Samples of lithium aluminosilicate glass were exposed to hot H2SO4 and were analyzed using nuclear reaction analysis in order to determine H and Li depth profiles in the surface layer. It was found that the depth profiles of the 2 elements were entirely complementary; thus showing that H+/Li+ ion exchange took place during treatment. Rutherford back-scattering spectrometry measurements revealed that the other glass constituents were unaffected by the acid treatment.

Hydrogen/Lithium Interdiffusion in a Lithium Aluminosilicate Glass Studied by NRA and RBS. O.Dersch, M.Laube, F.Rauch, O.Becker: Glass Science and Technology, 1999, 72[10], 329-32