AIR PASSIVATION OF TI-CU, TI-CO AND TI-AL ALLOYS FOR DENTAL APPLICATIONS

被引：3
|
作者：
HAUTANIEMI, JA
机构：
[1] Department of Applied Physics, University of Turku, SF-20520 Turku
来源：
APPLIED SURFACE SCIENCE | 1993年 / 72卷 / 01期
关键词：
D O I：
10.1016/0169-4332(93)90048-G
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Oxidation of various air-passivated titanium alloys (Ti-20Cu, Ti-20Co and Ti-10Al) for dental applications was studied by SEM/EDX, XRD and XPS. Titanium appeared as tetravalent TiO2 in all alloys studied. In Ti-20Cu alloy copper existed mainly as Cu2O. No indication of a thin Cu(OH)2 saturation layer was seen after passivation for several weeks as it was seen for elemental copper. The hydroxide Co(OH)2 was observed on the surface of Ti-20Co. The same passivation product was obtained for elemental cobalt. In Ti-10Al alloy aluminum appeared as trivalent Al3+ ions. A relatively high amount of aluminum was seen in the surface oxide layer whereas only small amounts of copper and cobalt were observed.
引用
收藏
页码：95 / 102
页数：8
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