Experimental investigation of the influence of a temperature gradient on the intensity of light scattering in borate melts

Abstract

The influence of a temperature gradient on the intensity of light scattering in the boron oxide melt and the lithium borate melts containing 1.2 and 1.6 mol % Li₂O has been investigated over a wide range of temperatures. It has been revealed that, for the temperature gradient used, the reached steady-state intensity of light scattering in the boron oxide melt remains almost unchanged and the intensity of light scattering in the lithium borate melts increases. The specific feature of variations in the light scattering intensity during the attainment of steady-state values in the melts is a nonmonotonic time dependence of the intensity with a minimum. It has been established that additional scattering arising in the lithium borate melts depends on the temperature. The spatial distribution of the light scattering intensity in the objects under study is changed under the action of the temperature gradient.