Laser Irradiation of SiC-MoSi2 Composite Ceramics

被引：2
|
作者：
Marquez Aguilar, P. A. [1 ]
Vlasova, M. [1 ]
Resendiz-Gonzalez, M. C. [1 ]
Kakazey, M. [1 ]
Mayorga Cruz, D. [1 ]
Bykov, A. [2 ]
Tomila, T. [2 ]
Stetsenko, V. [2 ]
机构：
[1] Autonomous Univ State Morelos, Cuernavaca 1001, Morelos, Mexico
[2] Natl Acad Sci Ukraine, Inst Problems Mat Sci, UA-252680 Kiev, Ukraine
来源：
SCIENCE OF SINTERING | 2008年 / 40卷 / 03期
关键词：
SiC; MoSi2; Laser irradiation; Oxidation; Sublimation;
D O I：
10.2298/SOS0803271A
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：
The influence of continuous IR laser irradiation (lambda = 1064 nm, P = 240 mW) on SiC-MoSi2, composite ceramics was investigated by X-ray diffraction, electron microscopy. atomic force microscopy, and X-ray microanalysis. The irradiation of specimens was carried out in air. It was established that, due to heating of the surface under laser irradiation. oxidation of SiC and MoSi2 and sublimation of SiO (SiO2) and MoO3 take place. Depending oil the content of the components in the ceramics and the irradiation time,SiO2 or MoO3 layers form oil the surface or disappear from it. For a long irradiation time, the oxidation and cleaning of the surface (sublimation of oxides) are cyclic in character.
引用
收藏
页码：271 / 281
页数：11
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