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Zirconia biological ceramic and preparation method thereof

A bioceramic, zirconia technology, applied in the field of biomaterials

Inactive Publication Date: 2015-03-25
SUZHOU VIVOTIDE BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen from this that the colored porcelain blocks provided by this technical solution have higher density, are relatively flat and stable, and have certain compression resistance, but wear resistance and fracture toughness are poor, so it is not an ideal zirconia bioceramic material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A zirconia bioceramic, comprising the following components in parts by mass:

[0025] 60 parts of zirconia, 2 parts of nano titanium oxide, 3 parts of nano β-alumina, 0.2 parts of lanthanum trichloride, 3 parts of seaweed fiber.

[0026] Prepare zirconia bioceramics according to the preparation method provided by the present invention, the steps are as follows:

[0027] (1) Weighing: Accurately weigh each component;

[0028] (2) Ball milling: Mix the components together and put them into a ball mill for grinding and mixing;

[0029] (3) Cold press forming: the mixed powder is pressed with a 60T press;

[0030] (4) Put the formed powder into the mold and perform high-temperature calcination at a temperature of 1150°C and a pressure of 600MPa for 4 hours;

[0031] (5) After calcination, it is cooled and taken out to obtain bulk zirconia bioceramics.

[0032] The obtained blocky zirconia bioceramic was crushed to an average particle size of 0.3mm, and the performance o...

Embodiment 2

[0034] A zirconia bioceramic, comprising the following components in parts by mass:

[0035] 80 parts of zirconia, 6 parts of nano-titanium oxide, 7 parts of nano-beta-alumina, 0.5 parts of lanthanum trichloride, and 8 parts of seaweed fiber.

[0036] Prepare zirconia bioceramics according to the preparation method provided by the present invention, the steps are as follows:

[0037] (1) Weighing: Accurately weigh each component;

[0038] (2) Ball milling: Mix the components together and put them into a ball mill for grinding and mixing;

[0039] (3) Cold press forming: the mixed powder is pressed with a 60T press;

[0040] (4) Put the formed powder into the mold and perform high-temperature calcination at a temperature of 1250°C and a pressure of 460MPa for 5 hours;

[0041] (5) After calcination, it is cooled and taken out to obtain bulk zirconia bioceramics.

[0042] The obtained blocky zirconia bioceramic was crushed to an average particle size of 0.3mm, and the proper...

Embodiment 3

[0044] A zirconia bioceramic, comprising the following components in parts by mass:

[0045] 71 parts of zirconia, 3 parts of nano titanium oxide, 4 parts of nano β-alumina, 0.4 parts of ytterbium trichloride, and 5 parts of seaweed fiber.

[0046] Prepare zirconia bioceramics according to the preparation method provided by the present invention, the steps are as follows:

[0047] (1) Weighing: Accurately weigh each component;

[0048] (2) Ball milling: Mix the components together and put them into a ball mill for grinding and mixing;

[0049] (3) Cold press forming: the mixed powder is pressed with a 60T press;

[0050] (4) Put the formed powder into the mold and perform high-temperature calcination at a temperature of 1240°C and a pressure of 525MPa for 4 hours;

[0051] (5) After calcination, it is cooled and taken out to obtain bulk zirconia bioceramics.

[0052] The obtained blocky zirconia bioceramic was crushed to an average particle size of 0.3mm, and the propertie...

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Abstract

The invention discloses zirconia biological ceramic and a preparation method thereof, relating to the field of biological materials. The average particle size of the ceramic is 0.2-0.5mm, and the ceramic comprises the following components in parts by weight: 60-80 parts of zirconia, 2-6 parts of nanometer titania, 3-7 parts of nanometer aluminum oxide, 0.2-0.5 part of rare-earth chloride and 3-8 parts of alginate fibers. The method for preparing the zirconia biological ceramic comprises the following preparation steps: (1) weighing; (2) performing ball milling; (3) performing cold press molding; (4) performing high-temperature and high-pressure calcining; and (5) cooling and taking out the ceramic. The zirconia biological ceramic provided by the invention has the characteristics of good wear-resisting property, high toughness and high biocompatibility and can serve as general medical implants or substitute materials of oral teeth.

Description

technical field [0001] The invention belongs to the field of biological materials, in particular to a zirconia bioceramic and a preparation method of the bioceramic. Background technique [0002] With the development of material science and technology, biomaterials have become one of the important research directions in the field of biomedicine because of their special properties of repairing, replacing and regenerating body tissues. Biological hard tissue substitute materials were first used body bones and animal bones, and later developed to use stainless steel and plastics. Due to the problems of dissolution, corrosion and fatigue of stainless steel, plastics have problems of poor stability and low strength. Therefore, the bottleneck in the development of biomaterials is caused. The emergence of bioceramics has improved the shortage of existing alternative materials. Because of its many advantages, bioceramics has broad development prospects. [0003] Zirconia bioceramic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/488C04B35/49C04B35/622
Inventor 殷飞刘大学李永超
Owner SUZHOU VIVOTIDE BIOTECH
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