In this paper we report on the results of a series of sessile drop experiments designed to examine the effect of TiO2 on the wetting behavior of Ag-CuO air braze filler metals. It was found that TiO2 concentrations as small as 0.5 mol% can significantly decrease the contact angle of Ag-CuO on alumina over a compositional range of 1 – 34mol% CuO. The effect appears to maximize at a copper oxide concentration of ~4 mol% CuO regardless of the titania content.
Revised: February 20, 2009 |
Published: January 1, 2006
Citation
Weil K.S., J.Y. Kim, J.S. Hardy, and J.T. Darsell. 2006.Improved Wetting Characteristics in TiO2–Modified Ag-CuO Air Braze Filler Metals. In Proceedings of the 3rd International Conference on Brazing and Soldering, edited by JJ Stephens and KS Weil, 120-124. Materials Park, Ohio:ASM International.PNNL-SA-47911.