The structure of B2O3 and alkali borate glasses has been investigated using the SAXS technique. The radii of the regions of structural inhomogeneity observed in B2O3 in the equilibrium state are predominantly 6-7 A. A change in the water content has no effect on the structural inhomogeneity, which depends only on the temperature. After rapid changes of temperature, this structure develops independently of the changes in the thermal density fluctuations. The development of the structural inhomogeneity that proceeds after abrupt increases in temperature is primarily associated with the formation of regions of inhomogeneity with radii as large as 30-35A. An abrupt decrease in temperature leads to the appearance of regularity in the distribution of the regions of structural inhomogeneity. The inhomogeneity regions in low alkali borate glasses are chain branched clusters. A certain regularity in the distribution of the chemical inhomogeneity regions is revealed at low temperatures. The degree of regularity increases with decreasing temperature and becomes a maximum at a temperature close to the temperature of the transition to a disordered solid state, T3. After abrupt changes in temperature, the development of structural inhomogeneity brings about a change in the distribution of chemical inhomogeneity.
