Wetting of Original and Metallized High‐Alumina Surfaces by Molten Brazing Solders
- 1 May 1959
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 42 (5) , 229-235
- https://doi.org/10.1111/j.1151-2916.1959.tb15458.x
Abstract
An apparatus using the sessile‐drop method is described for determining surface tension and wettability data of liquid‐solid systems at elevated temperatures in vacuum and in controlled atmospheres. The relative merits of some of the current methods of metallizing alumina ceramics are evaluated in terms of solder wetting. The wetting by molten brazing metals and alloys is reported as a function of time in terms of contact angle on surfaces of high‐alumina ceramics with and without various types of hightemperature metal coatings.Keywords
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