Ceramic repair agents for damaged CMC: Assessing repair performance

IF 5.8 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2024-11-24 DOI:10.1016/j.jeurceramsoc.2024.117108

Zhuoke Zhang , Zhaofeng Chen , Le Lu , Wenjing Sun , Fei Wang , Shijie Chen , Qiankang Zheng , Guojian Liu , Lixia Yang , Yuming Xing

{"title":"Ceramic repair agents for damaged CMC: Assessing repair performance","authors":"Zhuoke Zhang , Zhaofeng Chen , Le Lu , Wenjing Sun , Fei Wang , Shijie Chen , Qiankang Zheng , Guojian Liu , Lixia Yang , Yuming Xing","doi":"10.1016/j.jeurceramsoc.2024.117108","DOIUrl":null,"url":null,"abstract":"<div><div>In this paper, a low-temperature fast-curing repair agent with metal and ceramic powders composite modified with liquid sodium silicate was developed, which was optimized by composition to have high mechanical properties. After fabricating U-notches to remove cracks, the repair tolerance of C<sub>f</sub>/SiC composites was investigated on the basis of relative residual flexural strength and notch depth, respectively. The fracture morphology of the repaired C<sub>f</sub>/SiC parent material showed that the repair agent could fill the pores between the fiber bundles of the parent material better, and restored the flexural strength of the parent material from 91.07 MPa to 142.04 MPa, with a restoration rate as high as 55.96 %. This study is expected to be applied to the low-cost and rapid repair of ceramic matrix composites to increase the possibility of their application in aero engines.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 4","pages":"Article 117108"},"PeriodicalIF":5.8000,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The European Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0955221924009816","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}

引用次数: 0

Abstract

In this paper, a low-temperature fast-curing repair agent with metal and ceramic powders composite modified with liquid sodium silicate was developed, which was optimized by composition to have high mechanical properties. After fabricating U-notches to remove cracks, the repair tolerance of C_f/SiC composites was investigated on the basis of relative residual flexural strength and notch depth, respectively. The fracture morphology of the repaired C_f/SiC parent material showed that the repair agent could fill the pores between the fiber bundles of the parent material better, and restored the flexural strength of the parent material from 91.07 MPa to 142.04 MPa, with a restoration rate as high as 55.96 %. This study is expected to be applied to the low-cost and rapid repair of ceramic matrix composites to increase the possibility of their application in aero engines.

查看原文本刊更多论文

受损 CMC 的陶瓷修复剂：评估修复性能

本文开发了一种用液态硅酸钠改性的金属和陶瓷粉复合低温快速固化修补剂，通过成分优化使其具有较高的机械性能。在制作 U 形缺口去除裂纹后，分别根据相对残余抗弯强度和缺口深度研究了 Cf/SiC 复合材料的修复容限。修复后的 Cf/SiC 母材的断裂形态表明，修复剂能更好地填充母材纤维束之间的孔隙，并使母材的抗弯强度从 91.07 兆帕恢复到 142.04 兆帕，恢复率高达 55.96%。这项研究有望应用于陶瓷基复合材料的低成本快速修复，从而提高其在航空发动机中应用的可能性。

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

Journal of The European Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

10.70

自引率

12.30%

发文量

863

审稿时长

35 days

期刊介绍： The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.