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A kind of biconnected structure titanium-magnesium composite material and its preparation method and application

A composite material and double-connection technology, applied in the field of biomedical metal materials, can solve the problems of difficult material structure regulation, complex sintering process, poor mechanical properties, etc., and achieve the effect of solving difficult tissue regulation, simple process and low cost

Active Publication Date: 2022-04-22
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] According to the above-mentioned technical problems such as complex sintering process, difficult control of material structure, low density and poor mechanical properties, a double-connected titanium-magnesium composite material and its preparation method and application are provided

Method used

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  • A kind of biconnected structure titanium-magnesium composite material and its preparation method and application
  • A kind of biconnected structure titanium-magnesium composite material and its preparation method and application
  • A kind of biconnected structure titanium-magnesium composite material and its preparation method and application

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preparation example Construction

[0040] A method for preparing a titanium-magnesium composite material with a double-connected structure, comprising the steps of:

[0041] (1) Homogenizing ball milling: Weigh titanium powder and magnesium powder of preset quality and put them into a ball mill tank, add an appropriate amount of viscous dispersant, mix titanium powder and magnesium powder evenly through ball milling, and obtain titanium-magnesium composite material powder Standby; the volume fraction of the magnesium powder is 40%-60%, and the average particle size is 100 μm; the average particle size of the titanium powder is 50-200 μm. The ball milling time is 0.5-2 hours, the rotational speed of the ball mill is 200-300 rpm, and the ball-to-material ratio is 0.5:1-2:1. The viscous dispersant is selected from isopropanol, glycerin or petrolatum and the like.

[0042] The titanium powder is selected from pure titanium powder or titanium alloy powders such as Ti-Nb and Ti-Mo that do not contain harmful alloy e...

Embodiment 1

[0047] What this embodiment prepares is that the volume fraction of magnesium is 50% biconnected structure titanium-magnesium composite material, and preparation method is carried out according to the following steps:

[0048] Weigh titanium powder and magnesium powder according to the specified ratio, a total of 4g. The magnesium powder is 1.12g, the titanium powder is 2.88g; wherein the average particle size of the titanium powder is 100 μm, and the average particle size of the magnesium powder is 100 μm, and a titanium-magnesium composite raw material powder with a magnesium volume fraction of 50% is obtained. Put the powder into a ball mill jar, then add 1% isopropanol dispersant by mass fraction, and add 4g of agate grinding balls. The titanium powder and the magnesium powder are uniformly mixed by ball milling, the ball milling time is 1 h, and the rotational speed of the ball mill is 250 rpm. The ball-milled powder was dried at room temperature for 1 h. Then put the d...

Embodiment 2

[0054] What this embodiment prepares is that the volume fraction of magnesium is 40% biconnected structure titanium-magnesium composite material, and preparation method is carried out according to the following steps:

[0055] Weigh titanium powder and magnesium powder according to the specified ratio, a total of 8g. The magnesium powder is 0.82g, and the titanium powder is 3.18g; the average particle size of the titanium powder is 200 μm, and the average particle size of the magnesium powder is 100 μm. The powder is packed into a ball mill jar, then 1% mass fraction of isopropanol dispersant is added, and 16g of agate grinding balls are added. The titanium powder and the magnesium powder were uniformly mixed by ball milling, the ball milling time was 2 hours, and the rotational speed of the ball mill was 300 rpm. The ball-milled powder was dried at room temperature for 1 h. Then put the dry and united powder into a mold, and pre-press the powder under a pressure of 300 MPa ...

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Abstract

The invention discloses a titanium-magnesium composite material with a double-connected structure and its preparation method and application, and relates to the technical field of biomedical metal material preparation. The preparation method includes the following steps: uniformly mixing titanium powder and magnesium powder by homogenizing ball milling to obtain titanium magnesium Composite material powder; drying the composite material powder and performing pre-pressing and shaping to obtain a titanium-magnesium composite material rough billet; performing high-temperature and high-pressure sintering on the composite material rough billet to obtain a double-connected structure titanium-magnesium composite material. The invention has a simple process and a short process, and adopts a high-temperature and high-pressure solid-phase sintering process, which solves the problems of microstructure regulation such as magnesium oxidation burning loss and uneven distribution, and the sintering problems of low material density and poor mechanical properties existing in the traditional powder metallurgy method. The double-connected titanium-magnesium composite material prepared by the invention is a novel biomedical composite material integrating excellent mechanical properties, biocompatibility, osteogenic inductivity and osteogenic integration, and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of biomedical metal materials, in particular to a double-connected structure titanium-magnesium composite material and its preparation method and application. Background technique [0002] Titanium and titanium alloys have been widely used in biomedicine due to their high specific strength, good biocompatibility and good corrosion resistance, and have broad development prospects. However, the elastic modulus of titanium and titanium alloys is relatively high, which is far greater than that of human bone, causing a serious "stress shielding" effect, resulting in serious consequences such as osteoporosis and implant loss. In addition, titanium is a biologically inert material with poor osteoinductivity. [0003] The elastic modulus of magnesium and magnesium alloys is 40-45GPa, which is the metal material closest to the elastic modulus of human bone. Moreover, magnesium is one of the constant elements in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/04B22F3/02B22F3/14B22F1/052B22F3/11A61L27/42A61L27/56A61L27/58
CPCB22F9/04B22F3/02B22F3/14B22F3/11A61L27/427A61L27/56A61L27/58B22F2009/043A61L2430/02B22F1/052B22F1/10
Inventor 蔡学成张鑫辛圣炜丁帅军沈同德刘永
Owner YANSHAN UNIV
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