서지주요정보
저압화학기상침투법에 의한 탄소/탄소 복합재료의 치밀화에 관한 연구 = Densification of carvon/carbon composite by low-pressure chemical vapour infiltration
서명 / 저자 저압화학기상침투법에 의한 탄소/탄소 복합재료의 치밀화에 관한 연구 = Densification of carvon/carbon composite by low-pressure chemical vapour infiltration / 안치원.
저자명 안치원 ; Ahn, Chi-Won
발행사항 [대전 : 한국과학기술원, 1994].
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소장정보

등록번호

8004660

소장위치/청구기호

학술문화관(문화관) 보존서고

MCM 94004

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

리뷰정보

초록정보

Carbon/carbon composites were fabricated by low-pressure chemical vapour infiltration (LP-CVI) method using a propane gas. The effects of deposition temperature (900, 1100 ℃), propane concentration (5, 100 %), gas flow rate (10, 100 SCCM) and pressure (5, 50 torr) on the densification of phenol-based carbon/carbon preform were studied utilizing experimental design method. The bulk density of carbon/carbon composites increased in the range from 1 % to 9 % and their apparent porosities decreased in the range from 20 % to 50 %. According to the result of the analysis of variance (ANOVA) of experimental data an optimum processing condition for densification under given conditions were found to be 1100℃ (temperature), 100 % (concentration of propane), 100 SCCM (flow rate), and 5 torr (pressure). On the basis of result of experimental design, the effect of deposition temperature on the densification was also studied in the range of temperature between 900 ℃ and 1200 ℃ at an interval of 100℃ with 100% propane, 100 SCCM, 5 torr. The maximum bulk density of 10.5 % was achieved for the sample deposited at 1000 ℃. In the case of the sample deposited at 900 ℃, the bulk density was lower than that of the sample deposited at 1000 ℃ due to lower rate of deposition. In the case of the sample deposited at 1100 ℃ the bulk density was lower than that of the sample deposited at 1000 ℃due to blocking of pores on the surface which arises from higher rate of surface deposition.

서지기타정보

서지기타정보
청구기호 {MCM 94004
형태사항 iii, 61 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : Data table
저자명의 영문표기 : Chi-Won Ahn
지도교수의 한글표기 : 조건
지도교수의 영문표기 : Kurn Cho
학위논문 학위논문(석사) - 한국과학기술원 : 무기재료공학과,
서지주기 참고문헌 : p. 51-56
주제 Seepage.
Composite materials.
Porosity.
복합 재료. --과학기술용어시소러스
분말 압축. --과학기술용어시소러스
Densification.
화학 기상 침투법.
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