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Leucite-Pollucite Glass Ceramics: A new Family of Refractory Materials with Adjustable Thermal-Expansion

Published online by Cambridge University Press:  25 February 2011

R. L. Bedard ,
R. W. Broach  and
E. M. Flanigen
R. L. Bedard
Affiliation:
UOP Research and Development, Tarrytown, NY
R. W. Broach
Affiliation:
UOP Research and Development, Tarrytown, NY
E. M. Flanigen
Affiliation:
UOP Research and Development, Tarrytown, NY
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Abstract

Novel ceramic compositions can be produced from carefully chosen, modified, and processed zeolites. The use of zeolites as precursors for leucite-pollucite glass ceramics having adjustable thermal-expansion behavior is described. The facile sintering properties of the zeolite-derived precursors allow production of these high-temperature materials at several hundred degrees below the solidus temperatures. A representative leucite-pollucite ceramic was studied by high temperature x-ray powder diffraction and synchrotron powder diffraction to determine the nature of the crystal structure and its relationship to the leucite and pollucite end members of the family.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 271: Symposium N – Better Ceramics Through Chemistry V , 1992 , 581
Copyright
Copyright © Materials Research Society 1992

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References

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