Synthesis of Al₂OC Ceramic Powder by a Carbothermal Reduction Process

Abstract:

A1₂OC ceramic powder was successfully synthesized via a carbothermal reduction method using Al₂O₃, B₂O₃ and activated carbon powders as raw materials. The effects of synthesis temperature on the phase transformation and micro-morphology of A1₂OC were investigated by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results indicated that the content of A1₂OC in the products was increased with the increasing heating temperature. The optimized process for preparing A1₂OC was heating the mixtures at 1700 °C for 2 h in argon flow. A1₂OC particles synthesized at 1700 °C were hexagon plate-like with thickness of 5 μm and size of about 50 μm. Keywords: A1₂OC, synthesis, microstructure

• Periodical: Advanced Materials Research (Volumes 881-883)
• Pages: 1017-1020
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.881-883.1017
• Online since: January 2014
• Authors: Shuang Shuang Ding, Peng Cui, Hong Xi Zhu, Cheng Ji Deng*, Chao Yu
• Keywords: A1₂OC, Microstructure, Synthesis

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