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Hard-tissue bio-medical in-situ synthesized zirconium matrix composite material and preparation method thereof

A technique of tissue biology and in situ self-generation, applied in medical science, prosthesis, etc., can solve problems such as unfavorable bone healing and long-term stability of implants, insufficient matching of elastic modulus, stress shielding effect, etc., and achieve good biocompatibility properties, enhanced corrosion resistance, and increased strength

Active Publication Date: 2013-06-26
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the development of medical technology, the shortcomings of titanium alloys in biomedical applications have gradually emerged. One of them is that the elastic modulus does not match that of natural bones, which is likely to cause stress shielding effects, which is not conducive to bone Healing and long-term stability of the implant, which is prone to damage to the human body

Method used

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  • Hard-tissue bio-medical in-situ synthesized zirconium matrix composite material and preparation method thereof
  • Hard-tissue bio-medical in-situ synthesized zirconium matrix composite material and preparation method thereof
  • Hard-tissue bio-medical in-situ synthesized zirconium matrix composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. Raw material formula: raw material components and weight percentages are: sponge zirconium 96.00%, copper 4.00%, niobium 0.1%; the purity of sponge zirconium, copper and niobium are all above 99%.

[0034] 2. Preparation method

[0035] (1) Weighing of raw materials, respectively weighing zirconium sponge, copper, and niobium according to the weight percentage of each raw material component; the particle size of raw materials is controlled below 2 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 to wash; vacuumize and wash repeatedly for 2 to 4 times. Finally, smelting is carried out under the protection of inert gas, the smelting temperature is 2800-3000°C; the smelting voltage is 220V, th...

Embodiment 2

[0043] 1. Raw material formula: raw material components and weight percentages are: sponge zirconium 95.70%, copper 4.00%, niobium 0.30%; the purity of sponge zirconium, copper and niobium are all above 99%.

[0044] 2. Preparation method

[0045] (1) Weighing of raw materials, respectively weighing zirconium sponge, copper and niobium according to the weight percentage of each raw material component; the particle size of raw materials is controlled below 2 cm;

[0046] (2) Mix the raw materials, mix the weighed raw materials evenly by stirring and mixing;

[0047] (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 to wash; vacuumize and wash repeatedly for 2 to 4 times. Finally, smelting is carried out under the protection of inert gas, the smelting temperature is 2800-2900°C; the smelting voltage is 220V, th...

Embodiment 3

[0053] 1. Raw material formula: raw material components and weight percentages are: zirconium sponge 95.40%, copper 4.00%; niobium 0.60%, and the purity of zirconium sponge, copper and niobium are all above 99%.

[0054] 2. Preparation method

[0055] (1) Weighing of raw materials, respectively weighing zirconium sponge, copper and niobium according to the weight percentage of each raw material component; the particle size of raw materials is controlled below 2 cm;

[0056] (2) Mix the raw materials, mix the weighed raw materials evenly by stirring and mixing;

[0057] (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 to wash; vacuumize and wash repeatedly for 2 to 4 times. Finally, melting is carried out under the protection of inert gas, the melting temperature is 2850-2950 °C; the melting voltage is 220 V,...

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Abstract

The invention discloses a hard-tissue bio-medical in-situ synthesized zirconium matrix composite material and a preparation method thereof. The hard-tissue bio-medical in-situ synthesized zirconium matrix composite material comprises the following components by weight percent: 3.5-4.5 percent of copper, 0.1-1.20 percent of niobium and the balance of zirconium sponge. According to the preparation method, the raw materials are weighed according to the weight percents of the components, mixed fully, then smelted by using a non-consumable vacuum arc smelting furnace, and cooled to obtain metal ingots with a homogeneous microstructure. The hard-tissue bio-medical in-situ synthesized zirconium matrix composite material has the advantages of traditional medical titanium alloy, and simultaneously solves the problem that the young's modulus of the traditional medical titanium alloy does not match with the natural bones of the human body as well as the problem of damage to human bodies caused by the mismatching mechanical performance of substitute materials; according to the hard-tissue bio-medical in-situ synthesized zirconium matrix composite material and the preparation method thereof, zirconium matrix is strengthened by using in-situ synthesized Zr3Cu as the reinforcing phase and niobium as the alloying element, the compression strength of the zirconium matrix composite material is effectively improved, and meanwhile the compression strength, the plasticity, the young's modulus and the like of the zirconium matrix composite material are changed by adjusting the content of niobium.

Description

technical field [0001] The invention belongs to the technical field of metal-based composite materials, and in particular relates to a biomedical in-situ self-generated zirconium-based alloy material 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...

Claims

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Application Information

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IPC IPC(8): C22C16/00C22C1/02A61L27/04
Inventor 湛永钟聂礼
Owner GUANGXI UNIV
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