Title

Perfect single-crystal alumina microspheres

Authors

Authors

W. Y. Yang; H. T. Wang; X. M. Cheng; Z. P. Xie;L. A. An

Comments

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Abbreviated Journal Title

J. Am. Ceram. Soc.

Keywords

ULTRATHIN AL2O3 FILMS; ALPHA-ALUMINA; PARTICLES; TRANSFORMATION; ALPHA-AL2O3; GROWTH; THETA; Materials Science, Ceramics

Abstract

We report the synthesis of perfect single-crystal Al2O3 microspheres via direct thermal decomposition of aluminum isopropoxide in air without any template or catalyst. The obtained microspheres were characterized using scanning electron microscopy, X-ray diffraction, transmission electron microscopy, and selective area electron diffraction. The results suggested that the formation of the spheres can be attributed to a transition from polycrystalline to single-crystalline symmetry during high-temperature annealing. The obtained microspheres could be useful for many applications such as lubricants and polishing mediums.

Journal Title

Journal of the American Ceramic Society

Volume

91

Issue/Number

8

Publication Date

1-1-2008

Document Type

Article

DOI Link

http://dx.doi.org/10.1111/j.1551-2916.2008.02483.x

Language

English

First Page

2732

Last Page

2735

WOS Identifier

WOS:000258379300049

ISSN

0002-7820

Recommended Citation

"Perfect single-crystal alumina microspheres" (2008). Faculty Bibliography 2000s. 1169.
https://stars.library.ucf.edu/facultybib2000/1169