ELECTRICAL-CONDUCTIVITY OF ALUMINA ALUMINUM COMPOSITES SYNTHESIZED BYDIRECTED METAL OXIDATION

Authors
VENUGOPALAN H TANKALA K DEBROY T
Citation
H. Venugopalan et al., ELECTRICAL-CONDUCTIVITY OF ALUMINA ALUMINUM COMPOSITES SYNTHESIZED BYDIRECTED METAL OXIDATION, Journal of the American Ceramic Society, 77(11), 1994, pp. 3045-3047
Citations number
22
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of the American Ceramic Society → ACNP
ISSN journal
00027820
Volume
77
Issue
11
Year of publication
1994
Pages
3045 - 3047
Database
ISI
SICI code
0002-7820(1994)77:11<3045:EOAACS>2.0.ZU;2-Q
Abstract
Electrical conductivities of Al2O3/Al composite synthesized by directe d oxidation of an aluminum alloy, and sintered Al2O3-4 % MgO are measu red. The high conductivity of the Al2O3/Al composite compared to sinte red Al2O3-4% MgO is shown as proof of the presence of continuous metal channels in the composite. Furthermore, the conductivity data are use d to determine the activation energy for the diffusion of the dominant charge carrier in the oxide matrix.