Formation Mechanism of Titanium Silicon Carbide: The Effect of Different Composition of Starting Materials

2nd Materials Research Society of Indonesia Meeting

Solihin^1 ; Mursito, Anggoro Tri^1 ; Sun, Zhengming^2

Indonesian Institute of Science, Research Center for Geotechnology, Komplek LIPI, Jl Sangkuriang, West Java, Bandung

40135, Indonesia^1

National Institute of Advanced Industrial Science and Technolog (AIST), Moriyama-ku, Aichi, Nagoya

463-8560, Japan^2

关键词: Formation mechanism;    Intermediate phasis;    Phase purity;    SEM-EDS;    Ti3SiC2;    Titanium silicon carbide;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/214/1/012023/pdf
DOI  :  10.1088/1757-899X/214/1/012023

来源: IOP

【 摘 要 】

Titanium silicon carbide (Ti3SiC2) is a kind of ceramic that has physical property value similar with metal. Ti3SiC2has been synthesized through various methods based on solid state reaction. Although Ti3SiC2has been synthesized through various methods by using various starting materials consisting titanium (Ti), silicon (Si), and carbon (C) the mechanism of Ti3SiC2formation through sintering has not fully understood. The aim of this research is to reveal the mechanism happening during sintering. Two composition of starting material was used, 2Ti/2Si/3TiC and 5Ti/2Si/3C. The analysis through XRD and SEM-EDS shows that the formation of intermediate phases, TiC and Ti5Si3, takes place prior to the formation of Ti3SiC2. In other words, Ti3SiC2can only be formed through solid state reaction between TiC and Ti5Si3. Since TiC has already available in the system 2Ti/2Si/3TiC, the phase purity of Ti3SiC2in 2Ti/2Si/3TiC is always higher than that of 5Ti/2Si/3C.