GRAIN-BOUNDARY DIFFUSION OF OXYGEN IN ALUMINA CERAMICS

Authors
SAKAGUCHI I SRIKANTH V IKEGAMI T HANEDA H
Citation
I. Sakaguchi et al., GRAIN-BOUNDARY DIFFUSION OF OXYGEN IN ALUMINA CERAMICS, Journal of the American Ceramic Society, 78(9), 1995, pp. 2557-2559
Citations number
23
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of the American Ceramic Society → ACNP
ISSN journal
00027820
Volume
78
Issue
9
Year of publication
1995
Pages
2557 - 2559
Database
ISI
SICI code
0002-7820(1995)78:9<2557:GDOOIA>2.0.ZU;2-R
Abstract
The volume and grain boundary diffusion coefficients (D(n)u and delta D-gb) of oxygen at 1673 K in pure and Mg-doped alumina were studied by using a resistive anode encoder of SIMS. The effect of Mg-doping on D (n)u was observed clearly. The differences on delta D-gb in pure and M g-doped alumina were about 3 orders and 1 order of magnitude, respecti vely. The Mg-doping in alumina is useful for homogenizing grain bounda ry diffusion.