RF Magnetron-Sputtered Coatings Deposited from Biphasic Calcium Phosphate Targets for Biomedical Implant Applications

Bioactive Materials 2017
K.A. Prosolov, K.S. Popova, O.A. Belyavskaya, J.V. Rau, Kārlis-Agris Gross, Arnolds Ūbelis, Y.P. Sharkeev

Bioactive calcium phosphate coatings were deposited by radio-frequency magnetron sputtering from biphasic targets of hydroxyapatite and tricalcium phosphate, sintered at different mass % ratios. According to Raman scattering and X-ray diffraction data, the deposited hydroxyapatite coatings have a disordered structure. High-temperature treatment of the coatings in air leads to a transformation of the quasi-amorphous structure into a crystalline one. A correlation has been observed between the increase in the Ca content in the coatings and a subsequent decrease in Ca in the biphasic targets after a series of deposition processes. It was proposed that the addition of tricalcium phosphate to the targets would led to a finer coating's surface topography with the average size of 78 nm for the structural elements.

Keywords
RF-magnetron sputteringBiphasic hydroxyapatite-tricalcium phosphate targetsThin hydroxyapatite coatingsPlasma coatingsBiocompatibility
DOI
10.1016/j.bioactmat.2017.07.003
Hyperlink
https://www.sciencedirect.com/science/article/pii/S2452199X1730021X

Prosolov, K., Popova, K., Belyavskaya, O., Rau, J., Gross, K., Ūbelis, A., Sharkeev, Y. RF Magnetron-Sputtered Coatings Deposited from Biphasic Calcium Phosphate Targets for Biomedical Implant Applications. Bioactive Materials, 2017, Vol.2, Iss. 3, pp.170-176. ISSN 2452-199X. Available from: doi:10.1016/j.bioactmat.2017.07.003

Publication language
English (en)