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Formation of Nanometric TiB2 from TiO2

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Date

2000

Authors

Welham, N

Journal Title

Journal ISSN

Volume Title

Publisher

American Ceramic Society

Abstract

Titanium diboride can be produced by ball-milling a mixture of TiO2, B2O3, and Mg metal for between 10 and 15 h. The reaction was found to be completed during the milling with no evidence of residual Mg. The unwanted phase, MgO, was readily removed by leaching in acid. The leached powder obtained after 15 h milling had a particle size of <200 nm and was highly faceted. The particle size decreased to approx. 50 nm after 100 h milling and seemed to be relatively nondisperse. Scherrer calculation of the crystallite size showed that the product particles were probably single crystal.

Description

Keywords

Keywords: Ball milling; Boron compounds; Differential thermal analysis; Leaching; Magnesium; Mixtures; Numerical methods; Particle size analysis; Single crystals; Titanium dioxide; X ray diffraction analysis; Monodisperse; Scherrer calculation; Titanium diboride; C

Citation

URI

http://hdl.handle.net/1885/90016

Collections

ANU Research Publications

Source

Journal of the American Ceramic Society

Type

Journal article

Book Title

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