Study on thermal treatment schedule of leucite microcrystallization to reinforce dental glass ceramics.
- Author:
Biao ZHANG
1
;
Fa-tang QIAN
;
Xing-long DUAN
;
Bo-lin WU
Author Information
- Publication Type:Journal Article
- MeSH: Aluminum Silicates; chemistry; Crystallization; Dental Porcelain; chemistry; Glass; chemistry; Hot Temperature
- From: Chinese Journal of Stomatology 2003;38(2):143-146
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo explore the thermal treatment schedule of leucite microcrystallization to reinforce dental glass ceramics.
METHODSAfter component analysis and selection, the raw material were treated by different temperature schedules. The products were analyzed by polaring microscope and X-ray diffractometer to determine the appropriate thermal treatment schedule.
RESULTSThe temperature of melting, nuclearing and crystalizing was 1,600 degrees C, 1,200 degrees C and 1,500 degrees C. Leucite microcrystals dispersed in the glass matrix evenly and the size of leucite particle was about 0.8 micro m.
CONCLUSIONLeucite can be microcrystalized according to an appropriate thermal treatment schedule.