Mechanical properties of tantalum-based ceramic coatings for biomedical applications

被引：8
|
作者：
Donkov, N. [1 ]
Walkowicz, J. [2 ]
Zavaleyev, V. [2 ]
Zykova, A. [3 ]
Safonov, V. [3 ]
Dudin, S. [4 ]
Yakovin, S. [4 ]
机构：
[1] Bulgarian Acad Sci, E Djakov Inst Elect, 72 Tsarigradsko Chaussee, BU-1784 Sofia, Bulgaria
[2] Koszalin Univ Technol, Fac Technol & Educ, 2 Sniadeckich Str, PL-75453 Koszalin, Poland
[3] Kharkov Inst Phys & Technol, Natl Sci Ctr, 1 Acad Skaya Str, UA-61108 Kharkov, Ukraine
[4] Kharkov Natl Univ, Dept Phys Technol, 4 Svobody Sq, UA-61077 Kharkov, Ukraine
来源：
20TH INTERNATIONAL SUMMER SCHOOL ON VACUUM, ELECTRON AND ION TECHNOLOGIES, 2017 | 2018年 / 992卷
关键词：
FILMS; TITANIUM; BIOCOMPATIBILITY; RESISTANCE; CORROSION; TA2O5; METAL;
D O I：
10.1088/1742-6596/992/1/012034
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The properties were studied of Ta, Ta2O5 and Ta/Ta2O5 coatings deposited by reactive magnetron sputtering on stainless steel (AISI 316) substrates. The compositional, structural and morphological parameters of the coatings were investigated by means of X-ray photoemission spectroscopy (XPS), energy dispersive X-ray (EDX) spectroscopy, and scanning electron microscopy (SEM). The roughness parameters, adhesion strength, hardness, elastic modulus, and H/E ratio were evaluated by standard techniques. The hardness parameters of the Ta2O5 and Ta/Ta2O5 coatings increased in comparison with pure Ta films, while the relatively low Young's modulus was related to high elastic recovery and high resistance to cracking. The tantalum-based coatings possessed good biomechanical parameters for advanced implant and stent applications.
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页数：6
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