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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 to reduce the probability of bacterial infection, a ZrAl-Co-Ag bulk amorphous alloy is provided. Contains 3% to 10% high-efficiency antibacterial Ag elements, which can effectively inhibit the growth of Staphylococcus aureus

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

Embodiment 1

[0048] Zr with a diameter of 8 mm was 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 weighs raw materials;

[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] The raw material weighed in step 1 is put into a vacuum electric arc furnace;

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

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

[0056] Flip the first alloy ingot, and after arc melt...

Embodiment 2

[0070] Zr with a diameter of 16 mm was 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 weighs raw materials;

[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] The raw material weighed in step 1 is put into a vacuum electric arc furnace;

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

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

[0078] Flip the first alloy ingot, after arc melting...

Embodiment 3

[0092] Zr with a diameter of 20 mm was 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 weighs raw materials;

[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] The raw material weighed in step 1 is put into a vacuum electric arc furnace;

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

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

[0100] Flip the first alloy ingot, and after a...

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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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