서지주요정보
90%Cu-10%Sn 소결체의 성질에 미치는 입도 분포의 영향 = Effect of powder size distribution on some properties of sintered 90%Cu-10%Sn
서명 / 저자 90%Cu-10%Sn 소결체의 성질에 미치는 입도 분포의 영향 = Effect of powder size distribution on some properties of sintered 90%Cu-10%Sn / 이도재.
발행사항 [서울 : 한국과학기술원, 1975].
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소장정보

등록번호

4100079

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 7508

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

리뷰정보

초록정보

The effects of powder size and heating rate on various properties of sintered Cu-10% Sn was investigated. Experiments were carried out on four combinations of copper and tin powder sizes by mixing copper powders of -150 mesh and -270 mesh with -230 - +325 mesh and -400 mesh tin powders. The sintering temperatures were 797℃ and 807℃ with sintering times ranging from 0 to 15 minutes. Generally the growth of Cu-Sn compacts occurred within the first 1 minute of sintering with subsequent slow shrinkage. The growth was largely dependent on the size of tin powder with larger growth occurring for larger tin powder size. Faster heating rate caused larger growth. The observed dependence of growth of particle size and heating rate can be most consistently explained by the penetration of tin-rich liquid phase into the copper particle boundaries. The amount of open porosity as indicated by the amount of oil impregnation was larger for samples of larger the powder. Slow heating reduced the open porosity significantly while the total porosity is little affected. Radial crushing strength was larger for fine tin powder samples. Microstructures show that larger grain growth occurred around the pores which were originally tin particle site and the amount of tin rich phase decreased with fine powder size. Therefore, more uniform structures can be obtained with finer powders.

서지기타정보

서지기타정보
청구기호 {MMS 7508
형태사항 iii, 54 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Doh-Jae Lee
지도교수의 한글표기 : 윤덕용
지도교수의 영문표기 : Duk-Nong Yoon
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 52-54
주제 Copper alloys.
Microstructure.
Sintering.
Porosity.
구리 합금. --과학기술용어시소러스
소결체. --과학기술용어시소러스
미세 구조. --과학기술용어시소러스
입도 분포. --과학기술용어시소러스
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