Preparation and sintering of silica-coated silicon carbide composite powder

Hirokazu Katsui, Zhenhua He, Takashi Goto

研究成果: Article査読

3 被引用数 (Scopus)

抄録

SiO2-coated SiC powders were prepared via rotary chemical vapor deposition and consolidated by spark plasma sintering. Thin amorphous SiO2 layers were deposited uniformly on SiC powders at 948 K at deposition time from 2.7 to 7.2 ks. The resultant SiO2-coated SiC powders were sintered, and the effects of the sintering temperature on the phase, morphology, relative density, and mechanical property were investigated. The SiO2-coated SiC sintered body fabricated at 1923 K was nearly fully densified, with a mosaic structure consisting of small SiC particles and a thin SiO2 matrix, and exhibited high hardness (HV = 17.1 GPa) and toughness (KIC = 8.4 MPa m1/2).

本文言語English
ページ(範囲)111-116
ページ数6
ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
63
3
DOI
出版ステータスPublished - 2016 3

ASJC Scopus subject areas

  • 機械工学
  • 産業および生産工学
  • 金属および合金
  • 材料化学

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