Corrosion behavior and strength degradation of Ti3SiC2 exposed to a eutectic K2CO3 and Li2CO3 mixture

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	Corrosion behavior and strength degradation of Ti3SiC2 exposed to a eutectic K2CO3 and Li2CO3 mixture
	G. M. Liu; M. S. Li; Y. C. Zhou; Y. M. Zhang
	2003
发表期刊	Journal of the European Ceramic Society
ISSN	0955-2219
卷号	23 期号:11 页码:1957-1962
摘要	The corrosion of polycrystalline Ti3SiC2 was studied in the eutectic Li2CO3 (68 at.%) and K2CO3 (32 at.%) Mixture at 650-850degreesC. Ti3SiC2 exhibited better corrosion resistance at 650 degreesC. However, the mass loss was fast when temperature was above 700 degreesC. It was demonstrated that the surface chemical reaction-controlled shrinking core model could be applied to describe the relationship between the degree of the corrosion and reaction time for the corrosion of Ti3SiC2 in the 700-850 degreesC temperature range. The corresponding apparent activation energy was 206 kJ/mol. Corrosion resulted in roughness of specimen surface. The fracture strength of the corroded samples was evaluated by a three-point bending test. The results showed that the degradation of the fracture strength was about 25% of the original values for the corroded specimens tip to 10% weight loss. The mechanism of the strength degradation was discussed based on the analysis of the microstructure and composition of the corroded sample. (C) 2003 Elsevier Science Ltd. All rights reserved.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;liu, gm (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
关键词	Carbonate Melt Corrosion Fracture Strength Molten Salts Ti3sic2 Titanium-silicon Carbide Hot Corrosion Bulk Ceramics
URL	查看原文
WOS记录号	WOS:000184035500023
引用统计	被引频次：20[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/321006/35918
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. M. Liu,M. S. Li,Y. C. Zhou,et al. Corrosion behavior and strength degradation of Ti3SiC2 exposed to a eutectic K2CO3 and Li2CO3 mixture[J]. Journal of the European Ceramic Society,2003,23(11):1957-1962.
APA	G. M. Liu,M. S. Li,Y. C. Zhou,&Y. M. Zhang.(2003).Corrosion behavior and strength degradation of Ti3SiC2 exposed to a eutectic K2CO3 and Li2CO3 mixture.Journal of the European Ceramic Society,23(11),1957-1962.
MLA	G. M. Liu,et al."Corrosion behavior and strength degradation of Ti3SiC2 exposed to a eutectic K2CO3 and Li2CO3 mixture".Journal of the European Ceramic Society 23.11(2003):1957-1962.