A new Ti-5Ag alloy for customized prostheses by three-dimensional printing (3DPTM)
A new Ti-5Ag alloy for customized prostheses by three-dimensional printing (3DPTM)
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DOI：
10.1177/00220345010800030301
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发表时间：
2001-03-01
影响因子：
7.6
通讯作者：
Allen, SM
中科院分区：
文献类型：
--
作者：
Hong, SB;Eliaz, N;Allen, SM
定制颅颌面修复体的三个重要考虑因素是几何精度、材料强度和生物相容性。三维打印（3DP(TM)）是一种快速的零件加工工艺，可以生产高精度的复杂零件。本研究的目的是设计、合成一种新型Ti-5Ag （wt%）合金。发现硝酸银是钛粉基骨架的合适无机粘结剂，并确定了实现完全致密化的最佳烧结参数。结果表明，Ti-5Ag合金的硬度远高于纯钛样品的硬度。在体温盐水溶液中进行的电位测定表明，Ti-5Ag合金具有与纯钛相似的良好钝化行为。结果表明，Ti-Ag体系可用于3d打印（TM）定制义肢的制备。
Three important considerations in the fabrication of customized cranio-maxillofacial prostheses are geometric precision, material strength, and biocompatibility. Three-dimensional printing (3DP(TM)) is a rapid part-fab ri cation process that can produce complex parts with high precision. The aim of this study was to design, synthesize by 3DP(TM), and characterize a new Ti-5Ag (wt%) alloy. Silver nitrate was found to be an appropriate inorganic binder for the Ti powder-based skeleton, and the optimum sintering parameters for full densification were determined. The hardness of the Ti-5Ag alloy was shown to be much higher than that of a pure titanium sample. Potentiodynamic measurements, carried out in saline solution at body temperature, showed that the Ti-5Ag alloy had good passivation behavior, similar to that of pure titanium. It is concluded that the Ti-Ag system may be suitable for fabrication of customized prostheses by 3DP(TM).