Comparison of contact angle measurement methods of liquids on metal alloys

Konrad Terpiłowski, Lucyna Hołysz, Diana Rymuszka, Robert Banach

Abstract


The paper presents the studies of metal wettability using two methods: the sessile droplet and immersion ones. Based on the measured contact angles, there was calculated apparent surface free energy from the acidic–basic approach and the contact angle hysteresis. The advancing contact angles measured using the immersion method exhibit a little higher values than those measured by the sessile droplet method. The application of the immersion method leads to obtaining higher contact angle hysteresis. Both methods give different values of contact angles but they can be applied independently for estimation of metal surface wettability.


Keywords


metal alloys; wettability; contact angle

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DOI: http://dx.doi.org/10.17951/aa.2016.71.1.89
Date of publication: 2016-05-24 11:38:48
Date of submission: 2015-11-12 11:24:50


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