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Ti5Si3 nanostructure reinforced TiC biological ceramic coating as well as preparation method and application thereof

A technology of bioceramics and nanostructures, which is applied in coatings, metal material coating processes, drug delivery, etc., to achieve the effects of low process cost, good market application prospects, and simple operation

Active Publication Date: 2021-06-22
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, on the preparation of Ti by laser cladding technology 5 Si 3 The technology of nanostructure enhanced TiC wear-resistant bioceramic coating has not been reported yet

Method used

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  • Ti5Si3 nanostructure reinforced TiC biological ceramic coating as well as preparation method and application thereof
  • Ti5Si3 nanostructure reinforced TiC biological ceramic coating as well as preparation method and application thereof
  • Ti5Si3 nanostructure reinforced TiC biological ceramic coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of Ti of the present invention 5 Si 3 A method for preparing a nanostructure-enhanced TiC bioceramic coating, comprising the following steps:

[0039] (1) TiC powder with a mass fraction of 90% (particle size is 40-60nm, purity ≥ 99.5%) and SiO with a mass fraction of 10% 2 Powder (3-6 μm in particle size, purity ≥ 99.9%) is added to a planetary ball mill and mixed evenly to obtain a mixed powder, the ball milling speed is 200rmp / min, and the ball milling time is 2h; the mixed powder is added to polyvinyl alcohol with a concentration of 1% vol In the aqueous solution, the mass ratio of the mixed powder and the polyvinyl alcohol aqueous solution is 0.45:2.8, and the stirring is continued, and then the ultrasonic vibration treatment is performed until the mixing is uniform, and the slurry is obtained; the Ti 6 al 4 The V titanium alloy plate is used as the base, and the size of the base is 30mm×30mm×6mm. The surface of the base is polished with 100-grit sandpape...

Embodiment 2

[0043] A kind of Ti of the present invention 5 Si 3 A method for preparing a nanostructure-enhanced TiC bioceramic coating, comprising the following steps:

[0044] (1) TiC powder with a mass fraction of 80% (particle size is 40-60nm, purity ≥ 99.5%) and SiO with a mass fraction of 20% 2 Powder (3-6 μm in particle size, purity ≥ 99.9%) is added to a planetary ball mill and mixed evenly to obtain a mixed powder, the ball milling speed is 200rmp / min, and the ball milling time is 2h; the mixed powder is added to polyvinyl alcohol with a concentration of 1% vol In the aqueous solution, the mass ratio of the mixed powder and the polyvinyl alcohol aqueous solution is 0.45:2.8, and the stirring is continued, and then the ultrasonic vibration treatment is performed until the mixing is uniform, and the slurry is obtained; the Ti 6 al 4 The V titanium alloy plate is used as the base, and the size of the base is 30mm×30mm×6mm. The surface of the base is polished with 100-grit sandpape...

Embodiment 3

[0049] A kind of Ti of the present invention 5 Si 3 A method for preparing a nanostructure-enhanced TiC bioceramic coating, comprising the following steps:

[0050] (1) TiC powder with a mass fraction of 70% (particle size is 40-60nm, purity ≥ 99.5%) and SiO with a mass fraction of 30% 2 Powder (3-6 μm in particle size, purity ≥ 99.9%) is added into a planetary ball mill and mixed evenly to obtain a mixed powder, the ball milling speed is 200rmp / min, and the ball milling time is 2h; the mixed powder is added to polyvinyl alcohol with a concentration of 1% vol In the aqueous solution, the mass ratio of the mixed powder and the polyvinyl alcohol aqueous solution is 0.45:2.8, and the stirring is continued, and then the ultrasonic vibration treatment is performed until the mixing is uniform, and the slurry is obtained; the Ti 6 al 4 The V titanium alloy plate is used as the base, and the size of the base is 30mm×30mm×6mm. The surface of the base is polished with 100-grit sandpa...

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Abstract

The invention provides a Ti5Si3 nanostructure reinforced TiC biological ceramic coating as well as a preparation method and application thereof. The preparation method comprises the following steps that mixed powder composed of TiC powder and SiO2 powder is blended into uniform slurry, and the surface of a pretreated substrate is coated with the slurry; and the surface of the substrate is dried, a preset layer is formed on the surface of the substrate, then the preset layer is treated by adopting a laser cladding process in a protective atmosphere and then is quickly cooled at room temperature, and therefore the Ti5Si3 nanostructure reinforced TiC biological ceramic coating is obtained on the surface of the substrate. The Ti5Si3 nanostructure reinforced TiC biological ceramic coating prepared through the method has high hardness and good biocompatibility and wear resistance, can be widely applied to the fields of medical treatment, industry and the like, and has good market application prospects.

Description

technical field [0001] The invention belongs to the technical field of ceramic coatings, in particular to a Ti 5 Si 3 Nanostructure-enhanced TiC bioceramic coating and its preparation method and application. Background technique [0002] Titanium alloys are often used as human implant materials due to their low density, low elastic modulus, high strength, and strong corrosion resistance. However, the low hardness and wear resistance of titanium alloy limit its application in heavy load and strong wear parts (such as artificial articular surface). Surface modification technology is an effective means to improve the surface properties of titanium alloys, but commonly used surface modification technologies, such as plasma spraying, chemical vapor deposition and other technologies, produce coatings with coarse grains, cracks and micropores, and the coating is not compatible with The base bonding force is poor, so it is not suitable for parts such as artificial articular surfa...

Claims

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Application Information

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IPC IPC(8): C23C24/10A61L27/06A61L27/30A61L27/50
CPCC23C24/10A61L27/06A61L27/306A61L27/50A61L2400/18A61L2420/02A61L2420/06
Inventor 刘德福陈涛邓子鑫
Owner CENT SOUTH UNIV
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