Simultaneous Consolidation of Titanium Diboride with Self-Propagating High-Temperature Synthesis, Direct Contact-Heating, and Pressure: Modeling of Temperature Distribution and the Relationship between Applied Energy and Densification

,; ,; ,; ,; ,; ,

J. Korean Ceram. Soc. > Volume 32(7); 1995 > Article

Journal of the Korean Ceramic Society 1995;32(7): 817.

$TiB_2$ SHS 및 직접 접촉가열에 의한 동시 가압법 : 온도분포 모델링 및 공급에너지와 치밀화 관계

정진근, 조건, 이형복¹

한국과학기술원 재료공학과
¹명지대학교 무기재료공학과

Simultaneous Consolidation of Titanium Diboride with Self-Propagating High-Temperature Synthesis, Direct Contact-Heating, and Pressure: Modeling of Temperature Distribution and the Relationship between Applied Energy and Densification

ABSTRACT

TiB2 was simultaneously synthesized and densified with concurrent self-propagating high-temperature synthesis and direct contact-heating by electrcial power input and pressure. Density of TiB2 synthesized by self-propagating high-temperature synthesis and consolidated simultaneously by direct contact-heating and pressure was maximum 80% of the theoretical density (4.52g/㎤). Temperature profile was analyzed by solving heat balance equation with numerical method (FTCS method). The temperature of the sample was sufficiently raised to that temperature sufficient to be densified. It was ascertained that the density of the SHS synthesized TiB2 is exponentially proportinal to the input thermal energy per mass.

Key words: $TiB_2$, SHS, Consolidation, Temperature