N Quadrupole Interactions in Nitrogen-Containing Ceramics. Effects on Si NMR Line Shapes and Structural Implications*
نویسنده
چکیده
Simulations of solid-state Si N M R spectra in nitrogen-containing silicon ceramics and glasses are described. The range of SiN ; t04 ._x tetrahedra is covered, with emphasis on the experimental conditions needed to observe the effect of the incompletely averaged Si, 1 4 N dipolar coupling. A simple equation is discussed concerning its use in the interpretation of these Si spectra, including the computation of 1 N quadrupole coupling constants with its absolute sign.
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