[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.4191/KCERS.2009.46.5.484

Fracture Behaviors and Mechanical Properties of SiC_f/SiC Composites Prepared by the Whisker Growing Assisted CVI Process

Kang, Seok-Min (Nuclear Materials Research Division, Korea Atomic Energy Research Institute)
Kim, Weon-Ju (Nuclear Materials Research Division, Korea Atomic Energy Research Institute)
Yoon, Soon-Gil (Department of Materials Engineering, Chungnam National University)
Park, Ji-Yeon (Nuclear Materials Research Division, Korea Atomic Energy Research Institute)

Publication Information

Journal of the Korean Ceramic Society / v.46, no.5, 2009 , pp. 484-487 More about this Journal

Abstract

$SiC_f$ /SiC composites with whiskers and pyrolytic carbon (PyC) coated whiskers in the matrix were fabricated for enhancement of the fracture behaviors by the whisker growing assisted chemical vapor infiltration (WA-CVI) process, respectively. $SiC_f$ /SiC composites were also prepared by the conventional CVI process as reference material. The mechanical properties and fracture behaviors were analyzed by comparison of the two types of composites prepared by WA-CVI and conventional CVI. The densities of $SiC_f$ /SiC composites were in the range of $2.6{\sim}2.65g/cm^3$ . The flexural strengths of composite with whiskers and with those coated by PyC were 650 MPa and 600 MPa, respectively. The tensile strength of composites with whiskers was ${\sim}285$ MPa.

Keywords

$SiC_f$ /SiC composite; Chemical vapor infiltration; Whisker; PyC; Fracture behaviors; Mechanical property;

Citations & Related Records

Times Cited By SCOPUS : 1

Reference
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KSCI

Fracture Behaviors and Mechanical Properties of SiCf/SiC Composites Prepared by the Whisker Growing Assisted CVI Process Whisker Growing Assisted 화학침착 공정으로 제조된 SiCf/SiC 복합체의 파괴거동과 기계강도 평가

Fracture Behaviors and Mechanical Properties of SiC_f/SiC Composites Prepared by the Whisker Growing Assisted CVI Process