서지주요정보
반응 결합 질화규소의 소결현상에 관한 연구 = A study on the sintering phenomena of reaction bonded silicon nitride
서명 / 저자 반응 결합 질화규소의 소결현상에 관한 연구 = A study on the sintering phenomena of reaction bonded silicon nitride / 이충국.
저자명 이충국 ; Lee, Chung-Goog
발행사항 [서울 : 한국과학기술원, 1985].
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소장정보

등록번호

4103279

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 8539

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초록정보

Sintering phenomena of reaction bonded silicon nitride were investigated to study the microstructural development by both densification and α/β phase transformation, and to study the interdependency between microstructures and mechanical strength. Reaction bonded silicon nitride samples were prepared with an overall compact density of 66% with uniformly dispersed porosity. After infiltration of MgO into RBSN, sintering experiments were achieved at isothermal temperatures between 1650-1820℃. Alpha-phases with high specific surface area, which were grown into pores of RBSN, soluted and transformed rapidly to beta-$Si_3N_4$ leaving large pores behind, before reaching the sintering temperature. But no development of β-prism was shown. The α/β phase transformation was more rapid process than densification. However, it's rate was highly dependent on sintering temperature. Densification just after phase transformation decreased the porosity and increased the interlocking of β-prism, and so increased the mechanical strength. Mechanical strength was markedly increased after sintering of RBSN, due to the interlocking of grown β-prisms.

서지기타정보

서지기타정보
청구기호 {MMS 8539
형태사항 [iii], 40 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Chung-Goog Lee
지도교수의 한글표기 : 김종희
지도교수의 영문표기 : Chong-Hee Kim
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 38-40
주제 Silicon nitride.
Phase transformations (Statistical physics)
Strength of materials.
Sintering.
반응 소결. --과학기술용어시소러스
상변태. --과학기술용어시소러스
치밀화. --과학기술용어시소러스
강도. --과학기술용어시소러스
질화규소.
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