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Method for preparing rutile-type TiO2 thin film at room temperature

A rutile-type, gold-preparing technology, which is applied in the types of packaging items, metal material coating technology, ion implantation plating, etc., to achieve high anticoagulation, improve inhibition, and delay the formation of thrombus.

Inactive Publication Date: 2011-03-30
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, there is no single rutile TiO with high interfacial bonding force and anticoagulant property prepared at room temperature on the surface of titanium metal. 2 Thin films (without sacrificing the mechanical properties of the scaffold (substrate))

Method used

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  • Method for preparing rutile-type TiO2 thin film at room temperature
  • Method for preparing rutile-type TiO2 thin film at room temperature
  • Method for preparing rutile-type TiO2 thin film at room temperature

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Embodiment 1

[0030] Embodiment 1: Substrate ultrafine crystal / nanocrystalline titanium, surface film TiO 2 . Carry out by the step described in the technical scheme of the present invention. Thin films were prepared by JGP560CVI ultra-high vacuum multifunctional magnetron sputtering apparatus. Preparation of TiO 2 The background vacuum degree of thin film is 2.5×10 -5 Pa, substrate temperature is room temperature, target-substrate distance is 70mm. deposited TiO 2 The technology used in the film is direct current (DC) reactive magnetron sputtering technology. The target material is Ti with a purity of 99.99%. The flow rate is 45 sccm, the sputtering power is 160 W, and the sputtering time is 120 min.

[0031] The microstructure of ultrafine-grained / nanocrystalline titanium substrates is a mixed structure of nanocrystalline (figure 1 ); its SADE map shows that the orientation between the ultrafine crystal / nanocrystalline titanium grains is a large angle ( figure 2 ); the half-peak w...

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Abstract

The invention relates to a method for preparing rutile-type TiO2 thin film at room temperature, belonging to the field of surface engineering technique and biological materials. The single rutile-type TiO2 thin film is obtained on the surface of superfine crystal / nanometer crystal titanium at the room temperature by performing nanorization treatment on a titanium microstructure in advance and adopting a direct-current reaction magnetic control sputtering deposition technique. After nanorization of the titanium base material microstructure, the interface bonding force between the TiO2 thin film and the base material is improved remarkably, the technical problem of poor bonding condition between the TiO2 thin film with excellent anticoagulant property and a titanium vessel bracket is bettersolved and the bearing capacity of the interface is greatly improved. The invention better solves the problem that the single rutile-type TiO2 thin film is hard to prepare on the titanium surface at the room temperature, has simple process and is widely applied to the fields of vessel brackets, heart valves, and the like.

Description

technical field [0001] The present invention relates to the field of surface engineering technology and biomaterials, especially a method for preparing a thin film with special properties by pre-processing the microstructure of titanium metal, specifically a method for preparing a thin film on the surface of titanium metal by Channel angle shearing and low-temperature multi-step large-strain compression technology, pre-obtained titanium metal with a nano-sized microstructure, and used this as a substrate at room temperature to obtain a single rutile TiO with excellent anticoagulant performance and interfacial bonding force 2 The method of film preparation. Background technique [0002] Titanium and titanium alloys have high specific strength, high physiological corrosion resistance, and low elastic modulus, and are widely used in medical products such as artificial joints, bone trauma products, dental implants, artificial heart valves, and interventional vascular stents. Ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/08C22F1/18A61L33/02
Inventor 邵红红于春杭许晓静
Owner JIANGSU UNIV
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