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Nuclear Magnetic Resonance Studies of Silicon Carbide Polytypes
Author(s) -
Apperley David C.,
Harris Robin K.,
Marshall Gregory L.,
Thompson Derek P.
Publication year - 1991
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1991.tb06924.x
Subject(s) - silicon carbide , chemical shift , crystallinity , spectral line , materials science , impurity , silicon , carbide , interpretation (philosophy) , nmr spectra database , crystallography , nuclear magnetic resonance , chemistry , metallurgy , physics , composite material , organic chemistry , astronomy , computer science , programming language
The 29 Si MAS NMR spectra of the 2H, 4H, 6H, and 3C polytypes of silicon carbide are presented. An attempt is made to correlate differences in the chemical shifts with local atomic environment. The results of the analysis of the spectra of pure polytypes are used as a basic for the interpretation of the spectra of mixed polytypes and a discussion of the crystallinity and impurity levels of different samples. Carbon‐13 chemical shifts obtained from spectra of the same polytypes are also tabulated.