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Preparation method of porous biological activity ceramic film on surface of porous pure titanium or titanium alloy with lattice structure and application thereof

A technology of bioactive ceramics and lattice structure, applied in the direction of surface reaction electrolytic coating, electrolytic coating, coating, etc., to achieve the effect of good combination, high biological activity and uniform thickness

Active Publication Date: 2017-05-17
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, micro-arc oxidation is limited to the film preparation of titanium alloy bulk materials. For porous materials, especially titanium and titanium alloys with lattice structure porous prepared by electron beam molten metal forming technology (EBM), in its The formation of porous biocoating on the surface has not been reported

Method used

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  • Preparation method of porous biological activity ceramic film on surface of porous pure titanium or titanium alloy with lattice structure and application thereof
  • Preparation method of porous biological activity ceramic film on surface of porous pure titanium or titanium alloy with lattice structure and application thereof
  • Preparation method of porous biological activity ceramic film on surface of porous pure titanium or titanium alloy with lattice structure and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] 1. Material preparation: Ti-6Al-4V titanium alloy with a porosity of 50% and porous lattice structure was prepared by electron beam molten metal forming technology ( figure 1 (a)).

[0040] 2. Chemical pickling:

[0041] The pickling solution is composed of: 40% (volume concentration) HF 2ml / L, 70% (volume concentration) HNO 3 5ml / L, citric acid 5g / L, the slow-release agent is o-nitrophenol, and the rest is water.

[0042] Pickling liquid temperature: room temperature, processing time 20 seconds, immediately wash with tap water for 1 to 2 minutes after taking out, and then wash with deionized water for 1 to 2 minutes.

[0043] 3. Preparation of prefabricated anodized film:

[0044] Electrolyte composition: sodium dihydrogen phosphate with a concentration of 30g / L, sodium oxalate with a concentration of 5g / L, oxalic acid with a concentration of 1g / L, sodium dodecylsulfonate with a concentration of 0.5g / L, and the rest is water .

[0045] In the process of oxide fil...

Embodiment 2

[0054] 1. Material preparation: Ti-6Al-4V titanium alloy with porosity of 70% and porous lattice structure was prepared by electron beam molten metal forming technology ( figure 1 (c)).

[0055] 2. Chemical pickling:

[0056] The pickling solution is composed of: 40% (volume concentration) HF 1ml / L, 70% (volume concentration) HNO 3 3ml / L, tartaric acid 3g / L, sustained-release agent is p-dinitrophenol, and the rest is water.

[0057] Pickling liquid temperature: room temperature, processing time 20 seconds, immediately wash with tap water for 1 to 2 minutes after taking out, and then wash with deionized water for 1 to 2 minutes.

[0058] 3. Preparation of prefabricated anodized film:

[0059] Electrolyte composition: sodium dihydrogen phosphate with a concentration of 20g / L, sodium oxalate with a concentration of 8g / L, phosphoric acid with a concentration of 0.5g / L, sodium dodecylsulfonate with a concentration of 0.5g / L, and the rest water.

[0060] During the preparation...

Embodiment 3

[0069] 1. Material preparation: The β-titanium alloy with a porosity of 60% and a porous lattice structure was prepared by electron beam molten metal forming technology.

[0070] 2. Chemical pickling:

[0071] The pickling solution is composed of: 40% (volume concentration) HF 2ml / L, 70% (volume concentration) HNO 3 7ml / L, malic acid 5g / L, the slow-release agent is picric acid, and the rest is water.

[0072] Pickling liquid temperature: room temperature, processing time 20 seconds, immediately wash with tap water for 1 to 2 minutes after taking out, and then wash with deionized water for 1 to 2 minutes.

[0073] 3. Preparation of prefabricated anodized film:

[0074] Electrolyte composition: sodium dihydrogen phosphate with a concentration of 20g / L, sodium oxalate with a concentration of 8g / L, phosphoric acid with a concentration of 2g / L, sodium lauryl sulfate with a concentration of 0.5g / L, and the rest is water.

[0075] During the preparation of the oxide film, circula...

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Abstract

The invention discloses a preparation method of a porous biological activity ceramic film on a surface of a porous pure titanium or titanium alloy with a lattice structure and application thereof, and belongs to the technical field of metal surface treatment. The method comprises chemical polishing, preparation of a prefabricated oxide film under direct-current voltage, and preparation of the porous biological activity ceramic film under square wave pulse voltage. The chemical polishing is a chemical acid washing method. The oxide film prefabrication is a low-voltage direct-current anodic oxidation method; and a porous biologic activity functional ceramic layer adopts a micro arc oxidation preparation method. The ceramic layer obtained by the method is firm in combination with a basal body, has a micron-size cellular structure on the surface, can singly serve as a biologic functional coating layer, and can be subsequently treated to prepare a composite functional coating layer higher in corrosion resistance, wear resistance, biologic activity and bacteria resistance. An interbody fusion cage for the field of orthopedics or an implant for the field of dentistry manufactured based on the method shortens the synostosis time of the implant body.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a preparation method and application of a porous bioactive ceramic film on the surface of pure titanium or titanium alloy with a porous lattice structure. Background technique [0002] Electron Beam Melting Metal Forming (EBM) is one of the advanced manufacturing technologies that have developed rapidly in recent years. This technology embodies the comprehensive application of computer-aided design, numerical control, electron beam processing, new material development and other multi-disciplinary and multi-technical applications. It can quickly prepare metal parts with high precision and complex structure, and has high precision, high efficiency and high performance. It has a wide range of applications in medical, aerospace, chemical and other fields. Foreign scholars have applied EBM technology to prepare Ti-6Al-4V alloys for medical surgical implants and human ...

Claims

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Application Information

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IPC IPC(8): C25D11/26A61L27/30A61L27/56A61L27/06
Inventor 张伟李述军张涛侯文韬郝玉琳王福会
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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