Property Investigation on a Precious Ceramic Alloy

Author:

Zhang Heng Jin1,Liu Ke Fu1,Miao Wei Dong2

Affiliation:

1. Grikin Advanced Materials Co.,Ltd

2. Grikin Advanced Materials Co., Ltd.

Abstract

Experiment investigation of mechanical, physical, and biological properties on a dental precious alloy was performed. The density of the alloy is 12.04 g/cm3, the solidus temperature is 1144.5 °C and the liquidus temperature is 1283.5 °C. The coefficient of thermal expansion of the alloy is 14.84×10-6 /°C between 25 °C to 500 °C. The average 0.2% yield strength is greater than 400MPa, and the average percentage elongation after fracture is greater than 4%. The average bonding strength of the metal-ceramic is 41.93 MPa, much greater than the standard requirement. The biocompatibility of the alloy is excellent, there are no cytotoxicity reactivity, sensitization, irritation, mutagenicity and short-term systemic toxicity. The alloy is a superior dental alloy with excellent mechanical, physical and biological performance.

Publisher

Trans Tech Publications, Ltd.

Reference24 articles.

1. Xu Hengchang, Beijing: Peking University Medical Press(2005).

2. Jin Lei, Li Xunke, Wang Zhongyi et. al., Journal of Clinical Stomatology, 19(7)(2003), P. 436-437.

3. Cai Hui, Chen Lei, Xu Guofu, China Medical Engineering, 2(2006), P. 128-130.

4. Li Xunke, Wang Zhongyi , Ai Shenqian et. al., Chinese Journal of Dental Materials and Devices, 11(1)(2002), P. 52-53.

5. Ding Weishan, Wang Duo, Lan Jing et. al., Shanghai Journal of Stomatology, 13(3)(2004), P. 186-188.

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