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低弹性模量钛合金用于钛烤瓷的力学分析
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第四军医大学“院创新工程项目”(42413JC)


Mechanical Analysis of Titanium Alloy with Low Elastic Modulus for Ceramic-Metal
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    摘要:

    钛与烤瓷结合强度的不足制约了临床上钛瓷修复体的应用,本研究尝试引入低弹性模量钛合金烤瓷的概念,并用力学计算方法对金瓷界面承受剪切、中部弯曲载荷等破坏条件予以模拟和分析论证。结果表明,低弹性模量钛合金在承受剪切作用力时界面应力水平低于纯钛6%以上,在承受中部弯曲载荷条件下低弹性模量钛合金需要增加金属基底厚度(>2 mm)才能获得较好的刚度和应力分布,在临床条件下可以满足这一厚度要求。

    Abstract:

    Insufficient bond strength between ceramic and titanium restricts their application in clinic. The attempt of the present study is made to introduce a concept of the titanium alloy with low elastic modulus for simulating and investigating different destroying conditions such as shear load at metal-ceramic interface, middle bending load etc. The results indicate that the interface stress level of titanium alloy with low elastic modulus is 6% lower than that of pure titanium when the alloy is subjected to shear load. On the condition of being subjected to middle bending load, the thickness of titanium alloy substrates of low elastic modulus should be increased to obtain better match between stiffness and stress distribution, which could be well satisfied in clinic (thickness>2 mm).

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赵彦涛,张玉梅,于振涛,孔 亮,赵铱民.低弹性模量钛合金用于钛烤瓷的力学分析[J].稀有金属材料与工程,2009,38(8):1386~1389.[Zhao Yantao, Zhang Yumei, Yu Zhentao, Kong Liang, ZhaoYimin. Mechanical Analysis of Titanium Alloy with Low Elastic Modulus for Ceramic-Metal[J]. Rare Metal Materials and Engineering,2009,38(8):1386~1389.]
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  • 收稿日期:2008-12-25
  • 最后修改日期:2009-04-14
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