Hydroxyapatite: from Plasma Spray to Electrochemical Deposition

Serekian, P.

doi:10.1007/978-2-8178-0851-2_3

Cited by 10 publications

(4 citation statements)

References 8 publications

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“…It is suggested that a chemical bond forms at the HA/titanium interface as a consequence of the energetic ion bombardment process. The coating thickness associated with the IBAD process is typically in the 2–4 μm range and can be made thicker with extended exposure times 48…”

Section: Specific Ionsmentioning

confidence: 99%

Surface modification of titanium and titanium alloys by ion implantation

et al. 2010

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Titanium and titanium alloys are widely used in biomedical devices and components, especially as hard tissue replacements as well as in cardiac and cardiovascular applications, because of their desirable properties, such as relatively low modulus, good fatigue strength, formability, machinability, corrosion resistance, and biocompatibility. However, titanium and its alloys cannot meet all of the clinical requirements. Therefore, to improve the biological, chemical, and mechanical properties, surface modification is often performed. In view of this, the current review casts new light on surface modification of titanium and titanium alloys by ion beam implantation.

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Section: Specific Ionsmentioning

confidence: 99%

Surface modification of titanium and titanium alloys by ion implantation

et al. 2010

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“…14,15 However, the bioactivity of the HA coating thus produced is not well controllable due to HA phase transitions 16 at the ultrahigh working temperatures of up to 20,000 C. Recently, a number of alternative approaches have been developed which allow processing at much lower temperatures. 17 These include electrochemical deposition (ECD), 18,19 electrophoretic deposition, 20 and atomic layer deposition. 21 Among these approaches, ECD offers the additional advantage that it can create a uniform HA layer within a porous coating by depositing a 20-lm thick HA layer on sintered Ti beads used to generate the coating, exemplified by Peri-apatite TM .…”

Section: Introductionmentioning

confidence: 99%

A novel composite porous coating approach for bioactive titanium‐based orthopedic implants

Qiu

Zhang

Grøndahl

2012

J Biomedical Materials Res

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Surface modification of titanium-based implants is considered a highly effective solution to enhance osseointegration. This study describes a novel Ti/hydroxyapatite (HA) composite porous coating produced using a cold spraying technique. Experimental results indicate desirable open-cell structure with 50-150 μm pore size and 60-65% macroporosity. In particular, the reinforced HA particles are exposed to the surface of the coating resulting in enhanced mineralization ability in simulated body fluid. None of the coatings displayed a cytotoxic response in SaOS-2 cells cultured in vitro for up to 48 h. The bond strength between the porous coating and the Ti substrate was found to be 20 MPa. These properties are comparative to or better than products currently on the market and thus this novel coating has potential use in orthopedics.

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“…However, the bioactivity of the HA coating thus produced is not well controllable due to HA phase transitions16 at the ultrahigh working temperatures of up to 20,000°C. Recently, a number of alternative approaches have been developed which allow processing at much lower temperatures 17. These include electrochemical deposition (ECD),18, 19 electrophoretic deposition,20 and atomic layer deposition 21.…”

Section: Introductionmentioning

confidence: 99%

Microinjection molding of light‐guided plates using LIGA‐like fabricated stampers

Huang

2011

J of Applied Polymer Sci

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This investigation explores the microinjection molding of light-guided plates (LGPs) using lithography, electroplating, and molding (LIGA)-like fabricated stampers. The 3.5-in.LGP has a thin wall (0.76 mm) and micron-sized features of truncated pyramidal prisms (70 lm wide and 38.3 lm deep, with a vertex angle of 70.5) and v-grooves (9.8 lm deep). Stampers for LGP injection molding (IM) are fabricated precisely by combining the anisotropic wet etching of silicon-on-insulation wafers with electroforming.LGPs must have multiple quality characteristics, such as good replication effects on microfeatures and flatness of the plate. In this study, the Taguchi method and gray relational analysis are adopted to optimize the microinjection molding parameters. Various IM parameters, including mold temperature, melt temperature, holding pressure, and injection speed, are considered. Experimental results demonstrate that mold temperature and holding pressure dominate the performance. Gray relational analysis and the Taguchi method can be used to determine the optimal process parameters for LGP molding.

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Hydroxyapatite: from Plasma Spray to Electrochemical Deposition

Cited by 10 publications

References 8 publications

Surface modification of titanium and titanium alloys by ion implantation

Surface modification of titanium and titanium alloys by ion implantation

A novel composite porous coating approach for bioactive titanium‐based orthopedic implants

Microinjection molding of light‐guided plates using LIGA‐like fabricated stampers

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