Coating of Ti–6Al–4V alloy with pure titanium film by sputter-deposition for improving biocompatibility

2006 ◽  
Vol 38 (4) ◽  
pp. 797-800 ◽  
Author(s):  
T. Sonoda ◽  
T. Saito ◽  
A. Watazu ◽  
K. Katou ◽  
T. Asahina
Keyword(s):  
Pure Titanium ◽  
Sputter Deposition ◽  
Titanium Film

A surface cleaning method for sputter deposition of pure titanium film onto TiNi shape memory alloy substrate

Vacuum ◽  
2001 ◽  
Vol 60 (1-2) ◽  
pp. 197-199 ◽  
Author(s):  
T Sonoda ◽  
A Watazu ◽  
J Zhu ◽  
A Kamiya ◽  
K Ushiki ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Pure Titanium ◽  
Surface Cleaning ◽  
Sputter Deposition ◽  
Titanium Film ◽  
Cleaning Method ◽  
Alloy Substrate

Titanium Nitride Film on Titanium Film by Magnetron Sputtering Method

2018 ◽  
Vol 782 ◽  
pp. 176-181
Author(s):  
Akira Watazu ◽  
Kay Teraoka ◽  
Tsutomu Sonoda
Keyword(s):  
Magnetron Sputtering ◽  
Titanium Nitride ◽  
Blood Compatibility ◽  
Pure Titanium ◽  
Titanium Substrate ◽  
Nitride Film ◽  
Tin Coating ◽  
Titanium Film ◽  
Gas Atmosphere ◽  
Ar Gas

Titanium nitride (TiN) film on titanium film (Ti) was formed by magnetron sputtering method. Pure titanium substrates with TiN/Ti multi-layered films deposited using DC sputter-deposition machine in Ar gas atmosphere, in order to improve not only the blood compatibility of pure titanium but also the adhesion between the deposited TiN coating and the pure titanium substrate. The effects of the thickness of a pure titanium interlayer on adhesion of the TiN coating to the pure titanium substrate were investigated. And the effects of the TiN coating obtained in this study on blood compatibility were also investigated. The obtained multi-layered films looked yellow gold and appeared to be uniform and adhesive without any peel-offs. Based on the results of the platelet test, the ratio of the number of adhered platelets for the TiN/Ti film to that for the pure titanium substrate was estimated to be 0.54. Thus it was found that the platelet adhesion of the obtained TiN/Ti film was much smaller than the pure titanium, concluding that the TiN coating improved the blood compatibility.

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