Title

Synthesis, densification, and phase evolution studies of Al2O3-Al2TiO5-TiO2 nanocomposites and measurement of their electrical properties

Authors

Authors

V. Somani;S. J. Kalita

Comments

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Abbreviated Journal Title

J. Am. Ceram. Soc.

Keywords

NANOCRYSTALLINE MATERIALS; ALUMINUM TITANATE; THIN-FILMS; POWDER; CHALLENGES; SIZE; Materials Science, Ceramics

Abstract

Alumina-aluminum titanate-titania (Al2O3-Al2TiO5-TiO2) nanocomposites were synthesized using alkoxide precursor solutions. Thermal analysis provided information on phase evolution from the as-synthesized gel with an increase in temperature. Calcination at 700 degrees C led to the formation of an Al2O3-TiO2 nanocomposite, while at a higher temperature (1300 degrees C) an Al2O3-Al2TiO5-TiO2 nanocomposite was formed. The nanocomposites were uniaxially compacted and sintered in a pressureless environment in air to study the densification behavior, grain growth, and phase evolution. The effects of nanosize particles on the crystal structure and densification of the nanocomposite have been discussed. The sintered nanocomposite structures were also characterized for dielectric properties.

Journal Title

Journal of the American Ceramic Society

Volume

90

Issue/Number

8

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

2372

Last Page

2378

WOS Identifier

WOS:000248379600012

ISSN

0002-7820

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