盐玻璃性能结构的影响
IF 3.5 3区 材料科学
Journal of the American Ceramic Society Pub Date : 2025-02-12 DOI: 10.1111/jace.20400
Jiangtao Wu, Ziming Yan, Zhuoya Hao, Yurong Gao, Xuan Ge, Jiali Xu, Lianjun Wang, Linfeng Ding
{"title":"Property–structure evolution in alkali-free boroaluminosilicate glass via B2O3 substitution for alkaline earth oxides","authors":"Jiangtao Wu,&nbsp;Ziming Yan,&nbsp;Zhuoya Hao,&nbsp;Yurong Gao,&nbsp;Xuan Ge,&nbsp;Jiali Xu,&nbsp;Lianjun Wang,&nbsp;Linfeng Ding","doi":"10.1111/jace.20400","DOIUrl":"https://doi.org/10.1111/jace.20400","url":null,"abstract":"<p>Alkali-free boroaluminosilicate glass (AFBG) is widely utilized in electronic display panels and glass fibers due to its superior mechanical properties and thermal stability. The growing demand for high-performance materials capable of withstanding extreme conditions has propelled the development of AFBG. To this end, understanding the relationship between composition, structure, and properties at the atomic level is essential. This study investigates the effects of substituting B<sub>2</sub>O<sub>3</sub> for alkaline earth metal oxides (RO) on the properties and structural variations of AFBG using a combination of experimental techniques alongside molecular dynamics simulations. The results indicate that the substitution of B<sub>2</sub>O<sub>3</sub> with RO leads to an increase in [AlO<sub>5</sub>] and [BO<sub>3</sub>] units, resulting in an enhanced polymerized yet more open structure. This structural change is accompanied by a decrease in the coefficient of thermal expansion and glass transition temperature (<i>T</i><sub>g</sub>). Simultaneously, the reduced content of [AlO<sub>4</sub>] and [BO<sub>4</sub>] units weakens the overall glass network rigidity, leading to observed declines in elastic modulus and nanohardness. Notably, the changes in local coordination environment around Al dominates the overall structural and property variations. These findings provide atomic-scale insights into the structural mechanisms governing the behavior of AFBG.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Understanding interfacial bonding properties and mechanical properties of in situ synthesis of Cf/ZrB2–ZrC–SiC composite 原位合成Cf/ ZrB2-ZrC-SiC复合材料界面键合性能及力学性能研究
IF 3.5 3区 材料科学
Journal of the American Ceramic Society Pub Date : 2025-02-11 DOI: 10.1111/jace.20411
Yingjun Liu, Yuanzhe Fu, Yufei Zu, Yang Zhang, Hongfeng Dong, Wenhu Li, Taotao Ai, Jianjun Sha
{"title":"Understanding interfacial bonding properties and mechanical properties of in situ synthesis of Cf/ZrB2–ZrC–SiC composite","authors":"Yingjun Liu,&nbsp;Yuanzhe Fu,&nbsp;Yufei Zu,&nbsp;Yang Zhang,&nbsp;Hongfeng Dong,&nbsp;Wenhu Li,&nbsp;Taotao Ai,&nbsp;Jianjun Sha","doi":"10.1111/jace.20411","DOIUrl":"https://doi.org/10.1111/jace.20411","url":null,"abstract":"<p>The relationship between the interfacial bonding properties and the mechanical properties of carbon fiber reinforced ZrB<sub>2</sub>–ZrC–SiC composites (C<sub>f</sub>/ZrB<sub>2</sub>–ZrC–SiC) is currently under investigation. In this study, C<sub>f</sub>/ZrB<sub>2</sub>–ZrC–SiC composites with varying fiber–matrix interfacial bonding properties were prepared using slurry infiltration and in-situ reactive hot pressing. Polydopamine-derived carbon with different thicknesses was employed as the interphase to create various interfacial bonding properties, where interfacial bonding properties were evaluated using the single-fiber push-out method. Results indicated that a uniform and dense ZrB<sub>2</sub>–ZrC–SiC matrix was constructed, and low-porosity composites without fiber degradation were obtained. For composites with a higher interfacial shear strength (ISS) of 342 MPa, flexural strength and fracture toughness were 209 MPa and 7.5 MPa·m<sup>1/2</sup>, respectively. For composites with a lower ISS of 64 MPa, flexural strength and fracture toughness increased by 41% and 13%, with showing non-brittle behavior and work of fracture up to 10 kJ·m<sup>2</sup>. By combining analyses of thermal expansion behavior, residual thermal stresses, and thermal shock properties at ultrahigh temperatures, thermal mismatch and thermal damage can be minimized through the modulation of ISS. This approach is beneficial for optimizing the mechanical properties of fiber-reinforced ceramic composites.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Review of phase equilibria of the system BaO–TiO2 BaO-TiO2体系的相平衡研究进展
IF 3.5 3区 材料科学
Journal of the American Ceramic Society Pub Date : 2025-02-11 DOI: 10.1111/jace.20408
Tasmia Zaman, Pramod Koshy, John E. Daniels, Charles Christopher Sorrell
{"title":"Review of phase equilibria of the system BaO–TiO2","authors":"Tasmia Zaman,&nbsp;Pramod Koshy,&nbsp;John E. Daniels,&nbsp;Charles Christopher Sorrell","doi":"10.1111/jace.20408","DOIUrl":"https://doi.org/10.1111/jace.20408","url":null,"abstract":"<p>The system BaO–TiO<sub>2</sub> plays a significant role in the field of functional ceramics owing to the existence of multiple dielectric, piezoelectric, and ferroelectric intermediate phases. Although the first binary phase diagram for this system was introduced in 1951, more than 70 years passed before construction of a complete phase diagram. The present work provides a comprehensive and critical review of the 12 (1951–2024) previously published binary phase diagrams (BaO–TiO<sub>2</sub>), covering raw materials, processing conditions, characterization techniques, intermediate phases detected, and invariant points observed. Each diagram is examined in terms of its strengths and weaknesses. These data are supplemented with a brief chronological survey of ancillary ternary systems (BaO–TiO<sub>2</sub>–M<i><sub>x</sub></i>O<i><sub>y</sub></i>), all of which include the subsystem BaO–TiO<sub>2</sub>. These data allow the confirmation of the existence of phase assemblages and their temperature ranges of stability, thereby suggesting the conditions commensurate with metastable and equilibrium phase assemblages. The present review also addresses the ambiguities concerning the homogeneity regions of BaTiO<sub>3</sub>, thus clarifying the solubility limits for BaTiO<sub>3</sub> hypostoichiometric and hyperstoichiometric solid solutions. The present work aims to survey the relevant published binary and ternary phase equilibria literature for the purpose of clarifying the existing intermediate phases, their temperature ranges of stability, and the solid solubility homogeneity regions of BaTiO<sub>3</sub>.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jace.20408","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
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