Abstract
Experimental data are presented on the effect of the Te evaporation rate on the efficiency of the removal of submicron carbon particles (major impurities in Te, present in amounts from 106to 5 × 108cm–3, depending on the purification procedure). By distilling a small amount of the melt, the effective separation coefficient was determined as a function of particle size. For 0.065- to 0.14-μm particles at a minimum evaporation rate of 3 × 10–7cm3 /(cm2s), the separation coefficient lies in the range 9–100. As the evaporation rate increases to 2.5 × 10–5cm3 /(cm2s), the separation coefficient drops to 2–8. Among the factors influencing the purification efficiency is the floating (inverse sedimentation) of submicron carbon particles in molten Te, observed experimentally upon long-term holding.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
