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	Thermal properties of single-phase y2sio5
	Sun, Ziqi2; Li, Meishuan; Zhou, Yanchun1
刊名	Journal of the european ceramic society
	2009-03-01
卷号	29期号:4页码:551-557
关键词	Y2sio5 Thermal properties Silicate Thermal conductivity Engine components
ISSN号	0955-2219
DOI	10.1016/j.jeurceramsoc.2008.07.026
通讯作者	Zhou, yanchun(yczhou@imr.ac.cn)
英文摘要	Y2sio5 is a promising candidate for oxidation-resistant or environmental/thermal barrier coatings (etbc) due to its excellent high-temperature stability, low elastic modulus and low oxygen permeability. in this paper, we investigated the thermal properties of y2sio5 comprehensively, including thermal expansion, thermal diffusivity, heat capacity and thermal conductivity. it is interesting that y2sio5 has a very low thermal conductivity (similar to 1.40 w/m k) but a relatively high linear thermal expansion coefficient ((8.36 +/- 0.5) x 10(-6) k-1), suggesting compatible thermal and mechanical properties to some non-oxide ceramics and nickel superalloys as etbc layer. y2sio5 is also an ideal ebc on ysz tbc layer due to their close thermal expansion coefficients. as a continuous source of y3+, it is predicted that y2sio5 ebc may prolong the lifetime of zirconia-based tbc by stopping the degradation aroused by the loss of y stabilizer. (c) 2008 elsevier ltd. all rights reserved.
WOS关键词	YTTRIUM SILICATE ; BARRIER COATINGS ; SI3N4 CERAMICS ; TEMPERATURE ; EXPANSION ; NITRIDE ; SI3N4-SIO2-Y2O3 ; CONDUCTIVITY ; CORROSION ; SYSTEM
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000262573100002
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2400536
专题	中国科学院大学
通讯作者	Zhou, Yanchun
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, High Performance Ceram Div, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Sun, Ziqi,Li, Meishuan,Zhou, Yanchun. Thermal properties of single-phase y2sio5[J]. Journal of the european ceramic society,2009,29(4):551-557.
APA	Sun, Ziqi,Li, Meishuan,&Zhou, Yanchun.(2009).Thermal properties of single-phase y2sio5.Journal of the european ceramic society,29(4),551-557.
MLA	Sun, Ziqi,et al."Thermal properties of single-phase y2sio5".Journal of the european ceramic society 29.4(2009):551-557.

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