Solid solutions of lithium in Ag and Cu in the form of balls, wires, or strips are convenient sources for depositing lithium films as getters on the walls of vacuum vessels. Measurement of the O2, CO and CO2 sorption characteristics have shown that these films(generated electrothermally from Ag/Li solid solutions) excel the best getters of the Ba-film type or the high porosity getters based on Ti, V and Zr alloys. It has been found that tight lithium films passivate as a sorption depth of approximately 10 nm is reached.
COBISS.SI-ID: 618666
The kinetics of lithium evaporation from Ag-Li wire has been studied experimentally in the temperature interval 520-630°C. The initial stage of the process takes place in the kinetic regime and later moves to the diffusion region where the evaporation flow and the mass of the deposited film can be described quantitatively with the help of simple analytical expressions.
COBISS.SI-ID: 618922