Surface Microhardness and Flexural Strength of Colored Zirconia

被引：9

作者：

Liu Qi ^{[1
]}

Shao Longquan ^{[1
]}

Wen Ning ^{[2
]}

Deng Bin ^{[2
]}

机构：

[1] Southern Med Univ, Dept Stomatol, Nanfang Hosp, Guangzhou 510515, Guangdong, Peoples R China

[2] Chinese Peoples Liberat Army Gen Hosp, Stomatol Ctr, Beijing 100853, Peoples R China

来源：

CHINESE CERAMICS COMMUNICATIONS | 2010年 / 105-106卷

关键词：

Dental ceramics; Zirconia; Mechanical properties;

D O I：

10.4028/www.scientific.net/AMR.105-106.49

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：

The surface microhardness and flexural strength of colored zirconia were examined. Two groups of zirconia disks (1 mm thick, 20mm in diameter) within 5 disks each were shading with the same coloring liquids IL2 (Vita Classic-scale) when another group of 5 disks measured in no color. The shading time of one group was 3s and that of the other group was prolonged to 30s. The mechanical properties were tested after sintering at 1500 degrees C. Data were evaluated using ANOVA analysis. Disks of shading 30s showed a lower strength 712 +/- 53 MPa. The value of 3s was 853 +/- 46 MPa. There were no significant difference on microhardness between the two shading time. Prolonged the shading time lowered the biaxial flexural strength of zirconia ceramic, but shading time did no effect on surface microhardness.

引用

页码：49 / +

页数：2

共 5 条

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[3]

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[4]

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