The surface ‐OH profile in a 15BaF 2 ‐28.3ZnF 2 ‐28.3YbF 2 ‐28.3ThF 4 (mol%) glass resulting from reaction with atmospheric water for 22.5 h at 344°C was determined by monitoring the 2.9‐pm absorption band as material was removed from the surface by polishing. The ‐OH penetrated ‐10 pm into the surface. The‐OH concentration profile agreed with that predicted from a diffusional analysis, allowing determination of the surface ‐OH concentration; this corresponded to replacement of one of seven F − ions with OH − .
No takes yet. Share an insight, caveat, or question.
TKJKIOAT et al. (1985) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: