Paper Title:
Thermo-Mechanical Properties and Microstructure of Al2O3-SiC-SiAlON Composites
  Abstract

The composite specimens have been prepared using fused corundum, silicon and bauxite-based β-SiAlON powder as starting materials. The physical properties, high temperature modulus of rupture (HMOR), thermal shock resistance (TSR), phase composition and microstructure of the specimens after firing at 1500°C have been studied. The results show: (1) Al2O3-SiC-SiAlON composites are sintered well at 1500°C. (2) HMOR and TSR of the specimens increase with increase of Si content, high temperature properties are further increased with appropriate β-SiAlON addition. (3) The in-situ formed SiC and O’-SiAlON fill in the interstices of corundum skeleton structure, forming interlocking network structure, thus creating strengthening and toughening effects.

  Info
Periodical
Advanced Materials Research (Volumes 295-297)
Chapter
Chapter 1: Materials Properties
Edited by
Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu
Pages
161-164
DOI
10.4028/www.scientific.net/AMR.295-297.161
Citation
X. H. Liu, E. X. Xu, C. J. Zhou, "Thermo-Mechanical Properties and Microstructure of Al2O3-SiC-SiAlON Composites", Advanced Materials Research, Vols. 295-297, pp. 161-164, 2011
Online since
July 2011
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Price
$32.00
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