Microwave activated combustion synthesis of bulk cobalt silicides

CoSi and CoSi 2 bulk intermetallic compounds have generated some interest as potential electronic and structural materials. Combustion synthesis has been shown to be an effective method for the preparation of many intermetallic compounds, but requires a high adiabatic temperature to propagate. Therm...

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Bibliographic Details
Published in:Journal of alloys and compounds 2005-05, Vol.394 (1), p.160-167
Main Authors: Jokisaari, J.R., Bhaduri, S., Bhaduri, S.B.
Format: Article
Language:English
Subjects:
Combustion
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Intermetallic compounds
Materials science
Materials synthesis
materials processing
Microwave activation
Physics
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Summary:CoSi and CoSi 2 bulk intermetallic compounds have generated some interest as potential electronic and structural materials. Combustion synthesis has been shown to be an effective method for the preparation of many intermetallic compounds, but requires a high adiabatic temperature to propagate. Thermodynamic calculations show that cobalt silicides require activation. Microwave activation is attractive for combustion synthesis reactions, allowing rapid heating and cooling rates, volumetric heating, and direct absorption of energy by the reaction zone. In this study, a microwave activated combustion synthesis process was used to produce CoSi and CoSi 2 bulk cobalt silicides. Thermal activation and conventional combustion synthesis were also attempted, and the results of the three processes are compared.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2004.10.024