Mechanical properties of zirconia/alumina nano-composite after soaking in various water-based conditions

被引：21

作者：

Ban, S

Nawa, M

Suehiro, Y

Nakanishi, H

机构：

[1] Kagoshima Univ, Grad Sch Med & Dent Sci, Dept Biomat Sci, Kagoshima 8900145, Japan

[2] Matsushita Elect Works, Adv Technol Fus Lab, Osaka 5718686, Japan

来源：

BIOCERAMICS 18, PTS 1 AND 2 | 2006年 / 309-311卷

关键词：

zirconia; mechanical property; degradation; dental restoration;

D O I：

10.4028/www.scientific.net/KEM.309-311.1219

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Yttria stabilized tetragonal zirconia polycrystals (Y-TZP) have been applied to dental crown and bridges. Whereas, to further improve its mechanical strength, the zirconia/alumina nano-composite stabilized with cerium oxide (Ce-TZP/Al2O3 nano-composite) was developed. In the present study, biaxial flexure strength, fracture toughness and hardness were determined before and after soaking in water-based conditions and the possibility of application to all ceramic dental restorations was discussed. In comparison to Y-TZP, Ce-TZP/Al2O3 nano-composite has quite high flexure strength and fracture toughness along with satisfied durability for LTAD in various water-based conditions encountered in dentistry. Therefore, it is concluded that the nano-composite can be safely applied to dental restoratives such as all-ceramic bridges.

引用

页码：1219 / 1222

页数：4

共 14 条

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