Research on Mullite-Corundum-Aluminium Titanate Composite

Abstract:

Mullite-aluminium titanate-corundum composite was prepared at 1300°C with refractory clay, aluminium titanate and high alumina grog as raw material, molded at pressure of 50MPa. Effect of raw material ratio on sintering and themal shock resistance of the mullite-aluminium titanate-corundum composite was researched by measurements of apparent porosity, bending strength and residual strength after water-cool, and analyses of XRD and SEM. The results showed that as refractory clay content, apparent porosity of samples decrease, bulk density and bending strength increase. When the weight ratio of refractory clay, aluminium titanate and high alumina grog is 60/10/30, themal shock resistance of sample is excellent, The XRD and SEM analysis results indicated that the mechanical and thermal proprieties are relative to the microstructure and crystal phases of the composite materials.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 308-311
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.308
• Online since: January 2013
• Authors: Yuzhou Huang, Jing Long Bu, Yue Jun Chen, Zhi Fa Wang
• Keywords: Aluminium Titanate, Composite, Corundum, Mullite, Thermal Shock Resistance

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