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Polymeric Precursors for Yttria

Published online by Cambridge University Press:  21 February 2011

Allen W. Apblett
Affiliation:
Tulane University, Department of Chemistry, New Orleans, LA 70118
Steven M. Cannon
Affiliation:
Tulane University, Department of Chemistry, New Orleans, LA 70118
Galina D. Georgieva
Affiliation:
Tulane University, Department of Chemistry, New Orleans, LA 70118
Jay C. Long
Affiliation:
Tulane University, Department of Chemistry, New Orleans, LA 70118
Isabel Raygoza-Maceda
Affiliation:
Tulane University, Department of Chemistry, New Orleans, LA 70118
Larry E. Reinhardt
Affiliation:
Tulane University, Department of Chemistry, New Orleans, LA 70118
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Abstract

Polymers that can be easily processed into fibers, films, or bodies are excellent precursors for ceramics with useful morphologies. The ideal preceramic polymer not only has proper physical properties (e.g. solubility or fusibility) for processibility but also decomposes at low temperature with high ceramic yield. One possibility for such precursors for yttria are yttrium oxycarboxylates. The preparation of such polymers from YOC1 has been investigated and several compounds with useful physical properties have been discovered. These include a methanol-soluble yttrium oxycarboxylate, (CH3OCH2CH2OCH2CO2YO)n a liquid yttrium tricarboxylate, (CH3OCH2CH2OCH2CO2)3Y, and a method for preparing very concentrated yttrium mixed acetate and formate sols.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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References

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