A THERMO-DAMAGE STRENGTH MODEL FOR THE SiC-DEPLETED LAYER OF   ULTRA-HIGH-TEMPERATURE CERAMICS ON HIGH TEMPERATURE OXIDATION

doi:10.1142/S1758825113500269

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	A THERMO-DAMAGE STRENGTH MODEL FOR THE SiC-DEPLETED LAYER OF ULTRA-HIGH-TEMPERATURE CERAMICS ON HIGH TEMPERATURE OXIDATION
	Wang, Ruzhuan ; Li, Weiguo ; Fang, Daining
刊名	international journal of applied mechanics
	2013
关键词	Ultra-high-temperature ceramics the SiC-depleted layer high temperature oxidation thermo-damage strength model DIBORIDE-SILICON CARBIDE MECHANICAL-PROPERTIES ZIRCONIUM COMPOSITES MICROSTRUCTURE ZRB2 FRACTURE RANGE AIR
DOI	10.1142/S1758825113500269
英文摘要	At high temperatures above 1650 degrees C, the SiC-depleted layer of ultra-high-temperature ceramics which has high porosity appears during the oxidation process. In this present paper, based on the studies of the oxidative mechanisms and the fracture mechanisms of ultra-high-temperature ceramics under normal and high temperatures, a thermo-damage strength model for the SiC-depleted layer on high temperature oxidation was proposed. Using the model, the phase transformation, microstructure development and fracture performance in the SiC-depleted layer on high temperature oxidation were studied in detail. The study showed that the porosity is mainly related to the oxidation of SiC. And while the SiC is substantially completely oxidized, only a very small part of matrix is oxidized. The fracture strength of the SiC-depleted layer degrades seriously during the high temperature oxidation process. And the bigger the initial volume fraction of SiC, the lower the fracture strength of the SiC-depleted layer is. This layer may become the origin of failure of material, thus the further researches should be undertaken to improve the oxidation behavior for the ultra-high-temperature ceramics in a wider temperature range.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000325339600003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Mechanics; SCI(E); EI; 0; ARTICLE; 3; 5
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/391150]
专题	工学院
推荐引用方式 GB/T 7714	Wang, Ruzhuan,Li, Weiguo,Fang, Daining. A THERMO-DAMAGE STRENGTH MODEL FOR THE SiC-DEPLETED LAYER OF ULTRA-HIGH-TEMPERATURE CERAMICS ON HIGH TEMPERATURE OXIDATION[J]. international journal of applied mechanics,2013.
APA	Wang, Ruzhuan,Li, Weiguo,&Fang, Daining.(2013).A THERMO-DAMAGE STRENGTH MODEL FOR THE SiC-DEPLETED LAYER OF ULTRA-HIGH-TEMPERATURE CERAMICS ON HIGH TEMPERATURE OXIDATION.international journal of applied mechanics.
MLA	Wang, Ruzhuan,et al."A THERMO-DAMAGE STRENGTH MODEL FOR THE SiC-DEPLETED LAYER OF ULTRA-HIGH-TEMPERATURE CERAMICS ON HIGH TEMPERATURE OXIDATION".international journal of applied mechanics (2013).