Journal
CERAMICS INTERNATIONAL
Volume 30, Issue 8, Pages 2289-2294Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2004.01.009
Keywords
Ti3SiC2; X-ray diffraction; pressureless sintering in vacuum; composition optimization
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Pressureless sintering in vacuum was applied to synthesize Ti3SiC2 from elemental powders of Ti, Si and C. Based on the phase compositions and purities of the products obtained by X-ray diffraction, the elemental powders composition and sintering condition were optimized. It was found that the sample sintered at 1450degreesC for 240 min from a mixture of 3Ti/Si-1.75/2C (molar ratio) contained Ti3SiC2 with the volume fraction as high as 93%. It was proposed that loss of Si through gaseous vaporization and contamination of C might be the main obstacles against obtaining high-purity material by this way. (C) 2004 Elsevier Ltd and Techna S.r.l. All rights reserved.
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