| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
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| Symposium
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Advanced Functional and Structural Thin Films and Coatings
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| Presentation Title |
Challenges of TiN Thin Film Coating Development and Deposition onto Medical Grade Thermoplastic Polyurethane (TPU) Used in Biomedical Devices |
| Author(s) |
Maren K. Fossum, Kari R. Kjørholt, Javier Sanchez, Christoph Burgstaller, Richard Olsson, Ragnhild E. Aune |
| On-Site Speaker (Planned) |
Maren K. Fossum |
| Abstract Scope |
When designing biomedical devices, the use of surface modification has proven to be a strategic approach as it allows for improved surface properties while benefiting from the favourable mechanical properties of the bulk material. In the present study two generations of titanium nitride (TiN) thin film coatings (30 and 50 nm) deposited onto medical grade thermoplastic polyurethane (TPU) by magnetron sputtering have been developed and their engineering performance characterized. The challenges of thin film development and deposition onto polymeric substrates are discussed in view of changes in the deposition process compared to deposition onto silicon wafers due to potential outgassing of water and/or oxidation. Moreover, the impact of sputtering method and experimental conditions, coating and substrate thickness, surface roughness, and coating adhesion are also discussed. The overall performance of the TiN coatings has been evaluated against the performance of non-coated substrates and substrates coated with a commercial coating.
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| Proceedings Inclusion? |
Planned: |
| Keywords |
Surface Modification and Coatings, Biomaterials, Thin Films and Interfaces |