서지주요정보
Cu계 마찰재에서 소결 온도와 소결 압력에 따른 소결 성질과 마찰 특성 = Effect of sintering temperature and pressure on the sintered and friction properties of Cu base friction material
서명 / 저자 Cu계 마찰재에서 소결 온도와 소결 압력에 따른 소결 성질과 마찰 특성 = Effect of sintering temperature and pressure on the sintered and friction properties of Cu base friction material / 김주완.
발행사항 [서울 : 한국과학기술원, 1987].
Online Access 제한공개(로그인 후 원문보기 가능)원문

소장정보

등록번호

4104394

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 8708

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

리뷰정보

초록정보

Sintered and friction properties of cu base sintered friction material have been investigated. Powder mixture of 71.4Cu, 11.7Fe, 4.4 $SiO_2$, 9.9 graphite, 0.5 $MoS_2$, and 2.1 Pb (in wt%) have been compacted under 2.3ton /$cm^2$(230 MPa) in a floating die into cylindrical pellets of 20.2mm diameter and approximately 2mm height. The pellets separated by backing steel plates have been diffusion bonded and sintered at various temperatures (800, 900, 950 and 965$^\circ{C}$) under various pressures (15, 20, 30 Kg/$cm^2$). Under constant pressure, the porosity decreased, and the radius of sintered compact and sintered hardness increase with temperature; a remarkable change is observed by raising temperature from 950$^\circ{C}$ to 965$^\circ{C}$. As the pressure increase under constant temperature, sintered density, compact radius and sintered handness increases gradually. Under constant pressure, no appreciable difference of the sintered density is observed in the specimens sintered at 900$^\circ{C}$ and 950$^\circ{C}$. However, a notable increase of density results by raising the temperature to 965$^\circ{C}$. Such salient difference of sintered properties in the specimens sintered at 965$^\circ{C}$ and at other temperatures would be due to the change of melt content and properties at the sintering temperatures. Friction properties of sintered specimens have been measured by a constant speed friction tester under 10 Kg/$cm^2$ with 7.8m/sec for 10min (500 cycles). Commercial sintered friction material has also been tested under the same condition. As the sintered hardness increases, friction coefficient and wear rate decreases slightly The specimens sintered under 20-30 Kg/$cm^2$ at 900$^\circ{C}$ or 965$^\circ{C}$ show similar friction and wear properties to those of commercial material.

서지기타정보

서지기타정보
청구기호 {MMS 8708
형태사항 iv, 59 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Joo-Wan Kim
지도교수의 한글표기 : 강석중
지도교수의 영문표기 : Suk-Joong L. Kang
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 57-59
주제 Sintering.
Density.
Porosity.
Hardness.
가압 소결. --과학기술용어시소러스
구리 합금. --과학기술용어시소러스
기공 (주조) --과학기술용어시소러스
경도 (성질) --과학기술용어시소러스
QR CODE qr code