Phase evolution of reactive sputtering synthesized holmium silicate coatings

doi:10.1111/jace.15930

IMR OpenIR

	Phase evolution of reactive sputtering synthesized holmium silicate coatings
	Hu, Wanpeng 1,2; Zhang, Jie 1; Nian, Hongqiang 3; Wang, Jingyang 1
通讯作者	Zhang, Jie(jiezhang@imr.ac.cn)
	2019
发表期刊	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN	0002-7820
卷号	102 期号:1 页码:490-497
摘要	Holmium silicates are promising environmental barrier coatings (EBCs) materials for Si-based non-oxide ceramics due to their excellent thermal and mechanical properties. In the present work, the phase evolution of holmium silicate coatings synthesized by reactive sputtering was systematically studied. The monosilicate crystallized in an X1-Ho2SiO5 phase at 1000 degrees C and transformed to an X2-Ho2SiO5 phase at 1200 degrees C. The phase transition is not problematic for the coating process because the X1- and X-2-Ho2SiO5 phases have similar coefficients of thermal expansion (CTEs). For the holmium disilicates, the stoichiometry obviously influenced polymorphic phase evolutions. Relatively Ho2O3-rich compounds promoted the formation of gamma-Ho2Si2O7 phase at lower temperatures. This study on phase evolution vs temperature and stoichiometry can provide a guideline to optimize the processing and the properties of advanced holmium silicate EBCs.
关键词	environmental barrier coatings holmium silicates phase evolution stoichiometry
资助者	National Natural Science Foundation of China ; National Key R&D Program of China
DOI	10.1111/jace.15930
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51402311] ; National Natural Science Foundation of China[51772302] ; National Key R&D Program of China[2017YFB0703201]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000459932500051
出版者	WILEY
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/132325
专题	中国科学院金属研究所
通讯作者	Zhang, Jie
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Liaoning, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Hu, Wanpeng,Zhang, Jie,Nian, Hongqiang,et al. Phase evolution of reactive sputtering synthesized holmium silicate coatings[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2019,102(1):490-497.
APA	Hu, Wanpeng,Zhang, Jie,Nian, Hongqiang,&Wang, Jingyang.(2019).Phase evolution of reactive sputtering synthesized holmium silicate coatings.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,102(1),490-497.
MLA	Hu, Wanpeng,et al."Phase evolution of reactive sputtering synthesized holmium silicate coatings".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 102.1(2019):490-497.