Citation
M. Li et Mj. Reece, Influence of grain size on the indentation-fatigue behavior of alumina, J AM CERAM, 83(4), 2000, pp. 967-970
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN journal
00027820
→ ACNP
Volume
83
Issue
4
Year of publication
2000
Pages
967 - 970
Database
ISI
SICI code
0002-7820(200004)83:4<967:IOGSOT>2.0.ZU;2-E
Abstract
The surface fracture behavior of a high-purity, high-density alumina, as a
function of grain size (3, 5, and 9 mu m), was investigated using an indent
ation-fatigue technique. Increasing the grain size reduced the threshold fo
r crack nucleation, reduced the resistance to surface spalling, and increas
ed the volume of materials lost per spalling event. These results are expla
ined in terms of residual stresses and fatigue damage.