An investigation of thermal conductivity of ceramic plasma coatings sprayed with plated powders

被引：1
|
作者：
Gusev V.M. [1 ]
Elagina O.Y. [1 ]
Mordynsky V.B. [2 ]
Tyuftyaev A.S. [2 ]
机构：
[1] Gubkin Russian State University of Oil and Gas, Leninskii pr. 65, Moscow
[2] Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13/2, Moscow
来源：
Inorganic Materials: Applied Research | 2016年 / 7卷 / 3期
关键词：
ceramic coatings; plasma spraying; plated powders; thermal conductivity coefficient;
D O I：
10.1134/S2075113316030084
中图分类号：
学科分类号：
摘要：
Features of the formation and structure of plasma ceramic coatings sprayed with composite powders based on alumina and zirconia plated with nickel and aluminum are studied. The porosity and thermal conductivity of the coatings and the microhardness of the phase components are measured. It is found that a decrease in the thermal conductivity of the composite coatings caused by a decrease in the metal phase content with increasing plasmatron arc power is compensated by an increase thereof owing to a decrease in the coating porosity, which neutralizes the net effect of the arc power on the thermal conductivity of metal–ceramic coatings. © 2016, Pleiades Publishing, Ltd.
引用
收藏
页码：372 / 375
页数：3
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