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Microplasma spraying of hydroxyapatite coatings on additive manufacturing titanium implants with trabecular structures

Albina Kadyroldina
Albina Kadyroldina
, 
Darya Alontseva
Darya Alontseva
, 
Sergey Voinarovych
Sergey Voinarovych
, 
Leszek Łatka
Leszek Łatka
, 
Oleksandr Kyslytsia
Oleksandr Kyslytsia
, 
Bagdat Azamatov
Bagdat Azamatov
, 
Aleksandr Khozhanov
Aleksandr Khozhanov
, 
Nadezhda Prokhorenkova
Nadezhda Prokhorenkova
, 
Almira Zhilkashinova
Almira Zhilkashinova
 and 
Svitlana Burburska
Svitlana Burburska
   | Mar 06, 2023
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Published Online: Mar 06, 2023
Page range: 28 - 42
Received: Nov 23, 2022
Accepted: Jan 17, 2023
DOI: https://doi.org/10.2478/msp-2022-0043
Keywords
© 2023 Albina Kadyroldina et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Specimens of titanium trabecular substrates: detail of the endoprosthesis of the intervertebral disk (A); honeycomb structure (B)
Specimens of titanium trabecular substrates: detail of the endoprosthesis of the intervertebral disk (A); honeycomb structure (B)

Fig. 2

Schematic representation (with dimensions in centimeters) of the assembled test assembly for testing the adhesion strength of coatings to a substrate: 1 — specimen No. 1; 2 - sprayed coating; 3 - a layer of adhesive bonding agent (a layer of glue); 4 – specimen No. 2
Schematic representation (with dimensions in centimeters) of the assembled test assembly for testing the adhesion strength of coatings to a substrate: 1 — specimen No. 1; 2 - sprayed coating; 3 - a layer of adhesive bonding agent (a layer of glue); 4 – specimen No. 2

Fig. 3

Results of automated analysis with a color map of the deviations of a real specimen with a honeycomb structure from its stereolithographic (stl) model (A); visualization of the distribution of pores on a translucent three-dimensional model (B)
Results of automated analysis with a color map of the deviations of a real specimen with a honeycomb structure from its stereolithographic (stl) model (A); visualization of the distribution of pores on a translucent three-dimensional model (B)

Fig. 4

Results of automated analysis of the porosity of a specimen with a honeycomb structure; the arrows indicate the largest defect found at the indicated point
Results of automated analysis of the porosity of a specimen with a honeycomb structure; the arrows indicate the largest defect found at the indicated point

Fig. 5

Results of statistics on the analysis of the porosity (number of pores by volume) of a specimen with a honeycomb structure; statistics circled in red frame
Results of statistics on the analysis of the porosity (number of pores by volume) of a specimen with a honeycomb structure; statistics circled in red frame

Fig. 6

Results of automated analysis with a color map of deviations of a real part of the endoprosthesis from the stereolithographic (stl) model (A); the largest defect found (B)
Results of automated analysis with a color map of deviations of a real part of the endoprosthesis from the stereolithographic (stl) model (A); the largest defect found (B)

Fig. 7

Results of statistics on porosity analysis (number of pores by volume) for the part of the endoprosthesis; statistics circled in red frame
Results of statistics on porosity analysis (number of pores by volume) for the part of the endoprosthesis; statistics circled in red frame

Fig. 8

HA powder feedstock: SEM image of HA particles indicating particle size (A); TEM image of the HA powder particle with the corresponding indexed microelectron diffraction pattern with zone axis [011] (B); XRD pattern of HA powder (C). SEM, scanning electron microscopy; TEM, transmission electron microscopy; XRD, X-ray diffraction
HA powder feedstock: SEM image of HA particles indicating particle size (A); TEM image of the HA powder particle with the corresponding indexed microelectron diffraction pattern with zone axis [011] (B); XRD pattern of HA powder (C). SEM, scanning electron microscopy; TEM, transmission electron microscopy; XRD, X-ray diffraction

Fig. 9

HA-coating: SEM image of HA coating on a titanium trabecular 3D-printed substrate (A) and XRD pattern of microplasma-sprayed HA coating (B).HA, hydroxyapatite; SEM, scanning electron microscopy; TCP, tricalcium phosphate; XRD, X-ray diffraction
HA-coating: SEM image of HA coating on a titanium trabecular 3D-printed substrate (A) and XRD pattern of microplasma-sprayed HA coating (B).HA, hydroxyapatite; SEM, scanning electron microscopy; TCP, tricalcium phosphate; XRD, X-ray diffraction

Fig. 10

Specimens of 3D-printed titanium substrates with HA microplasma coating before (A) and after (B) tensile adhesion tests. HA, hydroxyapatite
Specimens of 3D-printed titanium substrates with HA microplasma coating before (A) and after (B) tensile adhesion tests. HA, hydroxyapatite

Chemical composition of Ti6Al4V titanium alloy (powder) according to ISO 5832-3

Element Wt.% of element
Fe <0.3
N <0.05
O <0.2
Al 5.5–6.75
C <0.08
V 3.5–4.5
H <0.015
Ti Balance
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