The capillary-crystallization interaction of potassium-containing components of the glass batch has been studied. A comparison is made with similar dependences for sodium-containing components. Revealed new patterns associated with different solubility of the components, not previously noted. In particular, a positive effect on the consolidation of the charge components of alkali metal sulfates, which are widely used as accelerators of glass-making processes, is shown. The behavior of the capillary-crystallization curves for various solutions of the components is analyzed. Il. 5, bibliography: 3 titles.
The results of the study of the possibility of using the marshallite of the Elbashinsky deposit in the production of container glass are presented. The physicochemical characteristics of marshallite and its influence on the process of preparing the charge, melting and glass quality have been determined. Tab. 4, ill. 3, bibliography: 6 titles.
The analysis of the capillary-gravitational interaction of isomeric particles is carried out in relation to the processes of segregation arising in the preparation of a glass batch. The critical sizes of particles causing segregation are calculated for simple and complex capillary cells. The influence of the wetting angle of the material on the tendency of the charge to delamination is considered, the effect of mechanical overloads and vibration during the preparation of the glass charge is taken into account. Il. 8, bibliography: 2 titles.
On the example of glasses of the K 2 O - TiO 2 - P 2 O 5 system near the stoichiometry of potassium titanyl phosphate by methods small-angle scattering of synchrotron radiation, vibrational spectroscopy, and second harmonic generation, it is shown that at the initial stage of phase separation, at which the glass remains X-ray amorphous and transparent, it can have a quadratic optical nonlinearity. The onset of nonlinearity is facilitated by the formation of nanoinhomogeneities in glass, the structure of which is similar to the structural motif of a nonlinear optical crystal. The discovery of correlations between the features of the structure of X-ray amorphous glass and its quadratic optical nonlinearity indicates the expediency of describing the short-range and average orders of glasses of compositions at the boundaries of the regions of glass formation from the standpoint of quasicrystalline models. Il. 6, bibliography: 13 titles.
The level of transmission in the ultraviolet region of sheet glasses with hard and soft low-emission coatings is analyzed. Tab. 1, bibliography: 2 titles.
The experience of a plant for the production of electrovacuum glass with periodic changes in the glass composition is considered. Il. 2, bibliography: 3 titles.
Methods for calculating the strength properties of glass plates, such as deflection and stresses arising when a static load is applied to the glass, are presented. The features of various methods for calculating deflections and stresses are considered. The mathematical formulation of the problem is described and the results of the numerical solution of the obtained problem for a fourth-order partial differential equation, the so-called biharmonic equation, developed by the authors by the grid method, are given. Il. 5, bibliography: 3 titles.
A method for preliminary briquetting of a foam glass batch is considered, which allows not only to simplify production, but also to change the characteristics of foam glass in a targeted manner, by adjusting the parameters of the production of briquettes. The rational parameters for the manufacture of briquettes for obtaining foam glass on various technological bonds have been determined, their optimal dosages have been determined. It has been established that foam glass of lower density is obtained from denser briquettes. Il. 3, bibliography: 4 titles.
Methods for solving the problem of accounting for the oxide composition of cullet when calculating the recipe for a glass batch are considered. An approach to automating the solution of this problem within the program for calculating the recipe is described. Bibliography: 1 titles.
As a result of IR spectroscopic and X-ray phase studies, the structural features of glasses of the Na 2 O - SiO 2 - TiO 2 - Na 3 < / sub> AlF 6 , as well as the dependence of the nature of crystallizing phases on the chemical composition of the glass matrix. The effect of the structure of titanium-containing clusters on the leachability of glasses, the effect of the second coordination sphere on the coordination of the central cation (Ti 4+ ), and the tendency to jam experimental glass coatings are noted. Il. 4, bibliography: 8 titles.
