Authors: A B Straumal B S Bokstein A L Petelin B B Straumal B Baretzky A O Rodin A N Nekrasov
Publish Date: 2012/08/09
Volume: 47, Issue: 24, Pages: 8336-8343
Abstract
The transition from incomplete to complete grain boundary GB wetting has been studied in the Cu + L region of the Cu–In phase diagram in the broad interval of In concentrations from 4 to 22 wt In The number of completely wetted GBs increases with increasing temperature and In content With increasing amount of the melt the GBs with nonzero contact angle become apparently completely wetted A geometrical model describing the influence of the amount of the liquid phase on the mean contact angle and the portion of completely wetted GBs has been developed Using this model the values of the temperatures of the start T wmin = 715 °C and the end of the GB wetting transition T wmax = 986 °C in the Cu–In system were determinedThe authors thank the Program of Creation and Development of the National University of Science and Technology “MISiS” and the Russian Foundation for Basic Research Grant 110301198 for financial support The authors cordially thank Prof Paul Wynblatt for stimulating discussion and Prof Victoria Yardley for her kind help with improvement of English
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