Effect of Ceramic Particle Velocity on Cold Spray Deposition of Metal-Ceramic Coatings

被引：1
|
作者：
A. Sova
V. F. Kosarev
A. Papyrin
I. Smurov
机构：
[1] Ecole Nationale d’Ingénieurs de Saint-Etienne (ENISE),
[2] DIPI Laboratory,undefined
[3] Khristianovich Institute of Theoretical and Applied Mechanics SB RAS (ITAM SB RAS),undefined
[4] Cold Spray Technology,undefined
[5] LLC,undefined
来源：
Journal of Thermal Spray Technology | 2011年 / 20卷
关键词：
cermets; cold spray; composite coating; particle velocity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, metal-ceramic coatings are cold sprayed taking into account the spray parameters of both metal and ceramic particles. The effect of the ceramic particle velocity on the process of metal-ceramic coating formation and the coating properties is analyzed. Copper and aluminum powders are used as metal components. Two fractions of aluminum oxide and silicon carbide are sprayed in the tests. The ceramic particle velocity is varied by the particle injection into different zones of the gas flow: the subsonic and supersonic parts of the nozzle and the free jet after the nozzle exit. The experiments demonstrated the importance of the ceramic particle velocity for the stability of the process: Ceramic particles accelerated to a high enough velocity penetrate into the coating, while low-velocity ceramic particles rebound from its surface.
引用
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页码：285 / 291
页数：6
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