Oxidation Characteristics of Boron Carbide

Abstract

Abstract: The oxidation characteristics of boron carbide during sintering at 400~800℃ in air wereinvestigated. The phase structure and surface morphology of oxidized boron carbide were analyzedand observed using X-ray diffraction and scanning electron microscope, respectively. The resultsshow that the oxidation of boron carbide begins at about 600℃. After oxidized, the boron carbidepartially transformed into amorphous boron oxide. The oxidization process is a thermally activatedprocess, whose activation energy Q=17．17kJ／mol．

Key words: boron carbide, oxidation, amorphous, boron oxide

WU Zhengan,GU Mingyuan,ZHANG Guoding. Oxidation Characteristics of Boron Carbide[J]. Journal of Inorganic Materials.

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Oxidation Characteristics of Boron Carbide

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