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首页> 外文期刊>International Scholarly Research Notices >Nickel-Containing Alloys for Medical Application Obtained by Methods of Mechanochemistry and Powder Metallurgy
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Nickel-Containing Alloys for Medical Application Obtained by Methods of Mechanochemistry and Powder Metallurgy

机译：通过机械化学和粉末冶金方法获得的含镍合金的医疗应用

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The methods of mechanochemistry, in combination with cold pressing and pressureless sintering, were used to obtain the most popular nickel-based and nickel-containing alloys used in dentistry and implantology. It was shown that the intense mechanical treatment of Ni, Ti, and Cr powders used as reagents, and the application of the above-mentioned simple powder metallurgical technique for densification allows obtaining NiCr and NiTi alloys with controlled structural properties. The nickel-based dental alloys obtained by mechanically activated sintering possess excellent mechanical, technological, and aesthetic properties. These alloys are suitable as dental restorative materials and for production of porcelain veneered constructions like crowns and bridges using the so-called metal-to-ceramic dental technique. It was shown that the method of mechanically assisted synthesis allows obtaining nanosized NiTi alloy at significantly lower temperature in comparison with the traditional high-temperature alloying. It was also shown that after 40 hours intense mechanical treatment of reagents, a direct synthesis of NiTi alloy proceeds. The product has excellent sinterability which enables to produce bodies with controlled porosity appropriate for application in implantology.
机译：机械化学技术与冷压和无压烧结组合的方法用于获得用于牙科和植入术中使用的最流行的基于镍和含镍合金。结果表明，用作试剂的Ni，Ti和Cr粉末的强烈机械处理，以及上述简单的粉末冶金技术用于致密化的应用允许获得具有受控结构性能的NiCr和Niti合金。通过机械活化烧结获得的基于镍的牙科合金具有优异的机械，技术和美学性质。这些合金适用于牙科恢复材料，以及使用所谓的金属到陶瓷牙科技术，用于生产瓷铠装结构，如冠和桥梁。结果表明，与传统的高温合金化相比，机械辅助合成方法允许在显着较低的温度下获得纳米氮合金。还表明，在40小时内强烈的机械处理试剂后，直接合成Niti合金进行。该产品具有优异的烧结性，使得能够生产适于在植入物系中应用的受控孔隙率的体。

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