Paper Title:
Fabrication of Pressureless Sintered β-Sialon-ZrO2 Composites
  Abstract

β-sialon-ZrO2 composites with Si5AlON7 or Si4Al2O2N6 bonding phase were prapared in N2 atmosphere at 1550°C with Si, Al2O3, AlN and ZrO2 (Ca) as raw materials by reaction in situ pressureless sintering. Effect of Z value and content of β-sialon batch on its sintering performance, phase composition, microstructure, and thermal expansion character were investigated. Results showed that the phase of Si5AlON7 was formed in samples with β-sialon designing Z=1, and phases of Si5AlON7 and Si4Al2O2N6 were formed in samples with β-sialon designed Z=2 and β-sialon designed Z=3, respectively and Bending strength of samples increase with content of β-sialon batch. When content of β-sialon batch equals 10wt%, 15wt% and 15% respectively, the samples with β-sialon designed Z=1, Z=2, and Z=3 have lower apparent porosity, microstructure of homogeneous and compact and lower thermal expansion coefficient, respectively.

  Info
Periodical
Advanced Materials Research (Volumes 284-286)
Chapter
Composites
Edited by
Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu
Pages
335-338
DOI
10.4028/www.scientific.net/AMR.284-286.335
Citation
J. Zhang, J. L. Bu, R. L. Wang, Z. F. Wang, "Fabrication of Pressureless Sintered β-Sialon-ZrO2 Composites", Advanced Materials Research, Vols. 284-286, pp. 335-338, 2011
Online since
July 2011
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Price
$32.00
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