Glass Coatings on the Basis of Na2O-B2O3-SiO2 System for Tin Bronze Protection During Melting

Abstract

Abstract. Requirements to properties of protectivetechnological coatings for the tin bronze melting from secondary raw materials were formulated in the work. The choice of model glasses compositions in the initial Na 2 O-B 2 O 3 -SiO 2 system on the basis of the melting parameters values was made. Non-scarce and inexpensive raw materials for protective coatings were selected. Also the best glass composition was determined based on the complex of chosen properties. The formation mechanism of the selected composition glassy melting by using DTА and XRDА was studied.

Annealing Effect on Copper-Doped Sodium Borate Glasses (Na2O.4B2O3)

“…The absorption of light in the ultraviolet and visible regions of the spectrum is due to electronic transitions, while some low-energy electronic transitions are observed in the infrared region of the spectrum due to vibrational transitions. The frequency (ν) of a vibrational absorption in a diatomic molecule is given by the following formula [16][17]28]:…”

“…Industrially, glass is always manufactured by annealing glasses, which is important and necessary to eliminate thermal stress. In this work, the annealing effect of an alkali borate type glass below its softening point was studied according to the Na2O-B2O3 binary system [1,[10][11][12][13][14][15][16]. Doping of the samples was achieved by introducing different amounts of copper oxide (CuO).…”