TY  - JOUR
PY  - 2004//
TI  - The Role of Surface Chemistry on Spreading Kinetics of Molten Silicides on Silicon Carbide
JO  - Interface Science
A1  - Rado, C.
A1  - Eustathopoulos, N.
SP  - 85
EP  - 92
VL  - 12
IS  - 1
N2  - The spreading time for millimeter-sized droplets of nonreactive molten suicides on silicon carbide in high vacuum is several orders of magnitude higher than typical spreading times observed in nonreactive metal/ceramic systems. To explain this paradox, two types of experiments were performed: (i) wetting experiments for various nonreactive CuSi alloys on α-SiC single crystals using the sessile drop and dispensed drop techniques, with emphasis on determining the initial contact angle; and (ii) characterization of surface chemistry of SiC after different heat treatments in high-vacuum furnaces. It is shown that spreading kinetics in these systems are controlled by the kinetics of removing of wetting barriers present or developed in situ on SiC surface.<p /> <p>Language: en</p>
LA  - en
SN  - 0927-7056
UR  - http://dx.doi.org/10.1023/B:INTS.0000012297.30968.02
ID  - ref1
ER  -