Titanium Phosphate Glass‐Ceramics with Silver Ion Exchangeability

Abstract

Na 2 O‐CaO‐TiO 2 ‐P 2 O 5 glass‐ceramics containing Nasicon‐type crystals were found to have silver‐ion exchangeability. The Nasicon‐type phase contains Ca 2+ and Na + ions which are located in two different sites of the conduction channels: the Na + ions with high mobility can be exchanged easily with Ag + ions in aqueous solution. The Ag + ‐ion‐exchanged glass‐ceramics showed excellent bacteriostatic activity and a relatively high strength of 160 MPa in bending.