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Method for preparing praseodymium-doped titanium nitride coating on surface of medical titanium alloy

A technology of titanium nitride coating and titanium alloy, which is applied in metal material coating technology, coating, medical science, etc., can solve the problems of insufficient biological performance, blood corrosion resistance on the surface of medical titanium alloy, and improve biological performance. Improvement of performance and anti-corrosion performance, effect of reduction of hemolysis rate

Inactive Publication Date: 2014-09-17
XI AN JIAOTONG UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing a praseodymium-doped titanium nitride coating on the surface of a medical titanium alloy for the deficiencies of the prior art. The praseodymium-doped titanium nitride coating prepared by the method fundamentally solves the problem of Solved the problems of blood corrosion resistance and insufficient biological performance on the surface of medical titanium alloy

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  • Method for preparing praseodymium-doped titanium nitride coating on surface of medical titanium alloy
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  • Method for preparing praseodymium-doped titanium nitride coating on surface of medical titanium alloy

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] see Figure 1 to Figure 4 , the present invention prepares a method for preparing a praseodymium-doped titanium nitride coating on the surface of a medical titanium alloy, comprising the following steps:

[0025] 1) Cut a medical titanium alloy rod with a diameter of 25mm into a disc sample of φ25mm×2mm as a substrate, after degreasing and polishing the surface, immerse in acetone for ultrasonic cleaning, and finally dehydrate with alcohol.

[0026] 2) Put the pretreated medical titanium alloy as the base material into the magnetron sputtering ion coating equipment. Such as figure 1 As shown, the magnetron sputtering coating equipment at least includes a vacuum chamber B4, a sample disk B1, a Ti target 3, and a heater 2. The distance can be adjusted, the Ti target 3 and the sample plate B1 are equipped with a mechanical transmission ...

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Abstract

The invention discloses a method for preparing a praseodymium-doped titanium nitride coating on the surface of a medical titanium alloy. The method comprises the following steps: preparing a titanium nitride coating on the surface of the medical titanium alloy by utilizing a magnetron sputtering method; transferring the medical titanium alloy with the titanium nitride coating into a vacuum chamber A of a plasma-immersion-type ion implanter under the condition that a praseodymium target and a sample disk A are respectively arranged at two ends of the inside of the vacuum chamber A; fixing the medical titanium alloy with the titanium nitride coating on the sample disk A; regulating the vacuum degree of the vacuum chamber A under the condition that the praseodymium target is taken as an ion source of a cathode; regulating the rotating speed of the sample disk A and cooling the sample disk A in a water-cooling manner; and then, carrying out praseodymium ion implantation at a room temperature, thereby obtaining the praseodymium-doped titanium nitride coating prepared on the surface of the medical titanium alloy. According to the method disclosed by the invention, the corrosion resistance of the prepared praseodymium-doped titanium nitride coating is obviously superior to that of a common titanium nitride coating; the breeding and the spreading of a large quantity of vascular endothelial cells in the praseodymium-doped titanium nitride coating can be carried out, so that the biological performance of the medical titanium alloy is obviously improved.

Description

【Technical field】 [0001] The invention belongs to the field of preparation of coating materials, in particular to a method for preparing a praseodymium-doped titanium nitride coating on the surface of a medical titanium alloy. 【Background technique】 [0002] Cardiovascular system diseases are a kind of diseases that seriously threaten human life. At present, due to the limitation of the number of suitable organ transplants and the regeneration technology of human organs, the medical field mainly relies on titanium alloy materials such as vascular stents, artificial heart valves, and kidney filters. Implants to help patients treat diseases, these titanium alloy materials are also known as medical titanium alloy biomaterials. Biomaterials must possess good cell compatibility, corrosion resistance, and appropriate mechanical strength. The above-mentioned properties can be influenced by the surface characteristics of biomaterials. Surface chemical and physical characteristics,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/48C23C14/06A61L31/08A61L31/02A61L27/30A61L27/06
Inventor 马胜利张明徐可为
Owner XI AN JIAOTONG UNIV
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