The change in the viscosity of vitreous materials irradiated at high temperature

摘要

In the development of nuclear power, space technology, lasers and fiber optics the need has arisen to produce materi- als which enable instruments to operate reliably under different conditions. Thus, when using devices and equipment in the pres- ence of ionizing radiation, they are not only subjected to radiation but also to other loads (high or low temperature, mechanical stresses, aggressive media, etc.). Under such conditions many of the properties of glasses and the processes that occur in them (for example, viscosity and defect formation) maybe modulated by the radiation.