Zirconium base blocky amorphous/nanocrystalline alloy with antibacterial action and preparation method thereof

A nanocrystalline alloy, antibacterial technology, applied in the field of zirconium-based bulk amorphous/nanocrystalline alloy and its preparation, can solve the problem of high probability of bacterial infection, achieve good mechanical biocompatibility, good antibacterial or bacteriostatic, The effect of high yield strength

Inactive Publication Date: 2012-10-03
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical solution of the present invention is to solve the problem that the current medical metal materials, especially implanted materials, have a high probability of bacterial infection after operation. In order

Method used

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  • Zirconium base blocky amorphous/nanocrystalline alloy with antibacterial action and preparation method thereof
  • Zirconium base blocky amorphous/nanocrystalline alloy with antibacterial action and preparation method thereof
  • Zirconium base blocky amorphous/nanocrystalline alloy with antibacterial action and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0047] Example 1:

[0048] Zr with a diameter of 8mm is prepared by copper mold casting 53 Al 16C o 27.9 Ag 3.1 Bulk amorphous alloy

[0049] Step 1: Ingredients

[0050] Press Zr 53 Al 16 Co 27.9 Ag 3.1 The nominal composition of the raw material is weighed;

[0051] Among them, the mass percentage purity of zirconium (Zr) is 99.8%; the mass percentage purity of cobalt (Co) is 99.98%; the mass percentage purity of aluminum (Al) is 99.9%; the mass percentage purity of silver (Ag) is 99.9%.

[0052] Step 2: Smelting Zr 53 Al 16 Co 27.9 Ag 3.1 Master alloy

[0053] Put the raw materials weighed in step 1 into the vacuum electric arc furnace;

[0054] Adjust the vacuum degree of the vacuum chamber of the vacuum arc furnace to 5×10 -3 Pa, then filled with high purity (99.999%) argon to make the vacuum of the vacuum chamber to 0.5×10 5 Pa;

[0055] After 240s of arc melting, the arc is broken to form the first alloy ingot;

[0056] Turn over the first alloy ingot, and after arc melting for 180 ...

Example Embodiment

[0069] Example 2:

[0070] Zr with a diameter of 16mm is prepared by copper mold casting 53 Al 16 Co 24.8 Ag 6.2 Bulk amorphous alloy

[0071] Step 1: Ingredients

[0072] Press Zr 53 Al 16 Co 24.8 Ag 6.2 The nominal composition of the raw material is weighed;

[0073] Among them, the mass percentage purity of zirconium (Zr) is 99.8%; the mass percentage purity of cobalt (Co) is 99.98%; the mass percentage purity of aluminum (Al) is 99.9%; the mass percentage purity of silver (Ag) is 99.9%.

[0074] Step 2: Smelting Zr 53 Al 16 Co 24.8 Ag 6.2 Master alloy

[0075] Put the raw materials weighed in step 1 into the vacuum electric arc furnace;

[0076] Adjust the vacuum degree of the vacuum chamber of the vacuum arc furnace to 3×10 -3 Pa, then filled with high purity (99.999%) argon to make the vacuum of the vacuum chamber to 0.8×10 5 Pa;

[0077] After 300s of arc smelting, the arc is broken to form the first alloy ingot;

[0078] Turn over the first alloy ingot, and after arc melting for 12...

Example Embodiment

[0091] Example 3:

[0092] Zr with a diameter of 20mm is prepared by copper mold casting 53 Al 16 Co 23.25 Ag 7.75 Bulk amorphous alloy

[0093] Step 1: Ingredients

[0094] Press Zr 53 Al 16 Co 23.25 Ag 7.75 The nominal composition of the raw material is weighed;

[0095] Among them, the mass percentage purity of zirconium (Zr) is 99.8%; the mass percentage purity of cobalt (Co) is 99.98%; the mass percentage purity of aluminum (Al) is 99.9%; the mass percentage purity of silver (Ag) is 99.9%.

[0096] Step 2: Smelting Zr 53 Al 16 Co 23.25 Ag 7.75 Master alloy

[0097] Put the raw materials weighed in step 1 into the vacuum electric arc furnace;

[0098] Adjust the vacuum degree of the vacuum chamber of the vacuum arc furnace to 4×10 -3 Pa, then filled with high purity (99.999%) argon to make the vacuum of the vacuum chamber to 0.5×10 5 Pa;

[0099] After 300s of arc smelting, the arc is broken to form the first alloy ingot;

[0100] Turn over the first alloy ingot, and after arc melting ...

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Abstract

The invention discloses a zirconium base blocky amorphous/nanocrystalline alloy with an antibacterial action and a preparation method thereof. The components of the alloy in atomic percentage are ZraAlbCocAgd, wherein a is 50%-55%, b is 15%-17.5%, c is 22.5%-30%, and d is 3%-10%. According to the blocky amorphous alloy provided by the invention, (1), the blocky amorphous alloy has an efficient antibacterial element Ag and has a favorable antibacterial or bacteriostatic function; (2), through carrying out a heat treatment on the blocky amorphous alloy at a certain temperature, the nm-grade Ag is separated out from an amorphous alloy matrix, and such an alloy with an amorphous/nanocrystalline structure has a more favorable antibacterial performance; (3), the zirconium base blocky amorphous/nanocrystalline alloy has strong amorphous formation capability, and the zirconium base amorphous alloy with a critical diameter which is not less than 8 mm can be prepared by adopting a copper die casting method; and (4), compared with a conventional biological medical alloy, the zirconium base blocky amorphous/nanocrystalline alloy has a higher yield strength, a lower modulus of elasticity and better mechanical biocompatibility. Therefore, the series of the amorphous alloys have a wide application prospect in the fields of structural materials, biological materials, medical instruments and the like.

Description

technical field [0001] The invention relates to a bulk amorphous / nanocrystalline alloy material, more specifically, a silver-containing zirconium-based bulk amorphous / nanocrystalline alloy with antibacterial effects and a preparation method thereof. Background technique [0002] Biomedical metal materials are metals or alloys used in the biomedical field. They have high mechanical strength and fatigue resistance, and are the most widely used load-bearing implant materials in clinical practice. The application of such materials is very extensive, involving various aspects such as hard tissue, soft tissue, artificial organs and surgical auxiliary equipment. The medical metal materials that have been used clinically mainly include stainless steel, cobalt-based alloys and titanium-based alloys. In addition, there are shape memory alloys, precious metals, and pure metals such as tantalum, niobium, and zirconium. The main problems in the application of medical metal materials ar...

Claims

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Application Information

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IPC IPC(8): C22C45/10A61L27/04A61L27/50
Inventor 张涛花能斌黄璐逄淑杰李然
Owner BEIHANG UNIV
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