Publication Date:
2011-07-16
Description:
6H-SiC powder mixed with Si 3 N 4 , Al 2 O 3 , Y 2 O 3 , and AlN was sintered in a spark plasma sintering (SPS) equipment. The 6H→3CSiC transformation was concerned. Research results indicated the polytype transformation completed in less than 30 s by imposing a 14 458 W (6.2 V, 2332 A) transitory DC current at 1700°C upon cooling down from 2000°C. The fast transformation kinetic and the significant 3C-SiC grain growth accompanying the phase transformation were suspected to be correlated with the pulsed SPS direct current.
Print ISSN:
0002-7820
Electronic ISSN:
1551-2916
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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