Affiliation:
1. University of Science and Technology Beijing
Abstract
Al-Si3N4-Al2O3composite was prepared using tabular corundum, white fused corundum,α-Al2O3fine powder and Si3N4fine powder as raw materials and phenolic resin as low temperature binder under nitrogen atmosphere at 1 300 °C for 8 h. The results show that the main reinforced phase of Al-Al2O3is Al4O4C in Al-Al2O3specimens without Si3N4fine powder adding,the main reinforced phase of Al-Si3N4-Al2O3is SIALON while small quantity of Al,Si plastic phase presents in Si3N4adding Al-Al2O3specimens. Si5AlON7(Z=1) is formed in Al-Si3N4-Al2O3specimens at low temperature (1 300 °C), which presents good comprehensive properties.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
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