Structure of CaPs Coatings Electrophoretically Deposited on NiTi Shape Memory Alloy

• Authors: K. Dudek , T. Goryczka
• Languages of publication: EN

Abstracts

EN

The surface of NiTi shape memory alloys applied as long-term implants has been modified by protective calcium phosphates (CaPs) coatings, with the objective of improving the biocompatibility of this material. The calcium phosphates such as hydroxyapatite Ca₅(PO₃)OH (HAP) and β-tricalcium phosphate β-Ca₃(PO₄)₂ (β-TCP) were deposited by electrophoretic deposition. In order to improve the adhesion, the deposited samples were vacuum-sintered at wide range of temperature from 500°C to 1000°C for 2 h. The studies revealed that applied sintering conditions did not change the structure of CaPs. The coatings consisted of HAP with hexagonal structure (P63/m) and β-TCP with rhombohedral structure (R-3c). Changes in lattice parameters for CaPs coatings after deposition and sintering were refined by the Rietveld method.

Keywords

EN

87.15.Tt; 87.68.+z; 61.10.Nz

Discipline

• 87.15.Tt: Electrophoresis(see also 82.45.-h Electrochemistry and electrophoresis)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 130
• Issue: 4
• Pages: 1053-1055

Dates

published

2016-10

Contributors

author

K. Dudek

• University of Silesia, Institute of Materials Science, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland

author

T. Goryczka

• University of Silesia, Institute of Materials Science, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.130.1053