Naslov
Structure and dielectric properties of Li2O-ZnO-P2O5 glasses

Autori
Moguš-Milanković, Andrea ; Pavić, Luka ; Reis, Signo T. ; Day, Delbert E. ; Ivanda, Mile

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts of the XII International Conference on the Physics of Non-Crystalline Solids (PNCS XII) / Zanotto, Edgar Dutra - São Carlos : Federal University of Sao Carlos, 2009, 51-51

Skup
PNCS XII International Conference on the Physics of Non-Crystalline Solids

Mjesto i datum
Slapovi Iguaçu, Brazil, 06.09.2009. - 10.09.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Dielectric properties; Lithium phosphate glass; Structure

Sažetak
The effect of compositional changes observed by replacing ZnO with Li2O in xLi2O(40-x)ZnO-60P2O5, (0 < x < 40), glasses on the electrical and dielectric properties have been investigated. Glasses were analyzed by different thermal analysis (DTA), Raman and Impedance Spectroscopy in the frequency range from 0.01 Hz to 4 MHz and temperature range from 303 to 473 K. The addition of Li2O up to 20 mol%, give rise to the discrete reorganization of phosphate cross-linked network with formation of the isolated Li-O polyhedra. This initial reconstruction of predominantly metaphosphate structure is consistent with the observed decrease in the Tg, electrical conductivity and dielectric permittivity. Further addition of Li2O content up to 40 mol%, results in the beginning of depolymerization of phosphate network with breaking of the P-O-P bonds and conversion of the Q3 to Q2 units.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

POVEZANOST RADA