Abstract
A large amount of H2O containing aluminosilicate glasses were prepared by the ion exchange of H+ for Li+, Na+ and Ag+ ions. All of Na+ and Ag+ ions in the glasses were leached out by dipping the samples in concentrated H2SO4 at 300°C for seven days, and the chemical analysis and the thermogravimetric analysis confirmed that H+/Na+ or Ag+ ion-exchange proceeded one by one in the glasses. H+/Li+ exchange also proceeded without crack, but a maximum ion-exchange ratio was 42% after the treatment for 3 weeks. The glass structures were investigated by infrared and Raman spectroscopies, and the relation with the glass properties was considered.
