Paper Title:
High-Temperature Compressive Deformation of SiAlON Polycrystals Prepared without Additives
  Abstract

The high-temperature deformation of dense nano-sized Ca-α SiAlON and submicron- sized β-SiAlON polycrystals were investigated by compression tests. These polycrystals were fabricated from Ca-α SiAlON and β-SiAlON nano powders respectively, and contained almost no intergranular glass phase. Both SiAlONs exhibited large plastic deformations with the stress exponent n ~1 in the higher stress region, and n ~2 in the lower stress region. Shear-thickening creep (n < 1), which has been reported in liquid contained SiAlONs, was not observed.

  Info
Periodical
Edited by
Katsutoshi Komeya, Yi-Bing Cheng, Junichi Tatami and Mamoru Mitomo
Pages
117-120
DOI
10.4028/www.scientific.net/KEM.403.117
Citation
K. Chihara, D. Hiratsuka, J. Tatami, F. Wakai, K. Komeya, "High-Temperature Compressive Deformation of SiAlON Polycrystals Prepared without Additives", Key Engineering Materials, Vol. 403, pp. 117-120, 2009
Online since
December 2008
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$32.00
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