Plasma immersion ion implantation for the efficient surface modification of medical materials
- National Research Tomsk State University, Tomsk, 634050 (Russian Federation)
The paper reports on a new method of plasma immersion ion implantation for the surface modification of medical materials using the example of nickel-titanium (NiTi) alloys much used for manufacturing medical implants. The chemical composition and surface properties of NiTi alloys doped with silicon by conventional ion implantation and by the proposed plasma immersion method are compared. It is shown that the new plasma immersion method is more efficient than conventional ion beam treatment and provides Si implantation into NiTi surface layers through a depth of a hundred nanometers at low bias voltages (400 V) and temperatures (≤150°C) of the substrate. The research results suggest that the chemical composition and surface properties of materials required for medicine, e.g., NiTi alloys, can be successfully attained through modification by the proposed method of plasma immersion ion implantation and by other methods based on the proposed vacuum equipment without using any conventional ion beam treatment.
- OSTI ID:
- 22492591
- Journal Information:
- AIP Conference Proceedings, Vol. 1683, Issue 1; Conference: International conference on advanced materials with hierarchical structure for new technologies and reliable structures 2015, Tomsk (Russian Federation), 21-25 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
36 MATERIALS SCIENCE
CHEMICAL COMPOSITION
COMPARATIVE EVALUATIONS
DEPTH
DOPED MATERIALS
DRUGS
ELECTRIC POTENTIAL
IMPLANTS
ION BEAMS
ION IMPLANTATION
LAYERS
MANUFACTURING
MODIFICATIONS
NICKEL ALLOYS
PLASMA
SILICON
SUBSTRATES
SURFACE PROPERTIES
SURFACES
TITANIUM ALLOYS