The effect of argon shielding gas at plasma spray process on the structure and properties of MoSi2 coating

被引：28

作者：

Erfanmanesh, Mohammad ^{[1
]}

Bakhshi, Saeed Reza ^{[1
]}

Khajelakzay, Mohammad ^{[1
]}

Salekbafghi, Mostafa ^{[1
]}

机构：

[1] Malek Ashtar Univ Technol, Dept Mat Sci & Engn, Shahin Shahr, Iran

来源：

CERAMICS INTERNATIONAL | 2014年 / 40卷 / 03期

关键词：

MoSi2; coating; Atmospheric plasma spray; Agglomeration; Argon shielding gas; COMPOSITE; BEHAVIOR;

D O I：

10.1016/j.ceramint.2013.08.128

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work, MoSi2 powder was agglomerated for using it in atmospheric plasma spray (APS) process. MoSi2 coatings were manufactured by APS and argon-shrouded plasma spray (ASPS) processes. Phase composition and structural properties of coatings were analyzed using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Also, the mechanical properties of coatings (such as microhardness and adhesion strength) were evaluated. Using the ASPS method, the coatings were found to have a low porosity and highly homogeneous structure. In addition, the argon protection gas was used to prevent the oxidation of the powder. Finally, the ASPS method revealed better microhardness and bending strength results for the corresponding tests. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：4529 / 4533

页数：5

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