Influence of oxygen partial pressure and oxygen content on the wettabilityin the copper-oxygen-alumina system

Authors
Diemer, M Neubrand, A Trumble, KP Rodel, J
Citation
M. Diemer et al., Influence of oxygen partial pressure and oxygen content on the wettabilityin the copper-oxygen-alumina system, J AM CERAM, 82(10), 1999, pp. 2825-2832
Citations number
37
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN journal
00027820 → ACNP
Volume
82
Issue
10
Year of publication
1999
Pages
2825 - 2832
Database
ISI
SICI code
0002-7820(199910)82:10<2825:IOOPPA>2.0.ZU;2-V
Abstract
The influence of oxygen on the wetting behavior of copper on single-crystal Al2O3 has been studied. By controlling the oxygen partial pressure (p(O2)) and oxygen content in the copper simultaneously, contact angle can be vari ed between 125 degrees and 22 degrees. Evaluation of the Gibbs adsorption e quation for the liquid/solid interface at 1300 degrees C suggests that adso rption of a Cu-O complex at that interface plays a key role in promoting we tting. Formation of CuAlO2, and dissolution of Al2O3 in the melt also influ ence the contact angle, especially in the range of p(O2) > 10(-5) bar (1 Pa ).