U. Lembke et W. Blau, EXPERIMENTAL-DETERMINATION OF THE INTERFACE TENSION OF LIQUID SILVER-HALIDE IN A SODIUM BOROSILICATE MELT, Berichte der Bunsengesellschaft fur Physikalische Chemie, 100(9), 1996, pp. 1651-1654
Citations number
13
Categorie Soggetti
Chemistry Physical
Journal title
Berichte der Bunsengesellschaft fur Physikalische Chemie
A method for the direct measurement of the interface tension of precip
itating silver halide in a photochromic glass melt is presented. The t
echnique is based on the determination of the mean radii of curvature
of a glass droplet swimming in the silver halide melt at temperatures
above the glass transition temperature. The calculation of the interfa
ce tension is performed by means of the Laplace equation taking into a
ccount the gravitational force and the force of buoyancy. The results
obtained for 610 degrees C and 850 degrees C are used to estimate the
nucleation rates for the formation of silver halide phases in photochr
omic glasses.