Title of article
A comparative study of MoSi2 coatings manufactured by atmospheric and vacuum plasma spray processes
Author/Authors
Xiaoai Fei، نويسنده , , Yaran Niu، نويسنده , , Heng Ji، نويسنده , , Liping Huang، نويسنده , , Xuebin Zheng، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
5
From page
813
To page
817
Abstract
In this work, MoSi2 coatings were manufactured by atmospheric plasma spraying (APS) and vacuum plasma spraying (VPS) technologies, respectively. Phase composition and microstructure of the coatings were characterized by X-ray diffraction and scanning electron microscopy. Microhardness, void and oxygen content of the coatings were also determined. Oxidation behavior of the coatings at high temperature was examined. The results showed that the surface of VPS-MoSi2 coating was dense and homogeneous. However, there were many microcracks formed on the surface of APS-MoSi2 coating. The VPS-MoSi2 coating also had lower void and oxygen contents, higher Vickers hardness compared with those of APS-MoSi2 coating. Besides, oxidation resistance of the VPS-MoSi2 coating was better than that of APS-MoSi2 at 1500 °C.
Keywords
plasma spray , MoSi2 coatings , microstructure , Oxidation behavior
Journal title
Ceramics International
Serial Year
2011
Journal title
Ceramics International
Record number
1273224
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