par Pétré, Georges ;Wozniak, Günter
Référence Advances in space research, 6, 5, page (133-140)
Publication Publié, 1986
Article révisé par les pairs
Résumé : A method is briefly described making it possible to measure the interfacial tension between two liquids of same density. An axisymmetric liquid bridge is formed between an upper fixed circular horizontal disc and a freely hanging solid pieceof appropriate shape, and of density greater than that of the liquids. The maximal volume of the liquid figure satisfying the mechanical equilibrium condition is computed for desired values of the interfacial tension. The maximal volume of the bridge is measured experimentally. The method is applied to two silicon oil/water systems. The variation of interfacial tension with temperature is obtained between 20°C and 50°C. For one of the systems the results can be compared with those obtained by the drop weight method. The two methods gives interfacial tensions increasing with temperatures. © 1986.