Study of Photochromic Silver-Containing Quartz-Like Glass
Using X-Ray Diffraction Methods

V. V. Golubkov^†, M. A. Girsova, P. A. Onushchenko, and T. V. Antropova

Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences,

nab. Makarova, 2, St. Petersburg, 199034 Russia

e-mail: girsovamarina@rambler.ru

Received December 29, 2014

Abstract—Photochromic quartz-like glassess obtained by sintering plates of porous glass, which were succes-
sively impregnated with an aqueous solution of silver nitrates with or without the presence of sensitizers (cop-
per or cerium nitrates) and halides (NH₄Cl, KBr, KI) are studied using the methods of X-ray difraction and
small-angle X-ray scattering (SAXS). It is shown that the main crystalline phases in the composition of light-
sensitive regions formed in quartz-like glass are AgBr and KBr in the form of nanodimensional crystals with a
size of 100–130 Å. The sizes of the scattering regions according to the data of small-angle scattering are amount
to 250–300 Å. The temperatures of melting and crystallization of light-sensitive phases are determined from
the temperature dependences of the SAXS intensity.

Keywords: photochromic quartz-like glass, density, X-ray small-angle scattering, X-ray difraction

DOI: 10.1134/S1087659615060061

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.