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Licensed Unlicensed Requires Authentication Published by De Gruyter June 11, 2013

Wetting of metals and glasses on Mo

Antoni P. Tomsia, Eduardo Saiz, Sonia López-Esteban, Mehdi Benhassine, Joel de Coninck, Nicole Rauch and Manfred Rühle


The wetting of low melting point metals and Si – Ca – Al – Ti – O glasses on molybdenum has been investigated. The selected metals (Au, Cu, Ag) form a simple eutectic with Mo. Metal spreading occurs under nonreactive conditions without interdiffusion or ridge formation. The metals exhibit low (non-zero) contact angles on Mo but this requires temperatures higher than 1100 °C in reducing atmospheres in order to eliminate a layer of adsorbed impurities on the molybdenum surface. By controlling the oxygen activity in the furnace, glass spreading can take place under reactive or nonreactive conditions. We have found that in the glass/Mo system the contact angle does not decrease under reactive conditions. In all cases, adsorption from the liquid seems to accelerate the diffusivity on the free molybdenum surface.

* Correspondence address, Antoni P. Tomsia, Materials Sciences Division, Lawrence Berkeley National Laboratory, MSD Building 62R0203, Berkeley, CA 94720, USA. Tel.: +1 510 486 4918, Fax: +1 510 486 4761, E-mail:


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Received: 2007-6-25
Accepted: 2007-9-12
Published Online: 2013-06-11
Published in Print: 2007-12-01

© 2007, Carl Hanser Verlag, München

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