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Method for preparing titanium-iron particle reinforced hydroxyapatite-based bioceramic material

A bioceramic material, hydroxyapatite technology, applied in the field of materials, can solve the problem of high cost, achieve the effects of low cost, improved flexural strength, and easy industrial production

Inactive Publication Date: 2012-01-04
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the study found that the toughness of pure HA ceramics can be improved by introducing metal titanium (Ti) or its alloys, the sintering process such as hot pressing can only be used to make products with simple shapes, and the cost is high

Method used

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  • Method for preparing titanium-iron particle reinforced hydroxyapatite-based bioceramic material
  • Method for preparing titanium-iron particle reinforced hydroxyapatite-based bioceramic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Mix titanium powder and iron powder with a particle size of 300~500 mesh, the titanium powder accounts for 50% of the total weight of all materials, and then use absolute ethanol as the medium to mix and grind until the particle size of all materials is 1~5μm. into composite powder;

[0029] Mix the composite powder with HA powder with a particle size of 80~200mm to make a mixed powder. The composite powder accounts for 5% of the total weight of the mixed powder, and then the mixed powder is mixed evenly with anhydrous ethanol as a medium; Dry at 5°C to remove ethanol to obtain HA / Ti-Fe powder;

[0030] The HA / Ti-Fe powder was formed by cold isostatic pressing under the condition of 200MPa, and the holding time was 5 minutes to make a green body;

[0031] The green body was placed in a vacuum muffle furnace and sintered under the condition of a vacuum degree of 10-50Pa, the sintering temperature was 900°C, and the holding time was 300min to obtain a hydroxyapatite-base...

Embodiment 2

[0034] Mix titanium powder and iron powder with a particle size of 300~500 mesh, titanium powder accounts for 60% of the total weight of all materials, and then use absolute ethanol as the medium to mix and grind until the particle size of all materials is 1~5μm. into composite powder;

[0035] Mix the composite powder with HA powder with a particle size of 80~200mm to make a mixed powder. The composite powder accounts for 10% of the total weight of the mixed powder, and then the mixed powder is mixed evenly with anhydrous ethanol as a medium; Dry at 5°C to remove ethanol to obtain HA / Ti-Fe powder;

[0036] The HA / Ti-Fe powder was formed by cold isostatic pressing under the condition of 200MPa, and the holding time was 5 minutes to make a green body;

[0037] The green body is placed in a vacuum muffle furnace and sintered under the condition of a vacuum degree of 10-50Pa, the sintering temperature is 1000°C, and the sintering time is 200min to obtain a hydroxyapatite-based b...

Embodiment 3

[0040] Mix titanium powder and iron powder with a particle size of 300-500 mesh, titanium powder accounts for 70% of the total weight of all materials, and then use absolute ethanol as a medium to mix and grind until the particle size of all materials is 1-5 μm. into composite powder;

[0041] Mix the composite powder with HA powder with a particle size of 80~200mm to make a mixed powder. The composite powder accounts for 15% of the total weight of the mixed powder, and then the mixed powder is mixed evenly with anhydrous ethanol as a medium; Dry at 5°C to remove ethanol to obtain HA / Ti-Fe powder;

[0042] Put the HA / Ti-Fe powder into the mold and perform unidirectional compression molding under the condition of 200MPa to make a biscuit;

[0043] The green body is placed in a vacuum muffle furnace and sintered under the condition of a vacuum degree of 10-50Pa, the sintering temperature is 1100°C, and the sintering time is 100min to obtain ferro-titanium particle-reinforced hy...

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Abstract

The invention discloses a method for preparing a titanium-iron particle reinforced hydroxyapatite-based bioceramic material and belongs to the technical field of materials. The method comprises the following steps: mixing titanium powder and iron powder, mixing and finely grinding by ball milling and obtaining composite powder; mixing the composite powder with hyaluronic acid (HA) powder to obtain mixed powder, uniformly mixing by ball milling in absolute ethanol serving as a medium, drying under a condition of a temperature of 80+ / -5 DEG C to remove ethanol and obtaining HA / Ti-Fe powder; and subjecting HA / Ti-Fe powder to unidirectional press forming or cold isostatic press forming, sintering under vacuum conditions and obtaining the titanium-iron particle reinforced hydroxyapatite-based bioceramic material. The method disclosed by the invention is simple in process and low in cost, and can realize industrial production easily; and the prepared bioceramic material has excellent mechanical performance and biological performance.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a method for preparing a hydroxyapatite-based bioceramic material reinforced by ferro-titanium particles. Background technique [0002] Hydroxyapatite (HA) has excellent biocompatibility, bioactivity, and osteoconductivity, so hydroxyapatite plays an increasingly important role in the repair, replacement and improvement of the function of biological hard tissues . However, due to the high brittleness of hydroxyapatite, it cannot meet the requirements of the body for its mechanical properties. The metal material titanium (Ti) is currently the most widely used in clinical applications due to its excellent mechanical properties and biological properties. Therefore, the preparation of composite materials by combining the good biocompatibility of HA and the good mechanical properties of Ti has attracted the attention of researchers at home and abroad. . At present, th...

Claims

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Application Information

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IPC IPC(8): C04B35/74C04B35/447
Inventor 茹红强常青王伟岳新艳
Owner NORTHEASTERN UNIV
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