Comparison Study on the Properties of the CaP Coatings Formed by RF-magnetron Sputtering of the Mg- and Sr-substituted β-tricalcium Phosphate and Hydroxyapatite

2020 ◽  
Author(s):  
Alexander Fedotkin ◽  
Anna Kozelskaya ◽  
Natalia Korotchenko ◽  
Alexander Gigilev ◽  
Evgeny Shesterikov ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Tricalcium Phosphate ◽  
Rf Magnetron Sputtering ◽  
Comparison Study

RF magnetron sputtering of a hydroxyapatite target: A comparison study on polytetrafluorethylene and titanium substrates

2017 ◽  
Vol 414 ◽  
pp. 335-344 ◽  
Author(s):  
Roman A. Surmenev ◽  
Maria A. Surmeneva ◽  
Irina Yu. Grubova ◽  
Roman V. Chernozem ◽  
Bärbel Krause ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Rf Magnetron Sputtering ◽  
Comparison Study ◽  
Titanium Substrates

scholarly journals Porous CaP Coatings Formed by Combination of Plasma Electrolytic Oxidation and RF-Magnetron Sputtering

Coatings ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1113
Author(s):  
Anna Kozelskaya ◽  
Gleb Dubinenko ◽  
Alexandr Vorobyev ◽  
Alexander Fedotkin ◽  
Natalia Korotchenko ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Young’S Modulus ◽  
Tricalcium Phosphate ◽  
Plasma Electrolytic Oxidation ◽  
Young's Modulus ◽  
Rf Magnetron Sputtering ◽  
Nanoindentation Test ◽  
X Ray ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

The porous CaP subcoating was formed on the Ti6Al4V titanium alloy substrate by plasma electrolytic oxidation (PEO). Then, upper coatings were formed by radio frequency magnetron sputtering (RFMS) over the PEO subcoating by the sputtering of various CaP powder targets: β-tricalcium phosphate (β-TCP), hydroxyapatite (HA), Mg-substituted β-tricalcium phosphate (Mg-β-TCP) and Mg-substituted hydroxyapatite (Mg-HA), Sr-substituted β-tricalcium phosphate (Sr-β-TCP) and Sr-substituted hydroxyapatite (Sr-HA). The coating surface morphology was studied by scanning electron and atomic force microscopy. The chemical composition was determined by X-ray photoelectron spectroscopy. The phase composition of the coatings was studied by X-ray diffraction analysis. The Young’s modulus of the coatings was studied by nanoindentation test. RF-magnetron sputtering treatment of PEO subcoating resulted in multileveled roughness, increased Ca/P ratio and Young’s modulus and enrichment with Sr and Mg. Sputtering of the upper layer also helped to adjust the coating crystallinity.

Single Crystal, High Band Gap CdS Thin Films Grown by RF Magnetron Sputtering in Argon Atmosphere for Solar Cell Applications

2018 ◽  
Vol 10 (3) ◽  
pp. 03005-1-03005-6 ◽  
Author(s):  
Rupali Kulkarni ◽  
◽  
Amit Pawbake ◽  
Ravindra Waykar ◽  
Ashok Jadhawar ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cell ◽  
Magnetron Sputtering ◽  
Single Crystal ◽  
Band Gap ◽  
Rf Magnetron Sputtering ◽  
Argon Atmosphere ◽  
Cds Thin Films ◽  
High Band

scholarly journals Effects of Long Durations of RF–Magnetron Sputtering Deposition of Hydroxyapatite on Titanium Dental Implants

2021 ◽  
Author(s):  
Ihab Nabeel Safi ◽  
Basima Mohammed Ali Hussein ◽  
Hikmat J. Aljudy ◽  
Mustafa S. Tukmachi
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Magnetron Sputtering ◽  
Dental Implants ◽  
Substrate Surface ◽  
Rf Magnetron Sputtering ◽  
P Value ◽  
Edx Analysis ◽  
Significant Difference ◽  
Scanning Electron

Abstract Objectives Dental implant is a revolution in dentistry; some shortages are still a focus of research. This study use long duration of radiofrequency (RF)–magnetron sputtering to coat titanium (Ti) implant with hydroxyapatite (HA) to obtain a uniform, strongly adhered in a few micrometers in thickness. Materials and Methods Two types of substrates: discs and root form cylinders were prepared using a grade 1 commercially pure (CP) Ti rod. A RF–magnetron sputtering device was used to coat specimens with HA. Magnetron sputtering was set at 150 W for 22 hours at 100°C under continuous argon gas flow and substrate rotation at 10 rpm. Coat properties were evaluated via field emission scanning electron microscopy (FESEM), scanning electron microscopy–energy dispersive X-ray (EDX) analysis, atomic force microscopy, and Vickers hardness (VH). Student’s t-test was used. Results All FESEM images showed a homogeneous, continuous, and crack-free HA coat with a rough surface. EDX analysis revealed inclusion of HA particles within the substrate surface in a calcium (Ca)/phosphorus (P) ratio (16.58/11.31) close to that of HA. Elemental and EDX analyses showed Ca, Ti, P, and oxygen within Ti. The FESEM views at a cross-section of the substrate showed an average of 7 µm coat thickness. Moreover, these images revealed a dense, compact, and uniform continuous adhesion between the coat layer and the substrate. Roughness result indicated highly significant difference between uncoated Ti and HA coat (p-value < 0.05). A significant improvement in the VH value was observed when coat hardness was compared with the Ti substrate hardness (p-value < 0.05). Conclusion Prolonged magnetron sputtering successfully coat Ti dental implants with HA in micrometers thickness which is well adhered essentially in excellent osseointegration.

Large-area CsPbBr3 perovskite films grown with effective one-step RF-magnetron sputtering

2021 ◽  
Vol 129 (24) ◽  
pp. 245303
Author(s):  
Fan Xu ◽  
Yujiao Li ◽  
Beilei Yuan ◽  
Yongzheng Zhang ◽  
Haoming Wei ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Rf Magnetron Sputtering ◽  
Large Area ◽  
One Step
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