Investigation of molecular gas admixture diffusion, heat transfer and stress state in amorphous solid subjected to thermal infrared radiation

2002

Mathematical model for description of coupled mechanical, thermal, and diffusive processes in semitransparent amorphous solid with molecular gaseous admixture subjected to thermal infrared radiation was developed. Governing equations of the model were derived within thermodynamic model of hard mixture while microscopic considerations were involved for obtaining some constitutive equations. Above coupled processes were investigated in glass layer with either two-atomic CO admixture or three-atomic H2O admixture. Developed model allows design regimes for such technological problems as degassing glass elements of electro-vacuum devices, drying of low electro-conductive solids, deposition of pr…