Deposition of TiN films on Co-Cr for improving mechanical properties and biocompatibility using reactive DC sputtering
- Authors
- Vuong-Hung Pham; Yook, Se-Won; Lee, Eun-Jung; Li, Yuanlong; Jeon, Gyuran; Lee, Jung-Joong; Kim, Hyoun-Ee; Koh, Young-Hag
- Issue Date
- 10월-2011
- Publisher
- SPRINGER
- Citation
- JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, v.22, no.10, pp.2231 - 2237
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
- Volume
- 22
- Number
- 10
- Start Page
- 2231
- End Page
- 2237
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/111506
- DOI
- 10.1007/s10856-011-4410-8
- ISSN
- 0957-4530
- Abstract
- This study reports the deposition of TiN films on Co-Cr substrates to improve the substrates' mechanical properties and biological properties. In particular, the argon to nitrogen (Ar:N-2) gas flow ratio was adjusted to control the microstructure of the TiN films. A Ti interlayer was also used to enhance the adhesion strength between the Co-Cr substrate and TiN films. A series of TiN films, which are denoted as TiN-(Ar/N-2)1:1, Ti/TiN-(Ar/N-2)1:1, and Ti/TiN-(Ar:N-2)1:3, were deposited by reactive DC sputtering. All the deposited TiN films showed a dense, columnar structure with a preferential orientation of the (200) plane. These TiN films increased the mechanical properties of Co-Cr, such as the critical load during scratch testing, hardness, elastic modulus and plastic resistance. In addition, the biological properties of the Co-Cr substrates, i.e. initial attachment, proliferation, and cellular differentiation of the MC3T3-E1 cells, were improved considerably by deposition of the TiN films. These results suggest that TiN films would effectively enhance both the mechanical properties and biocompatibility of biomedical Co-Cr alloys.
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Collections - Graduate School > Department of Bioengineering > 1. Journal Articles
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