A study on the thermal expansion characteristics of Alumina-zirconia nano-composite infiltrated ceramic.
- Author:
Xia DENG
1
;
Yuankun CEN
;
Yongping CHEN
Author Information
- Publication Type:Journal Article
- MeSH: Aluminum Oxide; chemistry; Dental Materials; chemistry; Dental Porcelain; chemistry; Dental Stress Analysis; Differential Thermal Analysis; Hardness; Hot Temperature; Materials Testing; Metal Ceramic Alloys; chemistry; Nanotechnology; Stress, Mechanical; Zirconium; chemistry
- From: West China Journal of Stomatology 2003;21(3):241-242
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the characteristics of thermal expansion of the alumina-zirconia nano-composite infiltrated ceramic.
METHODSThe thermal expansion coefficients of alumina-zirconia composite matrix, infiltrating glass and infiltrated ceramic were determined by various methods, respectively.
RESULTSThe coefficients of thermal expansion of composite matrix with 10 wt%, 20 wt% and 30 wt% zirconia were 7.607, 7.690 and 8.111 microns/(m. degree C) respectively. The thermal expansion coefficients of AZ-8 and AZ-10 infiltration glass were 6.867 and 7.333 microns/(m. degree C), respectively. The thermal expansion coefficient of infiltrated ceramic was 8.413 microns/(m. degree C).
CONCLUSIONThe thermal expansion coefficients of the glass and composite matrix matched well. The thermal expansion coefficients of the alumina-zirconia nano-composite infiltrated ceramic and several common veneering porcelains matched well, too.
