{"title":"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","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 (nRE<sub>xi</sub>)<sub>2</sub>SiO<sub>5</sub> ((Yb<sub>0.8</sub>Er<sub>0.1</sub>Tm<sub>0.1</sub>)<sub>2</sub>SiO<sub>5</sub>, (Yb<sub>0.8</sub>Er<sub>0.1</sub>Y<sub>0.1</sub>)<sub>2</sub>SiO<sub>5</sub>, (Yb<sub>0.7</sub>Er<sub>0.1</sub>Tm<sub>0.1</sub>Ho<sub>0.1</sub>)<sub>2</sub>SiO<sub>5</sub>, and (Yb<sub>0.7</sub>Er<sub>0.1</sub>Tm<sub>0.1</sub>Y<sub>0.1</sub>)<sub>2</sub>SiO<sub>5</sub>) 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<sub>0.8</sub>Er<sub>0.1</sub>Tm<sub>0.1</sub>)<sub>2</sub>SiO<sub>5</sub> 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":"{\"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 (nRE<sub>xi</sub>)<sub>2</sub>SiO<sub>5</sub> ((Yb<sub>0.8</sub>Er<sub>0.1</sub>Tm<sub>0.1</sub>)<sub>2</sub>SiO<sub>5</sub>, (Yb<sub>0.8</sub>Er<sub>0.1</sub>Y<sub>0.1</sub>)<sub>2</sub>SiO<sub>5</sub>, (Yb<sub>0.7</sub>Er<sub>0.1</sub>Tm<sub>0.1</sub>Ho<sub>0.1</sub>)<sub>2</sub>SiO<sub>5</sub>, and (Yb<sub>0.7</sub>Er<sub>0.1</sub>Tm<sub>0.1</sub>Y<sub>0.1</sub>)<sub>2</sub>SiO<sub>5</sub>) 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<sub>0.8</sub>Er<sub>0.1</sub>Tm<sub>0.1</sub>)<sub>2</sub>SiO<sub>5</sub> 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}","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}
Corrosion behaviors of non-equiatomic multicomponent monosilicates subjected to calcium-magnesium-alumino-silicate melts
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.
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.