Fabrication of Fiber-Reinforced Composites by High Pressure Self-Combustion Sintering Method

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J. Korean Ceram. Soc. > Volume 37(5); 2000 > Article

Journal of the Korean Ceramic Society 2000;37(5): 444.

고압 자전연소 소결법을 이용한 섬유강화 복합체의 제조

방환철, 고철호, 임동원, 김봉섭, 최태현¹, 윤존도

경남대학교 대학원 재료공학과
¹대구공업대학교 세라믹공학과

Fabrication of Fiber-Reinforced Composites by High Pressure Self-Combustion Sintering Method

ABSTRACT

Dense composites of titanium matrix and Al2O3 matrix with reinforcements of carbon or titanium carbide fibers were successfully fabricated by high-pressure self-combustion sintering method or combustion reacton under 30 MPa of uniaxial pressure with an aid of external heating in vaccum. It was found that the fibers were uniformly distributed in the matrix, and aligned in a phase perpendicular to the pressure axis. As a moel ratio of Ti/C or reaction time increased, the density of Ti-matrix composite increased Micro pores around fibers could be removed by using clean carbon fibers without sizing agent on their surface. The evolution of carbide fibers from carbon fibers was observed. The composition of the various phases around fibers were analyzed.

Key words: Carbon fibers, Composites, Microstructure, Self-propagating high-temperature synthesis, High-pressure self-combustion sintering