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Designing Zeolites As Novel Precursors To Electronic Ceramics

Published online by Cambridge University Press:  15 February 2011

David R. Corbin ,
John B. Parise ,
Uma Chowdhry  and
M. A. Subramanian
David R. Corbin
Affiliation:
Central Research and Development, Du Pont Company, Experimental Station, P. O Box 80262, Wilmington, DE 19880-0262
John B. Parise
Affiliation:
Central Research and Development, Du Pont Company, Experimental Station, P. O Box 80262, Wilmington, DE 19880-0262
Uma Chowdhry
Affiliation:
Central Research and Development, Du Pont Company, Experimental Station, P. O Box 80262, Wilmington, DE 19880-0262
M. A. Subramanian
Affiliation:
Central Research and Development, Du Pont Company, Experimental Station, P. O Box 80262, Wilmington, DE 19880-0262
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Abstract

The decomposition of zeolites is a novel route for the synthesis of aluminosilicate-based ceramic materials. Zeolites offer a number of advantages as ceramic precursors which allow the formation of dense ceramics at lower temperatures than by conventional methods. Using various cation-exchanged zeolites, ceramics and ceramic composites containing anorthite (CaAl2Si2O8). mullite (Al6Si2O11) cordierite (Mg2Al4Si5O18). celsian (BaAl2Si2O8), and ß-spodumene (LiAlSi2O6) have been formed. Using Extended X-ray Absorption Fine Structure (EXAFS), we have studied the reconstructive transformation of strontium-exchanged zeolite A to Sr-anorthite and have shown that the primary coordination of strontium remains intact during conversion.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 233: Symposium U – Synthesis/Characterization and Novel Applications of Molecular Sieve Materials , 1991 , 213
Copyright
Copyright © Materials Research Society 1991

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