Preparation method of multihole zinc magnesium alloy/hydroxyapatite composite material

A hydroxyapatite and composite material technology, which is applied in the field of preparation of porous zinc-magnesium alloy/hydroxyapatite composite material, can solve the problems of poor stability, difficult control of pore structure, complicated process, etc. The preparation process is clean and pollution-free, and the effect of advanced technology

Active Publication Date: 2018-03-30
TAIYUAN UNIV OF TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the methods for preparing porous biocomposites include vacuum infiltration casting method, powder metallurgy method, a

Method used

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Example Embodiment

[0066] The present invention will be further explained below in conjunction with the drawings:

[0067] figure 1 Shown is the spark plasma sintering state diagram of porous ZnMg / HA composite material. The position and connection relationship of each part should be correct, and the operation should be performed in order according to the proportion.

[0068] The amount of chemical substances used in preparation is determined according to the preset range, in grams, milliliters, centimeters 3 It is the unit of measurement.

[0069] The sintering of the porous ZnMg / HA composite material is carried out in the spark plasma sintering furnace, which is completed in the process of argon protection and spark plasma heating;

[0070] The spark plasma sintering furnace is vertical, including the vacuum sintering furnace 1. The lower part of the vacuum sintering furnace 1 is the base 3, the upper part is the top base 2, and the interior is the furnace cavity 39; the upper part of the base 3 is pro

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Abstract

The invention relates to a preparation method of a multihole zinc magnesium alloy/hydroxyapatite composite material. In view of the shortcomings of low mechanical property of multihole elemental zincand low biological activity in an in-vivo degradation process, hydroxyapatite, magnesium and zinc are used as raw materials, and a sodium chloride crystal is used as a pore forming agent, so that a multihole zinc magnesium alloy/hydroxyapatite composite material block body is prepared through powder blending, ball grinding powder mixing, discharge plasma sintering and removal of the pore forming agent. The preparation method is advanced in process, and data are precise, full and accurate; and the prepared multihole zinc magnesium alloy/hydroxyapatite composite material block body has a densitybeing 2.94 g/cm<3>, the porosity being 53 percent, an aperture being less than or equal to 450 micrometers, the yield strength being 60 MPa and the elastic modulus being 4 GPa, so that the multiholezinc magnesium alloy/hydroxyapatite composite material accords with human skeleton performance parameters and can meet a use requirement of a clinically medical orthopedic implant, and the preparing method is an advanced preparation method for the multihole ZnMg/HA composite material.

Description

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Claims

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Application Information

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Owner TAIYUAN UNIV OF TECH
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