Стандартные образцы (May 2017)
DEVELOPMENT OF THE METHOD OF SYNTHESIS FOR POLYFUNCTIONAL VITREOUS SAMPLES ON THE BASIS OF GLASSY FLUX IN Bi<sub>2</sub>O<sub>3</sub>-B<sub>2</sub>O<sub>3</sub> SYSTEM
Abstract
The article presents the method of approach to synthesis of polyfunctional vitreous reference materials on the basis of Bi2O3-B2O2. The development of glassy samples consists in mixture of initial oxide components, their dissolution in the glassy matrix at a temperature of 1273-1373 K, exposition of fusion at this temperature during an hour in smelting furnace, hardening on air in the prepared mould (T = 373 K) with following annealing. The kinetics dissolution of analyzed substances was researched and was considered as example the langasit dissolution. The calculated kinetics characteristics allowed to find the time of dissolution. Need of carrying out posthardening annealing of glassy samples for increase of their strength characteristics is shown.
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