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Molecularly Modified Alkoxide Precursors for Synthesis of Dielectric Ceramics.

Published online by Cambridge University Press:  28 February 2011

Pradeep P. Phule  and
Farida Khairulla
Pradeep P. Phule
Affiliation:
Department of Materials Science and Engineering, University of Pittsburgh, Pittsburgh, PA 15261, USA
Farida Khairulla
Affiliation:
Department of Materials Science and Engineering, University of Pittsburgh, Pittsburgh, PA 15261, USA
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Abstract:

Chemical synthesis of titanate and zirconate based multicomponent electronic ceramics using molecularly modified alkoxide precursors is discussed. Controlled chemical polymerization of the modified alkoxides was conducted to prepare multicomponent gels which on calcination at moderate temperatures (700 – 1000°C) formed high purity, ultrafine powders (e.g. BaTiO3, ZrTiO4, LiTaO3). In the sol-precipitation technique modified precursors were used to prepare ultrafine (< 100 nm) and crystalline powders of such ceramics as BaTiO3 and BaZrO3 at low temperatures (< 100°C), under highly alkaline (pH > 13) conditions.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 180: Symposium A – Better Ceramics Through Chemistry IV , 1990 , 527
Copyright
Copyright © Materials Research Society 1990

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References

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