Reaction Synthesis of Ti<sub>3</sub>AlC<sub>2</sub> at High Temperature

,; ,; ,; ,; ,; ,; ,; ,; ,; ,

doi:2003.40.1.87

J. Korean Ceram. Soc. > Volume 40(1); 2003 > Article

Journal of the Korean Ceramic Society 2003;40(1): 87.
doi: https://doi.org/10.4191/kcers.2003.40.1.087

고온 반응에 의한 Ti₃AlC₂합성

황성식, 박상환¹, 한재호¹, 한경섭¹, 김태우²

국민대학교 자동차공학과
¹한국과학기술연구원 복합기능세라믹스연구센터
²국민대학교 기계설계학과

Reaction Synthesis of Ti₃AlC₂ at High Temperature

ABSTRACT

$Ti_3AlC_2$was synthesized from TiCx and Al powder as a starting materials at the temperature range between$800^{circ}C;and;1500^{circ}C$. The vacuum sintering and hot pressing methods were imployed to synthesize$Ti_3AlC_2$. The high purity$Ti_3AlC_2$was synthesized using TiCx and Al powder as starting materials without formation of Ti-Al intermetallic compound and Al-C compound.$Ti_2$AlC and$Ti_3AlC_2$were preferentially synthesized at$800^{circ}C$and above$1200^{circ}C$, respectively.$Ti_2$AlC formed at low temperature was transformed to$Ti_3AlC_2$by further reaction with TiC. In this study, the synthesis mechanism for$Ti_3AlC_2$was proposed. The synthesized$Ti_3AlC_2$showed the nano laminating structure consisting of$Ti_3AlC_2$crystal with the thickness of 45~120 nm.ᨑⴀ଀㘱㜮㔸㔰㔹㬅K䍄乍툗ਆ

Key words: ${Ti_3}{AlC_2}$, TiCx, Nano laminating structure