Thermo-physical properties of plasma sprayed Yttria Stabilized Zirconia Coatings

被引：10
|
作者：
Soltani, R. [1 ]
Coyle, T. W. [1 ]
Mostaghimi, J. [1 ]
Lima, R. S. [2 ]
Moreau, C. [2 ]
机构：
[1] Univ Toronto, Dept Mat Sci & Engn, Ctr Adv Coating Technol, Toronto, ON M5S 3E4, Canada
[2] Natl Res Council Canada, Inst Ind Mat, Boucherville, PQ J4B 6Y4, Canada
来源：
SURFACE & COATINGS TECHNOLOGY | 2008年 / 202卷 / 16期
关键词：
bimodal structure; zirconia coatings; plasma spray; thermal diffusivity;
D O I：
10.1016/j.surfcoat.2008.02.011
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This article investigates the thermo-physical properties of plasma sprayed zirconia coatings produced by agglomerates of submicron size particles as the feedstock. The microstructure of these deposits is consisted of splats and non-molten particles. This bimodal structure generally shows a better performance than conventional coatings. The agglomerated feedstock with internal submicron size porosity may significantly affect porosity related properties, such as the thermal diffusivity. In this study different process parameters were used to deposit yttria stabilized zirconia coatings with conventional and bimodal structures. Results showed a good correlation between the shape and distribution of pores and thermal diffusivity of the coatings. (c) 2008 Elsevier B.V All rights reserved.
引用
收藏
页码：3954 / 3959
页数：6
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