{"title":"T/EBCs用（Yb0.7Gd0.3）4Hf3O12/Yb2SiO5/Si多层膜的热化学相容性及微观结构演变","authors":"Wangqiang Peng, Qian Guo, Liangliang Wei, Jian He, Jingyong Sun, Hongbo Guo","doi":"10.1111/jace.20478","DOIUrl":null,"url":null,"abstract":"<p>In this study, the novel tri-layer (Yb<sub>0.7</sub>Gd<sub>0.3</sub>)<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub>/Yb<sub>2</sub>SiO<sub>5</sub>/Si thermal/environmental barrier coatings (T/EBCs) were prepared by plasma spray-physical vapor deposition (PS-PVD) and atmospheric plasma spray. The thermochemical compatibility, microstructure evolution, phase compositions, and mechanical properties of the novel T/EBCs were systematically investigated. The (Yb<sub>0.7</sub>Gd<sub>0.3</sub>)<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> coating deposited by PS-PVD exhibited a “quasi-columnar” structure with a “feather-like” microscopic morphology, with a nanohardness of ∼3.19 GPa and an elastic modulus of ∼43.98 GPa, while the Yb<sub>2</sub>SiO<sub>5</sub> coating prepared by PS-PVD had a lamellar structure with high crystallinity and low porosity. The (Yb<sub>0.7</sub>Gd<sub>0.3</sub>)<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> coating exhibited an adherent interface with the Yb<sub>2</sub>SiO<sub>5</sub> coating after thermal aging at 1400°C for 100 h, with no interfacial pores or layer debonding, indicating superior thermochemical compatibility of the (Yb<sub>0.7</sub>Gd<sub>0.3</sub>)<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub>/Yb<sub>2</sub>SiO<sub>5</sub> interface. Moreover, the (Yb<sub>0.7</sub>Gd<sub>0.3</sub>)<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> coating exhibited high resistance to sintering and great phase stability at high temperatures, making it a promising top coat material for T/EBCs.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 7","pages":""},"PeriodicalIF":3.5000,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Thermochemical compatibility and microstructure evolution of (Yb0.7Gd0.3)4Hf3O12/Yb2SiO5/Si multilayers for T/EBCs\",\"authors\":\"Wangqiang Peng, Qian Guo, Liangliang Wei, Jian He, Jingyong Sun, Hongbo Guo\",\"doi\":\"10.1111/jace.20478\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>In this study, the novel tri-layer (Yb<sub>0.7</sub>Gd<sub>0.3</sub>)<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub>/Yb<sub>2</sub>SiO<sub>5</sub>/Si thermal/environmental barrier coatings (T/EBCs) were prepared by plasma spray-physical vapor deposition (PS-PVD) and atmospheric plasma spray. The thermochemical compatibility, microstructure evolution, phase compositions, and mechanical properties of the novel T/EBCs were systematically investigated. The (Yb<sub>0.7</sub>Gd<sub>0.3</sub>)<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> coating deposited by PS-PVD exhibited a “quasi-columnar” structure with a “feather-like” microscopic morphology, with a nanohardness of ∼3.19 GPa and an elastic modulus of ∼43.98 GPa, while the Yb<sub>2</sub>SiO<sub>5</sub> coating prepared by PS-PVD had a lamellar structure with high crystallinity and low porosity. The (Yb<sub>0.7</sub>Gd<sub>0.3</sub>)<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> coating exhibited an adherent interface with the Yb<sub>2</sub>SiO<sub>5</sub> coating after thermal aging at 1400°C for 100 h, with no interfacial pores or layer debonding, indicating superior thermochemical compatibility of the (Yb<sub>0.7</sub>Gd<sub>0.3</sub>)<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub>/Yb<sub>2</sub>SiO<sub>5</sub> interface. Moreover, the (Yb<sub>0.7</sub>Gd<sub>0.3</sub>)<sub>4</sub>Hf<sub>3</sub>O<sub>12</sub> coating exhibited high resistance to sintering and great phase stability at high temperatures, making it a promising top coat material for T/EBCs.</p>\",\"PeriodicalId\":200,\"journal\":{\"name\":\"Journal of the American Ceramic Society\",\"volume\":\"108 7\",\"pages\":\"\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2025-03-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the American Ceramic Society\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/jace.20478\",\"RegionNum\":3,\"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 American Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jace.20478","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Thermochemical compatibility and microstructure evolution of (Yb0.7Gd0.3)4Hf3O12/Yb2SiO5/Si multilayers for T/EBCs
In this study, the novel tri-layer (Yb0.7Gd0.3)4Hf3O12/Yb2SiO5/Si thermal/environmental barrier coatings (T/EBCs) were prepared by plasma spray-physical vapor deposition (PS-PVD) and atmospheric plasma spray. The thermochemical compatibility, microstructure evolution, phase compositions, and mechanical properties of the novel T/EBCs were systematically investigated. The (Yb0.7Gd0.3)4Hf3O12 coating deposited by PS-PVD exhibited a “quasi-columnar” structure with a “feather-like” microscopic morphology, with a nanohardness of ∼3.19 GPa and an elastic modulus of ∼43.98 GPa, while the Yb2SiO5 coating prepared by PS-PVD had a lamellar structure with high crystallinity and low porosity. The (Yb0.7Gd0.3)4Hf3O12 coating exhibited an adherent interface with the Yb2SiO5 coating after thermal aging at 1400°C for 100 h, with no interfacial pores or layer debonding, indicating superior thermochemical compatibility of the (Yb0.7Gd0.3)4Hf3O12/Yb2SiO5 interface. Moreover, the (Yb0.7Gd0.3)4Hf3O12 coating exhibited high resistance to sintering and great phase stability at high temperatures, making it a promising top coat material for T/EBCs.
期刊介绍：
The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials.
Papers on fundamental ceramic and glass science are welcome including those in the following areas:
Enabling materials for grand challenges[...]
Materials design, selection, synthesis and processing methods[...]
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JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.
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