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A kind of zn-se alloy and its preparation method and application

A zn-se and alloy technology, applied in the field of Zn-Se alloy and its preparation, can solve the problems of high volatility, difficulty in dissolving, poor solid solution ability of Zn and Se, etc., and achieve suitable degradation speed, excellent mechanical properties, excellent biological The effect of medical value

Active Publication Date: 2022-05-27
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, from the Zn-Se phase diagram, it can be seen that the melting point of Zn is 420°C and the boiling point is 907°C, while the melting point of Se is 220°C and the boiling point is 685°C. The solid solution ability between Se is poor, and the existing ZnSe preparation technologies mainly include chemical deposition, chemical vapor deposition, electrochemical deposition, molecular beam epitaxy, metal organic chemical vapor deposition, photochemical deposition, etc., but these methods It is limited to the preparation of micron-scale and nano-scale ZnSe materials, and there is no method for preparing Zn-Se alloy materials that can be used as bulk implant materials in the prior art

Method used

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  • A kind of zn-se alloy and its preparation method and application
  • A kind of zn-se alloy and its preparation method and application
  • A kind of zn-se alloy and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0034] First, Zn powder particles with a purity of 99.9% with an average particle size of 35 μm and Se powder particles with a purity of 99.9% with an average particle size of 3 μm were used to mix evenly, and weighed according to the mass ratio of the two elements in the sample. The mass of powder is 1000g, and the mass of Se powder is 20g, and high-energy ball milling is carried out under the protection of argon. Press molding, flatten the surface, and then perform hot pressing sintering. The temperature is controlled at 480 °C, and the sintering time is 30 minutes. After the powder metallurgy ingot is kept at 320 °C for 8 hours for homogenization annealing, it is prepared by wire cutting into a diameter of 10mm and a length of 19mm. of cylindrical samples.

[0035]The high-pressure experiment was carried out using the CS-1B high-pressure six-sided top press produced by Zhengzhou Abrasives Grinding Research Institute Co., Ltd. The set pressure is 5GPa, and the heating tempe...

Embodiment 2

[0044] First, Zn powder particles with a purity of 99.9% with an average particle size of 35 μm and Se powder particles with a purity of 99.9% with an average particle size of 3 μm were used to mix evenly, and weighed according to the mass ratio of the two elements in the sample. The mass of powder is 1000g, and the mass of Se powder is 40g, and high-energy ball milling is carried out under the protection of argon. The ball milling speed is 200r / min, and the ratio of ball to material is 3:1. Press molding, flatten the surface and then hot-press sintering, the temperature is controlled at 480°C, and the sintering time is 30min. After the powder metallurgy ingot was kept at 320°C for 8h for homogenization annealing, a cylindrical sample with a diameter of 10mm and a length of 19mm was prepared by wire cutting.

[0045] The high-pressure experiment was carried out using the CS-1B high-pressure six-sided top press produced by Zhengzhou Abrasives Grinding Research Institute Co., Lt...

Embodiment 3

[0049] First, Zn powder particles with a purity of 99.9% with an average particle size of 35 μm and Se powder particles with a purity of 99.9% with an average particle size of 3 μm were used to mix evenly, and weighed according to the mass ratio of the two elements in the sample. The mass of powder is 1000g, and the mass of Se powder is 20g, and high-energy ball milling is carried out under the protection of argon. Press molding, flatten the surface and then hot-press sintering, the temperature is controlled at 480°C, and the sintering time is 30min. After the powder metallurgy ingot was kept at 320°C for 8h for homogenization annealing, a cylindrical sample with a diameter of 10mm and a length of 19mm was prepared by wire cutting.

[0050] The high-pressure experiment was carried out using the CS-1B high-pressure six-sided top press produced by Zhengzhou Abrasives Grinding Research Institute Co., Ltd. The set pressure was 3GPa, and the heating temperature was 1100°C accordin...

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Abstract

The invention discloses a Zn-Se alloy and its preparation method and application. The preparation method of the Zn-Se alloy comprises the following steps of ball milling Zn powder and Se powder to obtain alloy powder, pressing and molding to obtain a compact, and pressing The blank is hot-pressed and sintered to obtain a powder metallurgy piece, and the powder metallurgy piece is subjected to homogenization annealing treatment to obtain an annealed piece, and then the annealed piece is subjected to GPa-level ultra-high pressure synthesis to obtain a Zn-Se alloy. By adopting the preparation method of the present invention, up to 10% of Se can be completely dissolved in Zn, and the obtained Zn-Se alloy has excellent mechanical properties, the most suitable degradation speed, and excellent anti-tumor effect, and can be used as an anti-tumor drug. It is a degradable bone implant material and has excellent biomedical value.

Description

technical field [0001] The invention belongs to the technical field of biodegradable zinc alloys, and particularly relates to a Zn-Se alloy and a preparation method and application thereof. Background technique [0002] For magnesium (Mg)-based alloys and iron (Fe)-based alloys, most magnesium alloys have the disadvantages of too fast degradation rate and too slow degradation rate of iron-based alloys. The standard electrode potential of zinc (Zn) is between magnesium and iron, so the corrosion rate of zinc and its alloys is between the two, and it is considered to be a more promising biodegradable metal material for human implants. At the same time, Zn is an essential trace metal element in the human body and its content is second only to Fe. Due to its hexagonal close-packed lattice, pure zinc has low strength and elongation in the as-cast state, making it difficult to meet the performance requirements of implant materials. At present, zinc alloy degradable biomaterials ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/04C22C18/00A61L27/04A61L27/58
CPCC22C1/0483C22C18/00A61L27/047A61L27/58
Inventor 林建国张淼张德闯童先蔡文昊戴翌龙林继兴
Owner XIANGTAN UNIV