Youtor
SiC silicon carbide
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=KJ7kv-Q2Qao
The silicon carbide illustrated here is hexagonal, with a space group P63 and lattice parameters a=0.3078 and c=1.0046 nm. There are carbon atoms at (0,0,0.188) and (2/3,1/3,0.439) and silicon atoms at (0,0,0) and (2/3, 1/3, 0.2508). • There are many polytypes of this variant of silicon carbide, meaning that the lattice parameter `c' can vary as 0.2508n, where n represents the number of layers in a repeating period. • Silicon carbide is a hard abrasive and is often used for polishing steels. It can be semiconducting. High temperature electronics can be made from silicon carbide. • http://www.msm.cam.ac.uk/phase-trans/...
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