Journal of Materials Science, Vol.31, No.7, 1797-1802, 1996
Study on Contact Angles of Au, Ag, Cu, Sn, Al and Al-Alloys to SiC
Contact angles of Au, Ag, Cu, Sn, Al and Al alloys to SiC were measured by use of sessile drops heated by a high frequency induction coil designed to be convex against the SiC plate. Three crystal configurations of alpha-SiC, polycrystalline plane of sintered SiC, SiC (1 1 1) plane, and SiC (1 0 0 0) plane were used as base plates. Au, Sn, Al and Al alloys showed a large contact angle of about 150 degrees at each melting temperature, however those of Ag and Cu were in the range of 105-121 degrees. Every contact angle of Al and its alloys decreased to under 90 degrees when held at 1350 degrees C. SiC (1 0 0 0) plane gave a lower contact angle than the other two SiC planes for Cu, Al and Al-Si alloys.
Keywords:LIQUID PURE METALS;WETTABILITY