Thermal properties of single-phase Y2SiO5
Sun, Ziqi2; Li, Meishuan; Zhou, Yanchun1
Corresponding AuthorZhou, Yanchun(
AbstractY2SiO5 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.
KeywordY2SiO5 Thermal properties Silicate Thermal conductivity Engine components
Funding OrganizationNational Outstanding Young Scientist Foundation ; Natural Sciences Foundation of China
Indexed BySCI
Funding ProjectNational Outstanding Young Scientist Foundation[59925208] ; Natural Sciences Foundation of China[50232040] ; Natural Sciences Foundation of China[50302011] ; Natural Sciences Foundation of China[90403027] ; Natural Sciences Foundation of China[50772114]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000262573100002
Citation statistics
Cited Times:88[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorZhou, Yanchun
Affiliation1.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
Recommended Citation
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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