Structure of wetting front in the Ag-Cu-Ti/SiC reactive system

Citation
M. Nomura et al., Structure of wetting front in the Ag-Cu-Ti/SiC reactive system, J MATER SCI, 35(16), 2000, pp. 3953-3958
Citations number
22
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS SCIENCE
ISSN journal
0022-2461 → ACNP
Volume
35
Issue
16
Year of publication
2000
Pages
3953 - 3958
Database
ISI
SICI code
0022-2461(200008)35:16<3953:SOWFIT>2.0.ZU;2-J
Abstract
The nanostructure around the wetting triple line in the Ag-Cu-Ti/SiC reacti ve wetting system was studied. The reaction product consisted of an upper s eparated Ti5Si3 layer more than 20 nm thick, and a lower TiC layer less tha n 10 nm thick was observed exceeding the front line of Ag-Cu-Ti brazing met al. At the top of the reaction product, the lower TiC layer was observed to project beyond the front line of the upper Ti5Si3 layer. In Ag-Cu-Ti/Si3N4 system, structural change around the wetting triple line as reactive wetti ng progressed has been reported, however, in the Ag-Cu-Ti/SiC system, the s tructure around the triple line did not change. The difference between the two systems was explained from the viewpoint of a stable phase change with the decrease of Ti activity as reactive wetting progressed. (C) 2000 Kluwer Academic Publishers.