Journal
CERAMICS INTERNATIONAL
Volume 44, Issue 1, Pages 890-893Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2017.10.017
Keywords
MAX phase; Powder; Synthesis; Sintering
Categories
Funding
- SERB-DST (Govt. of India) [SR/S3/ME/0046/2012]
Ask authors/readers for more resources
Ti3GeC2 is one of the potential MAX phase compounds, for which, production and processing methods are yet to be optimized. There are very few reports on the synthesis of this compound, which are mostly in bulk form and contain large impurities. Present investigation attempts to synthesize Ti3GeC2 powder with improved phase purity and to understand phase evolution sequences. Synthesis was characterized as a liquid-solid reaction process; initiated after melting of Ge particles. At low temperature (similar to 1200 degrees C), yield was found to be very low, and the product had several intermetallics and carbides. At relatively higher temperature (at 1500 degrees C), the conversion was found to be very high and particles were mostly finer than 10 mu m. Phase purity was further increased (over 96 wt%) during sintering stage, as observed through x-ray diffraction analysis where impurity peaks were very small. Ti3GeC2 powder was found to exhibit poor densification behavior during pressureless sintering; however, it showed slow grain growth characteristics too, a highly desired feature for structural applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available