Solid-state NMR characterization of β-sialons from self-propagating high-temperature synthesis
Abstract
A series of highly crystalline β-sialons prepared by self-propagating high-temperature synthesis (SHS) has been characterized by powder X-ray diffraction, 29Si and 27Al MAS NMR spectroscopy. The microdomain-type structure of the products (with general composition Si6 –zAlzOzN8 –z where 0.5 ⩽z⩽ 2.0) is very similar to that of β-sialons prepared using conventional synthesis methods.