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Tunable properties of (HoxY1-x)(2)SiO5 as damage self-monitoring environmental/thermal barrier coating candidates
Tian, Zhilin1,2; Zheng, Liya1; Hu, Wanpeng1,3; Sun, Luchao1; Zhang, Jie1; Wang, Jingyang1
Corresponding AuthorWang, Jingyang(jywang@imr.ac.cn)
2019-01-23
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume9Pages:7
AbstractRE2SiO5 with low thermal conductivity, compatible thermal expansion coefficients and excellent high-temperature reliability in harsh environments are excellent candidates as advanced environmental/thermal barrier coating materials for high-efficiency gas turbine engines. A series of rare earth silicates (HoxY1-x)(2)SiO5 are designed and their properties are comprehensively investigated in this paper. Through doping Ho into Y2SiO5, the thermal conductivity of Y2SiO5 is significantly decreased and the thermal expansion coefficient is also optimized closer to Si-based ceramics. High-temperature elastic stiffness and bending strength are increased with the enhancing of Ho content. Most important, doping Ho element provides (HoxY1-x)(2)SiO5 with tunable luminescence characteristic. (Ho(x)Y(1-)x)(2)SiO5 exhibit green, to yellow-green, then to orange-red luminescence color with increased Ho concentration. The results show that they can be used as damage self-monitoring environmental/thermal barrier coating materials for Si-based ceramics.
Funding OrganizationNational Key R&D Program of China ; Natural Science Foundation of China
DOI10.1038/s41598-018-36883-2
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFB0703201] ; Natural Science Foundation of China[51402311] ; Natural Science Foundation of China[51772302]
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000456392400096
PublisherNATURE PUBLISHING GROUP
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/131332
Collection中国科学院金属研究所
Corresponding AuthorWang, Jingyang
Affiliation1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, High Performance Ceram Div, Shenyang 110016, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Tian, Zhilin,Zheng, Liya,Hu, Wanpeng,et al. Tunable properties of (HoxY1-x)(2)SiO5 as damage self-monitoring environmental/thermal barrier coating candidates[J]. SCIENTIFIC REPORTS,2019,9:7.
APA Tian, Zhilin,Zheng, Liya,Hu, Wanpeng,Sun, Luchao,Zhang, Jie,&Wang, Jingyang.(2019).Tunable properties of (HoxY1-x)(2)SiO5 as damage self-monitoring environmental/thermal barrier coating candidates.SCIENTIFIC REPORTS,9,7.
MLA Tian, Zhilin,et al."Tunable properties of (HoxY1-x)(2)SiO5 as damage self-monitoring environmental/thermal barrier coating candidates".SCIENTIFIC REPORTS 9(2019):7.
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