Na20-Ca0-Ti02-P205 glass-ceramics containing Nasicon-type crystals were found to have silver-ion exchangeability. The Nasicon-type phase contains Ca2+ 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.
Origin
Nagoya Inst Technology, Japan
Journal Title
J Am Ceram Soc 82 3 1999 765-767
Sector
Glass Ceramics
Class
GC 345