Enhanced mechanical properties and mechanisms of ceramic layer toughened by a surface-modified SiC whisker

IF 2.3 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

International Journal of Applied Ceramic Technology Pub Date : 2025-05-28 DOI:10.1111/ijac.15187

Zhijia Zhang, Yongzhi Jing, Guo Jin, Xiufang Cui, Zhuo Chen, Qicheng Li, Shinan Hu, Dechang Ma, Hanchun Wang, Yongchao Fang, Haidou Wang

{"title":"Enhanced mechanical properties and mechanisms of ceramic layer toughened by a surface-modified SiC whisker","authors":"Zhijia Zhang, Yongzhi Jing, Guo Jin, Xiufang Cui, Zhuo Chen, Qicheng Li, Shinan Hu, Dechang Ma, Hanchun Wang, Yongchao Fang, Haidou Wang","doi":"10.1111/ijac.15187","DOIUrl":null,"url":null,"abstract":"To enhance the service longevity and operational stability of thermal barrier coatings (TBCs), surface-modified silicon carbide whiskers (SiCw) have been strategically integrated into yttria-stabilized zirconia (YSZ) matrices. This study systematically evaluates the influence of SiCw surface modification on the mechanical integrity of composite coatings. Quantitative analysis reveals that the surface-functionalized SiCw effectively reduces coating porosity while concurrently enhancing mechanical performance. Notably, the YSZ-WL composite coating exhibited superior fracture toughness, demonstrating a 25–35% improvement relative to the baseline YSZ system. Post-sintering evaluation further substantiated that the YSZ-WL ceramic layer retains exceptional tensile resistance and flexural load-bearing capacity. Accelerated erosion testing revealed an 18.5% reduction in mass loss rate for YSZ-WL (1.072 mg/g) compared to conventional YSZ (1.316 mg/g). The toughening mechanisms governing the modified SiCw-reinforced system are attributed to three synergistic effects: (I) Optimized interfacial bonding, (II) Crack deflection, and (III) Enhanced whisker pull-out resistance.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 5","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Applied Ceramic Technology","FirstCategoryId":"88","ListUrlMain":"https://ceramics.onlinelibrary.wiley.com/doi/10.1111/ijac.15187","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}

引用次数: 0

Abstract

To enhance the service longevity and operational stability of thermal barrier coatings (TBCs), surface-modified silicon carbide whiskers (SiC_w) have been strategically integrated into yttria-stabilized zirconia (YSZ) matrices. This study systematically evaluates the influence of SiC_w surface modification on the mechanical integrity of composite coatings. Quantitative analysis reveals that the surface-functionalized SiC_w effectively reduces coating porosity while concurrently enhancing mechanical performance. Notably, the YSZ-W_L composite coating exhibited superior fracture toughness, demonstrating a 25–35% improvement relative to the baseline YSZ system. Post-sintering evaluation further substantiated that the YSZ-W_L ceramic layer retains exceptional tensile resistance and flexural load-bearing capacity. Accelerated erosion testing revealed an 18.5% reduction in mass loss rate for YSZ-W_L (1.072 mg/g) compared to conventional YSZ (1.316 mg/g). The toughening mechanisms governing the modified SiC_w-reinforced system are attributed to three synergistic effects: (I) Optimized interfacial bonding, (II) Crack deflection, and (III) Enhanced whisker pull-out resistance.

Abstract Image

查看原文本刊更多论文

表面改性碳化硅晶须增强陶瓷层的力学性能及增韧机理

为了提高热障涂层（tbc）的使用寿命和运行稳定性，表面改性碳化硅晶须（SiCw）已被战略性地集成到氧化钇稳定氧化锆（YSZ）基体中。本研究系统地评价了SiCw表面改性对复合涂层力学完整性的影响。定量分析表明，表面功能化的SiCw在有效降低涂层孔隙率的同时，提高了涂层的力学性能。值得注意的是，YSZ- wl复合涂层具有优异的断裂韧性，与基准YSZ体系相比，其断裂韧性提高了25-35%。烧结后的评价进一步证实了YSZ-WL陶瓷层保持了优异的抗拉性能和弯曲承载能力。加速侵蚀测试表明，与传统的YSZ （1.316 mg/g）相比，YSZ- wl的质量损失率降低了18.5% （1.072 mg/g）。控制改性sicw增强体系的增韧机制可归因于三个协同效应：(1)界面结合优化，(2)裂纹偏转，(3)晶须抗拔出性增强。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Applied Ceramic Technology 工程技术-材料科学：硅酸盐

CiteScore

3.90

自引率

9.50%

发文量

280

审稿时长

4.5 months

期刊介绍： The International Journal of Applied Ceramic Technology publishes cutting edge applied research and development work focused on commercialization of engineered ceramics, products and processes. The publication also explores the barriers to commercialization, design and testing, environmental health issues, international standardization activities, databases, and cost models. Designed to get high quality information to end-users quickly, the peer process is led by an editorial board of experts from industry, government, and universities. Each issue focuses on a high-interest, high-impact topic plus includes a range of papers detailing applications of ceramics. Papers on all aspects of applied ceramics are welcome including those in the following areas: Nanotechnology applications; Ceramic Armor; Ceramic and Technology for Energy Applications (e.g., Fuel Cells, Batteries, Solar, Thermoelectric, and HT Superconductors); Ceramic Matrix Composites; Functional Materials; Thermal and Environmental Barrier Coatings; Bioceramic Applications; Green Manufacturing; Ceramic Processing; Glass Technology; Fiber optics; Ceramics in Environmental Applications; Ceramics in Electronic, Photonic and Magnetic Applications;