TEM STUDY ON STABILITY OF MG-DOPED GAMMA-ALUMINA FINE PARTICLES

Authors
KUSUNOKI M ROKKAKU M IKUHARA Y YANAGIDA H
Citation
M. Kusunoki et al., TEM STUDY ON STABILITY OF MG-DOPED GAMMA-ALUMINA FINE PARTICLES, Materials transactions, JIM, 39(1), 1998, pp. 110-113
Citations number
6
Categorie Soggetti
Metallurgy & Metallurigical Engineering","Material Science
Journal title
Materials transactions, JIM → ACNP
ISSN journal
09161821
Volume
39
Issue
1
Year of publication
1998
Pages
110 - 113
Database
ISI
SICI code
0916-1821(1998)39:1<110:TSOSOM>2.0.ZU;2-D
Abstract
Ultrafine spherical particles of gamma-Al2O3 containing 4 at% magnesiu m and pure gamma-Al2O3 were prepared by evaporating metal Al in air. C onsequently, both particles were heated at 1400 degrees C for 6 h in a vacuum. TEM observations showed that the Mg-doped gamma-Al2O3 particl es were much more stable than the pure gamma-Al2O3 particles. The role of Mg atoms on the stability is discussed mainly based on the results obtained by high-resolution electron microscopy and energy dispersive X-ray spectroscopy.