서지주요정보
질화규소 결합 탄화규소질 요업재료의 제조 = Fabrication of $Si_3N_4$ bonded SiC ceramics
서명 / 저자 질화규소 결합 탄화규소질 요업재료의 제조 = Fabrication of $Si_3N_4$ bonded SiC ceramics / 정주희.
저자명 정주희 ; Jeong, Joo-Hee
발행사항 [서울 : 한국과학기술원, 1981].
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소장정보

등록번호

4001282

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 8122

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

It is known that $Si_3N_4$ bonded SiC has almost all the valuable properties needed for the high temperature material and thus has very wide range of applicability. Si powder and two different sized (70μ and 250μ respectively) SiC powder were used as the raw materials. Specimens were prepared by heating the green compact made of the raw materials in the nitrogen atmosphere. PVA (Polyvinyl Alcohol) was used as the temporay organic binder. The bonding of SiC particles is brought about with the formation of RBSN (Reation Bonded Silicon Nitride). The influences of the variation of the relative amounts of the raw materials, the amount of the organic binder, and the compacting pressure on the density and the bend strength of the specimens were investigated. It was shown that the calculation of the amount of the nitridation of Si is somewhat complicated matter since some portion of the organic binder reacts with the Si during the firing process. Fixing the Si amount to weight percents, the distributions of the size of the SiC particles that gives the maximum density and the maximum strength was gained through experiments. It was observed that the two distributions were not equal to each other. As the amount of Si increased, the reaction amount of Si with nitrogen and the strength increased. It was observed that high compacting pressure gives both high density and high strength. The fracture mode was intergranular for the most part and the transgranular fracture was scarcely observed.

서지기타정보

서지기타정보
청구기호 {MMS 8122
형태사항 v, 36 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Joo-Hee Jeong
지도교수의 한글표기 : 김종희
지도교수의 영문표기 : Chong-Hee Kim
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 31-33
주제 Silicon nitride.
Silicon carbide.
Ceramics.
Density.
Bending.
세라믹. --과학기술용어시소러스
밀도. --과학기술용어시소러스
굽힘 (소성 가공) --과학기술용어시소러스
실화 규소.
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