Reaction Sintering of Mg₂Si Intermetallic Compound by Microwave Irradiation

Abstract:

In order to reduce the oxidizing and volatilizing caused by Mg element in the traditional methods for synthesizing Mg₂Si compounds, solid state phase reaction at low temperature was introduced by microwave field. XRD was used to characterize the powders. At the same time, the influences of parameters during the synthesis processing were discussed. The results suggest that the heating profile is also dependent on the initial green density and higher green density provides lower heating rate while power setting are fixed and the oxidation of Mg can be rest rained by changing microwave heating programs. It was found that high purity Mg₂Si intermetallic compound can be obtained with excessive content of 8at% Mg from the stoichiometric Mg₂Si, 853K and 30min

• Periodical: Advanced Materials Research (Volumes 512-515)
• Pages: 1683-1686
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.512-515.1683
• Online since: May 2012
• Authors: Chang Kun Du, Shu Cai Zhou
• Keywords: Mg₂Si, Microwave Synthesis, Solid State Reaction Method, Thermoelectric Material

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