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Tantalum boride bio-coating, and production method and application thereof

A bio-coating, tantalum boride technology, applied in coating, metal material coating process, ion implantation plating, etc. Good biological activity, reducing the effect of precipitation of toxic elements

Active Publication Date: 2018-01-16
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existence or precipitation of some elements will cause long-term health problems in the human body: for example, Al can cause Alzheimer's disease, nervous system diseases, and cartilage diseases; Existence is poisonous
[0004] At present, based on the biologically active metal tantalum, the tantalum boride compound and its boron-rich structure thin film material by forming a stable structure with boron atoms, and applying it to the surface modification of new biomedical implant materials has not been reported.

Method used

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  • Tantalum boride bio-coating, and production method and application thereof
  • Tantalum boride bio-coating, and production method and application thereof
  • Tantalum boride bio-coating, and production method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The biomedical titanium alloy (Ti6Al4V) with a diameter of 10 mm and a thickness of 1 mm was polished step by step by 400 mesh, 800 mesh and 1200 mesh silicon carbide sandpaper. Use acetone, absolute ethanol and deionized water to clean ultrasonically for 15 minutes, and blow dry with nitrogen;

[0029] Install the medical titanium alloy substrate obtained by the above cleaning on the sample stage, and install the tantalum target and the boron target on the target stage respectively; adjust the distance between the target and the substrate to be 8cm; turn on the mechanical pump and the molecular pump successively Vacuum, the vacuum degree reaches 4×10 -4 Below Pa; pass in pure argon, and pre-sputter the target for 15 minutes;

[0030] Set the power of the tantalum target to 30W, the power of the boron target to 250W, the base distance of the target to 6cm, the total sputtering pressure to 1.0Pa, the deposition temperature to room temperature, and the voltage applied to...

Embodiment 2

[0033] The biomedical titanium alloy (Ti6Al4V) with a diameter of 10 mm and a thickness of 1 mm was polished step by step by 400 mesh, 800 mesh and 1200 mesh silicon carbide sandpaper. Use acetone, absolute ethanol and deionized water to clean ultrasonically for 15 minutes, and blow dry with nitrogen;

[0034] Install the medical titanium alloy substrate obtained by the above cleaning on the sample stage, and install the tantalum target and the boron target on the target stage respectively; adjust the distance between the target and the substrate to 10cm; turn on the mechanical pump and the molecular pump successively Vacuum, the vacuum degree reaches 4×10 -4 Below Pa; pass in pure argon, and pre-sputter the target for 15 minutes;

[0035] The power of the tantalum target is set to 60W, the power of the boron target is set to 300W, the target base distance is 10cm, the total sputtering pressure is 1.0Pa, the deposition temperature is room temperature, and the voltage applied ...

Embodiment 3

[0038]The biomedical titanium alloy (Ti6Al4V) with a diameter of 10 mm and a thickness of 1 mm was polished step by step by 400 mesh, 800 mesh and 1200 mesh silicon carbide sandpaper. Use acetone, absolute ethanol and deionized water to clean ultrasonically for 15 minutes, and blow dry with nitrogen;

[0039] Install the medical titanium alloy substrate obtained by the above cleaning on the sample stage, and install the tantalum target and the boron target on the target stage respectively; adjust the distance between the target and the substrate to 9cm; turn on the mechanical pump and the molecular pump successively Vacuum, the vacuum degree reaches 4×10 -4 Below Pa; pass pure argon gas, and pre-sputter the target for 10 minutes; to remove the impurity atoms adsorbed on the target.

[0040] Set the power of the tantalum target to 45W, the power of the boron target to 350W, the target base distance to 9cm, the total sputtering pressure to 0.8Pa, the deposition temperature to r...

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Abstract

The invention belongs to the technical field of high bioactive film materials on the surfaces of biomedical implant materials, and concretely relates to a controllable production method of a boron-rich structure tantalum boride film. A new-generation medical implant material is adopted as a substrate, a metal tantalum target and a boron target are selected in a vacuum chamber, argon is used as a discharge gas, different radiofrequency powers are applied to the metal tantalum target and the boron target in the deposition process, and the phase structure of the film is regulated and controlled by controlling the working gas pressure and the substrate bias in order to finally obtain the tantalum boride coating having a dense and large-area boron-rich structure. The coating is nontoxic, hasgood biocompatibility, good osteoinductivity and high resistance to body fluid corrosion, and can effectively prevent the precipitation and diffusion of toxic ions in the medical implant material. Theproduction method of the coating has the advantages of simplicity, high efficiency, low cost and simple process, so the coating can be used as a surface modification coating for novel medical implantmaterials.

Description

technical field [0001] The invention belongs to the technical field of thin film materials with high biological activity, in particular to a tantalum boride thin film material with a boron-rich structure deposited on the surface of a novel medical implant material based on a multi-target radio frequency magnetron co-sputtering method and a preparation method thereof , so as to improve the biological activity and corrosion resistance of medical implant materials, and realize the function of diffusion barrier to prevent the precipitation of ions in medical implant materials, and improve the application of medical implant materials in hard tissue substitutes. Background technique [0002] Metal-based medical implant materials have good biocompatibility, low elastic modulus, and good corrosion resistance, and have become the most widely used hard tissue replacement materials in clinical practice. . However, there are still some problems with the commonly used metal-based medica...

Claims

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Application Information

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IPC IPC(8): A61L27/30A61L27/50C23C14/06C23C14/34C23C14/35
Inventor 张侃秦彦国刘贯聪李瑞延文懋郑伟涛
Owner JILIN UNIV
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