Apatite-nanodiamond composite as a functional coating of stainless steel
| Autor: | Yuta Tanaka, Yusuke Tsutsumi, Harumi Sakamoto, T. Hikov, Hisashi Doi, Takao Hanawa, Lilyana Pramatarova, Emilia Pecheva, D. Fingarova |
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| Rok vydání: | 2010 |
| Předmět: |
Materials science
Simulated body fluid Composite number Metallurgy Surfaces and Interfaces General Chemistry Carbon nanotube Adhesion engineering.material Condensed Matter Physics Surfaces Coatings and Films law.invention Chemical engineering Amorphous carbon Coating law Materials Chemistry engineering Austenitic stainless steel Nanodiamond |
| Zdroj: | Surface and Interface Analysis. 42:475-480 |
| ISSN: | 0142-2421 |
| Popis: | Biological apatite (AP) is the main component of human bones, and it is a highly bioactive and biocompatible inorganic material. However, it has insufficient mechanical parameters and adhesion to surfaces. Carbon-based coatings, such as diamond-like carbon, carbon nanotubes and amorphous carbon arefound to significantly improve the mechanical properties of AP, increase its adhesion, prevent metal ion release from metal implants and inhibit the formation of fibrous tissue and blood clotting upon implantation. In this study, nanodiamond (ND)-reinforced AP composite coating was prepared by electrodeposition on austenitic stainless steel from simulated body fluid (SBF) containing ND particles. Results revealed the formation of dense and homogeneous AP coating, containing CO 3 and HP0 4 groups similar to the biological AP. The composite coating was characterized by ductility, improved hardness and adhesion to the steel surface in comparison to pure AP. Mineralization experiment in a simulated body fluid revealed that the composite coating is potentially biologically active. |
| Databáze: | OpenAIRE |
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