Sintering Mechanism of MgAl2O4-SiC Composites in Reduction Atmosphere

Jun Cong Wei; Chun Hui Gao; Xiao Juan Yang; Liang Huo; Bao Zhong Zhao; Jun Bo Tu

doi:10.4028/www.scientific.net/AMR.538-541.2368

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Kinetic Spectrophotometric Determination of Selenium (IV) by its Catalytic Effect on the Oxidation of Acid Chrome Blue K by Hydrogen Peroxide
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Study on Corrosion Resistance of Al, Ni Brass with Processing State
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Supercritical CO₂ Extraction of Tea Seed Oil from Camellia Seeds and Composition Analysis of Tea Seed Oil Extracts
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Structure and Performance of YSZ Thermal Barrier Coatings Irradiated by High Intensity Pulsed Ion Beam
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Synthesis, Characterization and Catalytic Application of Mesoporous PW/SBA-15 for Epoxidation of α-Pinene
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Thermodynamics and Dynamics of Nitrogen Increasing in LF Refining Process
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Sintering Mechanism of MgAl₂O₄-SiC Composites in Reduction Atmosphere

Abstract:

MgAl2O4-SiC Composites were prepared by using magnesium aluminate spinel and silicon carbide powder as starting materials and the sintering mechanism was investigated at 1600°C in reduction atmosphere. Sintered samples were analyzed using XRD, SEM and EDS. The results show that Alumina-rich spinel and SiCN are formed due to the reactions between spinel and SiC. Weight loss of samples was detected due to SiO formation and volatilization. The bulk density of samples decreases and apparent porosity increases as increasing the content of SiC.