Topić, Mladen; Musić, Svetozar; Ristić, Mira; Živko-Babić, Jasenka
(2001)
Study of leucite-type glass-ceramics by thermally stimulated depolarization current.
Croatica Chemica Acta, 74
(1).
pp. 183-193.
ISSN 0011-1643
Abstract
Two different ingots of leucite-type glass-ceramics were studied by integral and by partial thermally stimulated depolarization current (TSDC) in the range from 173 to 370 K. Partial measurements showed distributed dipolar relaxation (P-1) with a maximum at 256 K, caused by the interaction between alkali ions and nonbridging oxygen atoms. The following relaxation, observed at a higher temperature (P-2), was attributed to the decay of the space charge dipoles. Only the beginning of P-2 was studied because the development of the process was overlapped by the conductivity current. Addition of different oxides to the original material decreased the P-1 and increased the P-2 relaxation, due to the increase of the interface area.
Item Type: |
Article
|
Uncontrolled Keywords: |
leucite; glass-ceramics; thermally stimulated current; TSDC; phenol-formaldehyde resin; dental use; polarization |
Subjects: |
NATURAL SCIENCES > Chemistry |
Divisions: |
Division of Materials Chemistry |
Projects: |
Project title | Project leader | Project code | Project type |
---|
Sinteza i mikrostruktura metalnih oksida i oksidnih stakala | Svetozar Musić | 00980903 | MZOS |
|
Depositing User: |
Svetozar Musić
|
Date Deposited: |
20 Nov 2013 10:28 |
URI: |
http://fulir.irb.hr/id/eprint/995 |
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995
WOS:000167486800013