scholarly journals The influence of discharge power and heat treatment on calcium phosphate coatings prepared by RF magnetron sputtering deposition

2007 ◽  
Vol 18 (6) ◽  
pp. 1061-1069 ◽  
Author(s):  
Yan Yonggang ◽  
J. G. C. Wolke ◽  
Li Yubao ◽  
J. A. Jansen
Keyword(s):  
Heat Treatment ◽  
Calcium Phosphate ◽  
Magnetron Sputtering ◽  
Rf Magnetron Sputtering ◽  
Discharge Power ◽  
Sputtering Deposition ◽  
Phosphate Coatings ◽  
Calcium Phosphate Coatings

Calcium Phosphate Coating on Titanium by RF Magnetron Sputtering

2012 ◽  
pp. 223-233
Author(s):  
Takayuki Narushima ◽  
Kyosuke Ueda
Keyword(s):  
Calcium Phosphate ◽  
Magnetron Sputtering ◽  
Rf Magnetron Sputtering ◽  
Calcium Phosphate Coating ◽  
Phosphate Coating ◽  
Metallic Biomaterials ◽  
Phosphate Coatings ◽  
Calcium Phosphate Coatings

In this chapter, the authors discuss the fabrication and properties of calcium phosphate coatings on titanium (Ti) by radio-frequency (RF) magnetron sputtering. First, they address the necessity of surface modification of metallic biomaterials and the effectiveness of calcium phosphate coating. Next, they briefly review the processes used in the application of calcium phosphate coatings and present the effect of sputtering parameters on the phase and deposition rates of these coatings. Finally, the chapter discusses the performance of amorphous and crystalline (oxyapatite) calcium phosphate coatings on Ti based on in vitro and in vivo evaluations.

Mechanical Properties of Calcium Phosphate Coatings Produced by Method of RF-Magnetron Sputtering on Bioinert Alloys

2014 ◽  
Vol 1013 ◽  
pp. 188-193 ◽  
Author(s):  
Kseniya Kulyashova ◽  
Yuri P. Sharkeev ◽  
Aizhan Sainova
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Calcium Phosphate ◽  
Magnetron Sputtering ◽  
Adhesion Strength ◽  
Rf Magnetron Sputtering ◽  
Calcium Phosphate Coating ◽  
Phosphate Coating ◽  
Phosphate Coatings ◽  
Calcium Phosphate Coatings

Results of research of mechanical properties of calciumphosphate coatings produced by the method radio frequency magnetron sputtering on bioinert alloys of titanium, zirconium and were presented. Calcium phosphate coatings show high value of adhesion strength to bioinert metal surface. Calcium phosphate coating on titanium-niobium alloy surface shows the highest value of adhesion strength. Mechanical properties of a composite material based on bioinert alloy and calcium phosphate coating are higher than properties of the components of composite material separately.

Thin calcium-phosphate coatings produced by RF magnetron sputtering and prospects for their use in biomedical engineering

2008 ◽  
Vol 42 (3) ◽  
pp. 123-127 ◽  
Author(s):  
A. M. Aronov ◽  
V. F. Pichugin ◽  
E. V. Eshenko ◽  
M. A. Ryabtseva ◽  
R. A. Surmenev ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Magnetron Sputtering ◽  
Biomedical Engineering ◽  
Rf Magnetron Sputtering ◽  
Phosphate Coatings ◽  
Calcium Phosphate Coatings

Formation Hybrid Method of Multilayer Biocoatings, Based on PVD Technology

2013 ◽  
Vol 872 ◽  
pp. 241-247
Author(s):  
Sergey Ivanovich Tverdokhlebov ◽  
Evgeniy Viktorovich Shesterikov ◽  
Alena Igorevna Malchikhina
Keyword(s):  
Calcium Phosphate ◽  
Hybrid Method ◽  
Multilayer Coating ◽  
Rf Magnetron Sputtering ◽  
Hybrid Coatings ◽  
Mechanical And Tribological Properties ◽  
Technical Requirements ◽  
Phosphate Coatings ◽  
Calcium Phosphate Coatings ◽  
Physical And Chemical

Hybrid method of obtaining calcium-phosphate coatings is presented in this article. Physical and chemical, mechanical and tribological hybrid coatings research makes it possible to determine the coatings formation modes satisfying medical and technical requirements. This multilayer coating consists of an oxide underlayer formed by gas thermal oxidation and calcium phosphate layer formed by RF magnetron sputtering at a frequency of 13.56 MHz. Experiments were carried out in different modes. Calcium-phosphate coatings formed in mixture of argon and oxygen at 1:1 ratio pressure of 0.3 Pa have the best physical and chemical, mechanical and tribological properties.

Biomimetic calcium phosphates-based coatings deposited on binary Ti-Mo alloys modified by laser beam irradiation for biomaterial/clinical applications

MRS Advances ◽  
2018 ◽  
Vol 3 (30) ◽  
pp. 1711-1718 ◽  
Author(s):  
Marcio Luiz dos Santos ◽  
Carla dos Santos Riccardi ◽  
Edson de Almeida Filho ◽  
Antonio C. Guastaldi
Keyword(s):  
Heat Treatment ◽  
Calcium Phosphate ◽  
Laser Beam ◽  
Calcium Phosphates ◽  
Clinical Applications ◽  
Beam Irradiation ◽  
Phosphate Coatings ◽  
Laser Beam Irradiation ◽  
Biomimetic Method ◽  
Calcium Phosphate Coatings

ABSTRACTBiomimetic Method has been widely used to prepare calcium phosphate coatings on Ti and its alloys. This modification is based on a Synthetic/simulated Body Fluid (BSF) which facilitates the mimicking of the biological process in order to provide hard tissue repairs. The formation of HA and other calcium phosphates under biological medium and SBF occurs in the presence of Ca2+ and PO43- ions, as well as essential ions such as: Mg2+, HCO3-, K+ and Na+. Ti-15Mo alloy samples were irradiated by pulsed Yb: YAG pulsed laser beam under air and atmospheric pressure. Sequentially, calcium phosphate coatings were deposited on the irradiated surfaces by the biomimetic method. The biomimetic calcium phosphates-based surfaces were submitted to heat treatment conditions at 350°C and 600°C. The present study correlates two conditions of fluency (1,91 and 5,54 J.cm-2) as established have a sufficient energy to promote ablation on the laser beam irradiated surfaces. Likewise, it has been demonstrated the processes of fusion and fast solidification from the laser beam irradiation, under ambient atmosphere, inducing the formation of stoichiometric TiO2 and non-stoichiometric titanium oxides, including Ti3O5, TiO, Ti3O and Ti6O with different oxide percentages depending on the fluency applied. Besides that, laser modification has allowed a clean and reproducible process, providing no traces of contamination, an important feature for clinical applications. The physico-chemical and morphological analysis indicated the formation of a multiphase coatings depending on the heat treatment temperature performed to 350 °C (ACP1 and 2, HAD, HA phases) and 600 °C (HAD, HA and β-TCP phases). It is worth noting that multiphasic bioceramic systems has been gaining attention for biomedical applications. Thus, the laser beam irradiation associated to bioactive coatings of calcium phosphates of biological interest have shown to be promising and economically feasible for use in dental and orthopedic implants.

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