Corrosion behaviors of non-equiatomic multicomponent monosilicates subjected to calcium-magnesium-alumino-silicate melts

IF 6.2 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2025-06-06 DOI:10.1016/j.jeurceramsoc.2025.117608

Siyu Hu , Xin Zhong , Fengwen Chen , Ruihui Liang , Xuemei Song , Xiaowu Chen , Yaran Niu , Xuebin Zheng

{"title":"Corrosion behaviors of non-equiatomic multicomponent monosilicates subjected to calcium-magnesium-alumino-silicate melts","authors":"Siyu Hu , Xin Zhong , Fengwen Chen , Ruihui Liang , Xuemei Song , Xiaowu Chen , Yaran Niu , Xuebin Zheng","doi":"10.1016/j.jeurceramsoc.2025.117608","DOIUrl":null,"url":null,"abstract":"<div><div>Rare-earth monosilicates environmental barrier coatings (EBCs) are attacked by severe calcium-magnesium-alumino-silicate (CMAS) corrosion during service. However, the CMAS corrosion resistance of silicates with a single rare-earth component is insufficient. Multi-component design is an important approach to improve the corrosion resistance of rare-earth monosilicates. In this work, four kinds of (nRExi)2SiO5 ((Yb0.8Er0.1Tm0.1)2SiO5, (Yb0.8Er0.1Y0.1)2SiO5, (Yb0.7Er0.1Tm0.1Ho0.1)2SiO5, and (Yb0.7Er0.1Tm0.1Y0.1)2SiO5) were synthesized to investigate their CMAS corrosion behaviors. The results indicated that the addition of RE with smaller ionic radii can improve the stability of crystal structure of monosilicates, and form rod-shaped apatite corrosion products, which interlaces to form a dense barrier layer. The Tm enrichment in CMAS can slow down the corrosion activity. After corrosion for 25 h, the corrosion layer for (Yb0.8Er0.1Tm0.1)2SiO5 was thinnest and densest, demonstrating excellent CMAS corrosion resistance. The non-equiatomic multicomponent design provides an effective approach to regulate the corrosion performance of rare-earth silicates used as EBCs.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 15","pages":"Article 117608"},"PeriodicalIF":6.2000,"publicationDate":"2025-06-06","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/S0955221925004285","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

Rare-earth monosilicates environmental barrier coatings (EBCs) are attacked by severe calcium-magnesium-alumino-silicate (CMAS) corrosion during service. However, the CMAS corrosion resistance of silicates with a single rare-earth component is insufficient. Multi-component design is an important approach to improve the corrosion resistance of rare-earth monosilicates. In this work, four kinds of (nRE_xi)₂SiO₅ ((Yb_0.8Er_0.1Tm_0.1)₂SiO₅, (Yb_0.8Er_0.1Y_0.1)₂SiO₅, (Yb_0.7Er_0.1Tm_0.1Ho_0.1)₂SiO₅, and (Yb_0.7Er_0.1Tm_0.1Y_0.1)₂SiO₅) were synthesized to investigate their CMAS corrosion behaviors. The results indicated that the addition of RE with smaller ionic radii can improve the stability of crystal structure of monosilicates, and form rod-shaped apatite corrosion products, which interlaces to form a dense barrier layer. The Tm enrichment in CMAS can slow down the corrosion activity. After corrosion for 25 h, the corrosion layer for (Yb_0.8Er_0.1Tm_0.1)₂SiO₅ was thinnest and densest, demonstrating excellent CMAS corrosion resistance. The non-equiatomic multicomponent design provides an effective approach to regulate the corrosion performance of rare-earth silicates used as EBCs.

查看原文本刊更多论文

非等原子多组分单硅酸盐在钙镁铝硅酸盐熔体中的腐蚀行为

稀土单硅酸盐环境屏障涂料在使用过程中受到严重的钙镁铝硅酸盐（CMAS）腐蚀。然而，单一稀土组分硅酸盐的CMAS耐蚀性不足。多组分设计是提高稀土单硅酸盐材料耐腐蚀性能的重要途径。本文合成了四种（nRExi）2SiO5 ((Yb0.8Er0.1Tm0.1)2SiO5, (Yb0.8Er0.1Y0.1)2SiO5, (Yb0.7Er0.1Tm0.1Ho0.1)2SiO5和（Yb0.7Er0.1Tm0.1Y0.1）2SiO5)，研究了它们的CMAS腐蚀行为。结果表明，离子半径较小的稀土元素的加入可以提高单硅酸盐晶体结构的稳定性，形成棒状的磷灰石腐蚀产物，相互交错形成致密的阻挡层。在CMAS中富集Tm可以减缓腐蚀活性。腐蚀25 h后，（Yb0.8Er0.1Tm0.1）2SiO5的腐蚀层最薄、密度最大，表现出优异的抗CMAS腐蚀性能。非等原子多组分设计为调控稀土硅酸盐的腐蚀性能提供了一种有效的方法。

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.