Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Application of Sol-Gel Coating Process in Pressureless Sintering of Si3N4 and Their Properties

알루미나 졸-겔 코팅 공정을 이용한 질화규소의 상압소결 및 물질 특성

  • 임경란 (한국과학기술연구원 세라믹스연구부) ;
  • 임창섭 (한국과학기술연구원 세라믹스연구부)
  • Published : 1994.01.01
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Abstract

Si3N4 ceramics could be densified above 3.2g/㎤ with pressureless sintering at below 178$0^{\circ}C$ by coating Si3N4 and Y2O3 powder with an alumina sol. Substitution a portion of Al2O3 with AlN improved densification. Additional milling of the coated powder in large improvement in bending strength greater than 800 MPa (4-point).

Keywords

References

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