Determination of the thermal conductivity of nickel-zirconia cermets by a laser-flash method

IMR OpenIR

	Determination of the thermal conductivity of nickel-zirconia cermets by a laser-flash method
	W. Y. Hu; H. R. Guan; X. F. Sun; S. Z. Li
	1999
发表期刊	High Temperatures-High Pressures
ISSN	0018-1544
卷号	31 期号:5 页码:535-542
摘要	A study of the thermal conductivity of nickel-zirconia cermets is reported. The following samples are investigated: nine types of one-layer nickel-zirconia composites with various nickel contents, four types of two-layered composites, and a three-layered composite. The measurements were performed with a conventional laser-flash apparatus with rear-side detection of the temperature response with an infrared detector. The thermal diffusivity or conductivity of one-layer nickel-zirconia composites is determined directly by the use of the half-rise time, t(1/2). For the case of multilayered materials, the data obtained are used to verify the thermal contact resistance (TCR). The measured results show that the thermal diffusivity and conductivity vary linearly with the measured temperature. The TCR is 0-0.09 K cm(2) W-1 for the duplexes including a nickel layer and 0-0.9 K cm(2) W-1 for other duplexes. The TCR of the three-layered sample is 0.7-1.6 K cm(2) W-1, much higher than that of the duplexes.
部门归属	hunan univ, dept appl phys, changsha 410082, peoples r china. acad sinica, inst met res, shenyang 110015, peoples r china.;hu, wy (reprint author), hunan univ, dept appl phys, changsha 410082, peoples r china
关键词	Barrier Coatings Microstructure
URL	查看原文
WOS记录号	WOS:000083711700008
引用统计	被引频次：1[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/321006/37368
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Y. Hu,H. R. Guan,X. F. Sun,et al. Determination of the thermal conductivity of nickel-zirconia cermets by a laser-flash method[J]. High Temperatures-High Pressures,1999,31(5):535-542.
APA	W. Y. Hu,H. R. Guan,X. F. Sun,&S. Z. Li.(1999).Determination of the thermal conductivity of nickel-zirconia cermets by a laser-flash method.High Temperatures-High Pressures,31(5),535-542.
MLA	W. Y. Hu,et al."Determination of the thermal conductivity of nickel-zirconia cermets by a laser-flash method".High Temperatures-High Pressures 31.5(1999):535-542.