Suspension plasma sprayed composite coating using amorphous powder feedstock

被引：21
作者：
Chen, Dianying [1 ]
Jordan, Eric H. [2 ]
Gell, Maurice [1 ]
机构：
[1] Univ Connecticut, Inst Mat Sci, Dept Chem Mat & Biomol Engn, Storrs, CT 06269 USA
[2] Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA
来源：
APPLIED SURFACE SCIENCE | 2009年 / 255卷 / 11期
关键词：
Alumina; Zirconia; Suspension plasma spray; Amorphous powders; Nanocomposites; THERMAL BARRIER COATINGS; TITANIA COATINGS; SPLAT FORMATION; ZIRCONIA; MICROSTRUCTURE; FABRICATION; RESISTANCE; TIO2;
D O I：
10.1016/j.apsusc.2009.01.038
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Al(2)O(3)-ZrO(2) composite coatings were deposited by the suspension plasma spray process using molecularly mixed amorphous powders. X-ray diffraction (XRD) analysis shows that the as-sprayed coating is composed of alpha-Al(2)O(3) and tetragonal ZrO(2) phases with grain sizes of 26 nm and 18 nm, respectively. The as-sprayed coating has 93% density with a hardness of 9.9 GPa. Heat treatment of the as-sprayed coating reveals that the Al(2)O(3) and ZrO(2) phases are homogeneously distributed in the composite coating. (C) 2009 Elsevier B.V. All rights reserved.
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收藏
页码：5935 / 5938
页数：4
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