서지주요정보
반응결합 질화규소의 소결시 규소의 거동에 관한 연구 = A study on the behaviour of Si during sintering of reaction bonded silicon nitride
서명 / 저자 반응결합 질화규소의 소결시 규소의 거동에 관한 연구 = A study on the behaviour of Si during sintering of reaction bonded silicon nitride / 김재룡.
저자명 김재룡 ; Kim, Jae-Ryong
발행사항 [서울 : 한국과학기술원, 1986].
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소장정보

등록번호

4103640

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 8607

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초록정보

The mixture of α-$Si_3N_4$ and Si powder was used to investigate effects of unreacted Si on α/β transformation densification process, and strength of Sintered Reaction Bonded Silicon Nitride. In order to avoid nitridation of Si, α-$Si_3N_4$ and Si mixture compacts were heat-treated in Ar. β-fraction increased with Si additions and heat-treating time sigmoidally at 1700℃ in Ar. As β-fraction increased, morphology of equiaxed α$-Si_3N_4$ changed elongated. Also, large β phase grown into Si was observed. In case of no Si addition to $Si_3N_4$, α/β transformation was not occurred and morphology had not changed. During heat-treating of RBSN, the same results were obtained, but significant decomposition of $Si_3N_4$ was observed because of high surface energy of α-needles and α-matte. During sintering of RBSN, amount of Si increased with sintering time and sintering temperature. But this phenomenon was not occurred significantly in Sintered Silicon Nitride. The Sintered specimens with and without 5wt% Si addition had 53kg/㎟ and 73kg/㎟ in three point bending strength, respectively.

서지기타정보

서지기타정보
청구기호 {MMS 8607
형태사항 [iv], 47 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Jae-Ryong Kim
지도교수의 한글표기 : 김종희
공동교수의 한글표기 : 김호기
지도교수의 영문표기 : Chong-Hee Kim
공동교수의 영문표기 : Ho-Gi Kim
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 42-47
주제 Sintering.
Silicon nitride.
Metals --Heat treatment.
소결. --과학기술용어시소러스
질화 규소. --과학기술용어시소러스
치밀화. --과학기술용어시소러스
열 처리. --과학기술용어시소러스
Densification.
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