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Conium oxide-based biological ceramic material as well as preparation method and application thereof

A bioceramic material, zirconia technology, applied in the field of bioceramic materials, can solve the problems of ceramic densification and affecting ceramic performance, and achieve the effects of excellent performance, lower sintering temperature, and simple and easy preparation method

Active Publication Date: 2019-12-06
石家庄高新区亿成科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, too low sintering temperature cannot completely lead to the densification of ceramics, and will also seriously affect the performance of ceramics.

Method used

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  • Conium oxide-based biological ceramic material as well as preparation method and application thereof

Examples

Experimental program
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preparation example Construction

[0049] A method for preparing a zirconia-based bioceramic material, comprising the steps of:

[0050] S1 ball mill mixing

[0051] Ball milling and mixing raw materials conforming to formula (I) to obtain ceramic powder;

[0052] S2 granulation pressing

[0053] Adding a binder to the ceramic powder obtained in S1 for granulation, pressing and molding to obtain a green body;

[0054] S3 cold isostatic pressing

[0055] Performing cold isostatic compaction on the green body obtained in S2 to obtain a compacted green body;

[0056] S4 plastic discharge treatment

[0057] Carry out plastic ejection processing to the compacted bisque obtained in S3;

[0058] S5 sintering

[0059] Sintering the biscuit after S4 extrusion treatment to obtain the bioceramic material.

[0060] In the present invention, unless otherwise specified, the raw materials used are commercially available products well known to those skilled in the art. Raw materials are selected from: 3mol Y 2 o 3 Do...

Embodiment 1

[0075] Zirconia-based bioceramic materials consist of:

[0076] (100-a-b-c-d-e)mol%ZrO 2 +amol%Y 2 o 3 +bmol%CaO+cmol%Al 2 o 3 +dmol%SiO 2 + emol%TiO 2 ; Wherein a, b, c, d, e are mole percentages, a=3.02, b=0.02, c=0.22, d=0.03, e=0.02.

[0077] Its preparation method specifically comprises the following steps:

[0078] S1 ball mill mixing

[0079] Carry out batching according to above-mentioned ceramic material composition, with 3mol% Y 2 o 3 Doped ZrO 2 , Y 2 o 3 , CaO, Al 2 o 3 , SiO 2 , TiO 2 Nano powder is used as the raw material, and the amount of each raw material added is calculated.

[0080] Wet ball milling method is used to mix materials, wherein the mass ratio of raw materials, grinding balls and deionized water is as follows: raw materials: grinding balls: deionized water = 1: 1.5: 0.8;

[0081] The parameters of the ball mill are as follows: zirconia grinding balls, the rotating speed is 45 revolutions per minute, and the ball milling time is...

Embodiment 2

[0094] Zirconia-based bioceramic materials consist of:

[0095] (100-a-b-c-d-e)mol%ZrO 2 +amol%Y 2 o 3 +bmol%CaO+cmol%Al 2 o 3 +dmol%SiO 2 + emol%TiO 2 ; Wherein a, b, c, d, e are mole percentages, a=3.05, b=0.03, c=0.25, d=0.03, e=0.03.

[0096] Its preparation method specifically comprises the following steps:

[0097] S1 ball mill mixing

[0098] Carry out batching according to above-mentioned ceramic material composition, with 3mol% Y 2 o 3 Doped ZrO 2 , Y 2 o 3 , CaO, Al 2 o 3 , SiO 2 , TiO 2 Nano powder is used as the raw material, and the amount of each raw material added is calculated.

[0099] Wet ball milling method is used to mix materials, wherein the mass ratio of raw materials, grinding balls and deionized water is as follows: raw materials: grinding balls: deionized water = 1: 1.5: 0.8;

[0100] The parameters of the ball mill are as follows: zirconia grinding balls, the rotating speed is 45 revolutions per minute, and the ball milling time is...

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Abstract

The invention relates to a conium oxide-based biological ceramic material as well as a preparation method and application thereof. The density of the ceramic material is 99.3-99.7%, the average crystal granule size is 112-170 nanometers, the chemical component constitution is (100-a-b-c-d-e)mol%ZrO2+amol%Y2O3+bmol%CaO+cmol%Al2O3+dmol%SiO2+emol%TiO2, in the formula, a, b, c, d and e are mole percentage contents, a is greater than or equal to 3.00 and less than or equal to 5.00, b is greater than or equal to 0.002 and less than or equal to 0.04, c is greater than or equal to 0.20 and less than or equal to 0.42, d is greater than or equal to 0.02 and less than or equal to 0.12, and e is greater than or equal to 0.002 and less than or equal to 0.035. The preparation method of the ceramic material comprises ball milling mixing, pelletizing pressing, isostatic cool pressing treatment, plastic elimination treatment and a three-section sintering step. The ceramic material has excellent mechanical properties, is good in stability under a hydrothermal condition and can be used as a tooth repairing material and a bone repairing material.

Description

technical field [0001] The invention belongs to the technical field of bioceramic materials, and in particular relates to a bioceramic material and its preparation method and application. Background technique [0002] Yttria-stabilized tetragonal zirconia polycrystalline ceramics are widely used bioceramic materials in the field of biomedicine, and are often used in human hip joint implants and ceramic-based materials for tooth restoration. This type of ceramic material has excellent mechanical properties, good wear resistance and biocompatibility. The most widely used material system is tetragonal zirconia doped with 3% yttria (Y-TZP, Y 2 o 3 -stabilized tetragonal ZrO 2 polycrystals) ceramics. The high strength and high toughness of such zirconia ceramics benefit from the stress-induced phase transformation. Specifically, gravity induces a structural phase transition from the metastable tetragonal phase to the monoclinic phase, which hinders the further propagation o...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/622
CPCC04B35/48C04B35/622C04B2235/3225C04B2235/3208C04B2235/3217C04B2235/3418C04B2235/3232C04B2235/6562C04B2235/6567C04B2235/785C04B2235/96
Inventor 刘胜军段红杰张建义
Owner 石家庄高新区亿成科技有限公司