Solid-state NMR characterization of β-sialons from self-propagating high-temperature synthesis

A series of highly crystalline beta-sialons prepared by SHS was characterised by powder XRD, 29Si and 27Al MAS NMR spectroscopy. NMR confirmed that SHS in an effective and convenient method for preparing beta-@close@ sialons and that the products are of high purity. The microdomain-type structure of...

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Bibliographic Details
Published in:Journal of materials chemistry 1996, Vol.6 (8), p.1391-1393
Main Authors: YUE, Y, HE, H, KLINOWSKI, J, WU, Y, ZHUANG, H
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Inorganic compounds
Magnetic resonances and relaxations in condensed matter, mössbauer effect
Nuclear magnetic resonance and relaxation
Physics
Structure of solids and liquids
crystallography
Structure of specific crystalline solids
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Summary:A series of highly crystalline beta-sialons prepared by SHS was characterised by powder XRD, 29Si and 27Al MAS NMR spectroscopy. NMR confirmed that SHS in an effective and convenient method for preparing beta-@close@ sialons and that the products are of high purity. The microdomain-type structure of the products (with general composition Si6-zAlzOzN8-z where z = 0.5-2.0) is very similar to that of beta-sialons prepared using conventional synthesis methods. However, their superior properties make SHS-derived beta-@close@ sialons more attractive for practical applications. 13 refs.
ISSN:0959-9428
1364-5501
DOI:10.1039/JM9960601391