Activated combustion features in the Mo-Si-C-promoter system and synthesis of MoSi2-SiC composite powders

被引：7
|
作者：
Hambartsumyan, A. A.
Khachatryan, H. L.
Harutyunyan, A. B.
Kharatyan, S. L.
机构：
[1] Natl Acad Sci, AB Nalbandyan Inst Chem Phys, LAb Kinet SHS Proc, Yerevan 0014, Armenia
[2] Yerevan State Univ, Dept Phys Chem, Yerevan 0025, Armenia
来源：
MATERIALS RESEARCH BULLETIN | 2007年 / 42卷 / 12期
关键词：
ceramics; composite; chemical synthesis; electron microscopy; microstructure;
D O I：
10.1016/j.materresbull.2007.01.019
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
opportunities on combustion synthesizing the MoSi2-SiC ceramic composites in a wide range of compositions under the chemical activated mode were studied. Molybdenum, silicon powders and carbon black were used as initial reagents, and Teflon was used as an activating additive. It was established that Teflon displays a dual (kinetic and thermal) impact on the interaction between reagents. The phasic character of the combustion process evolution, being characterized by low- and high-temperature regimes, was revealed. The end-products were subjected to SEM, XRD and chemical analyses. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2082 / 2089
页数：8
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