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Beta-type Zr-Nb-Si biomedical alloy and preparation method thereof

A zr-nb-si biomedical technology, applied in the field of zirconium-based biomedical alloys and its preparation, can solve the problems of long-term stability of unfavorable bone healing implants, insufficient matching of elastic modulus, and easy damage to the human body, etc., to achieve Good development and application prospects, low production cost, good biocompatibility effect

Active Publication Date: 2016-05-18
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of medical technology, the shortcomings of titanium alloys in biomedical applications have gradually become prominent. One of them is that the elastic modulus does not match the elastic modulus of natural bone, which is likely to cause stress shielding effects and lead to implant failure. Bone resorption occurs around the implant, causing loosening or fracture of the implant, which is not conducive to bone healing and long-term stability of the implant, and is easy to cause damage to the human body

Method used

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  • Beta-type Zr-Nb-Si biomedical alloy and preparation method thereof
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  • Beta-type Zr-Nb-Si biomedical alloy and preparation method thereof

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Embodiment 1

[0033] 1. Raw material formula: raw material components and weight percentages are: sponge zirconium 81.07%, niobium 18.46%, silicon 0.47%; the purity of sponge zirconium, niobium and silicon are all above 99%.

[0034] 2. Preparation method

[0035] (1) Weighing of raw materials, respectively weighing zirconium sponge, niobium and silicon according to the weight percentage of each raw material component; the particle size of raw materials is controlled below 3 cm;

[0036] (2) Mix the raw materials, mix the weighed raw materials evenly by stirring and mixing;

[0037](3) Raw material smelting, put the uniformly mixed raw material into the crucible in the non-consumable vacuum electric arc furnace, and then vacuumize, the vacuum degree is 1×10 -2 ~1×10 -3 Pa; then pass in argon gas for washing; vacuumize and wash repeatedly for 3 times. Finally, melting is carried out under the protection of argon, the melting temperature is 2900-3000°C; the melting voltage is 220V, the mel...

Embodiment 2

[0042] 1. Raw material formula: raw material components and weight percentages are: sponge zirconium 80.85%, niobium 18.53%; silicon 0.62%; the purity of sponge zirconium, niobium and silicon are all above 99%.

[0043] 2. Preparation method

[0044] (1) Weighing of raw materials, respectively weighing zirconium sponge, niobium and silicon according to the weight percentage of each raw material component; the particle size of raw materials is controlled below 3 cm;

[0045] (2) Mix the raw materials, mix the weighed raw materials evenly by stirring and mixing;

[0046] (3) Raw material smelting, put the uniformly mixed raw material into the crucible in the non-consumable vacuum electric arc furnace, and then vacuumize, the vacuum degree is 1×10 -2 ~1×10 -3 Pa; then pass in argon gas for scrubbing; vacuumize and scrub for 2 times. Finally, under the protection of argon, the melting temperature is 2900-3000°C; the melting voltage is 220V, the melting current is controlled at ...

Embodiment 3

[0051] 1. Raw material formula: raw material components and weight percentages are: sponge zirconium 80.63%, niobium 18.59%, silicon 0.78%; the purity of sponge zirconium, niobium and silicon are all above 99%.

[0052] 2. Preparation method

[0053] (1) Weighing of raw materials, respectively weighing zirconium sponge, niobium and silicon according to the weight percentage of each raw material component; the particle size of raw materials is controlled below 3 cm;

[0054] (2) Mix the raw materials, mix the weighed raw materials evenly by stirring and mixing;

[0055] (3) Raw material smelting, put the uniformly mixed raw material into the crucible in the non-consumable vacuum electric arc furnace, and then vacuumize, the vacuum degree is 1×10 -2 ~1×10 -3 Pa; then pass in argon gas for washing; vacuumize and wash repeatedly for 3 times. Finally, under the protection of argon, the melting temperature is 3000-3100°C; the melting voltage is 220V, the melting current is contro...

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Abstract

The invention discloses beta-type Zr-Nb-Si biomedical alloy and a preparation method thereof. The beta-type Zr-Nb-Si biomedical alloy is prepared from, by weight, 18.46-18.79% of niobium, 0.47-1.10% of silicon and the balance sponge zirconium. The preparation method includes the steps that firstly, the corresponding raw materials are weighed according to the weight percentage of the components, the raw materials are fully mixed, then smelting is conducted by means of a nonconsumable vacuum arc furnace, and then an alloy ingot uniform in structure is obtained after cooling. The biomedical titanium alloy has advantages of traditional medical alloy and also solves the problem that the Young's modulus of the traditional medical alloy is not matched with natural bones of human bodies, and it is hopeful to solve the problem that due to mechanical property mismatching, substitute materials injure the human bodies.

Description

technical field [0001] The invention belongs to the technical field of metal-based composite materials, and in particular relates to a zirconium-based biomedical alloy and a preparation method thereof. Background technique [0002] Biomedical materials include materials that can be medically implanted into organisms or combined with organism tissues. Biomaterials are used to treat or replace original tissues and organs in organisms, and to correct and improve their functions. At present, biomedical metal materials are widely used as surgical implant materials, with high strength, good toughness, bending fatigue resistance and good processing and forming properties, and have excellent properties that other types of medical materials are difficult to replace. As biomedical materials, metal materials must meet strict biological requirements: (1) good tissue compatibility, non-toxicity, no distortion, no allergic reaction, no interference with the immunity of the matrix, no dama...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C16/00C22C1/02C22F1/18
CPCC22C1/02C22C16/00C22F1/186
Inventor 湛永钟柳帅吴俊彦郭付达叶海梅张晓娴张建峰黄金芳
Owner GUANGXI UNIV
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