Biotic bone composite material and preparing method thereof

A composite material and biological technology, applied in the field of materials, can solve problems such as deformation and cracking, and achieve high corrosion resistance, good wear resistance and corrosion resistance, and high wear resistance

Active Publication Date: 2016-01-20
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem of deformation and cracking existing in the preparation of Co-Cr-based composite bio-bone materials by laser direct deposition molding (3D printing), the present invention provides a bio-bone composite material and a preparation method thereof

Method used

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  • Biotic bone composite material and preparing method thereof
  • Biotic bone composite material and preparing method thereof
  • Biotic bone composite material and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0049] A bio-bone composite material consisting of CoCrMo alloy powder, CeO 2 Alloy powder and ZrO 2 Alloy powder composite; wherein, by mass percentage, CoCrMo alloy powder: CeO 2 Alloy powder: ZrO 2 Alloy powder = 98:1:1, see Table 1; CoCrMo powder particle size range 100-200 mesh, CeO 2 Powder particle size range 0.5 ~ 1μm, ZrO 2 The powder particle size ranges from 30 to 80nm, and the three powders are spherical in shape; medical CoCrMo alloy powder is used, and the chemical composition is as follows: w (Cr) = 26%, w (Mo) = 6%, w (W) =5%, w(Si)=1%, w(Fe)=1%, w(C)=0.04%, and the balance is Co.

[0050] Table 1 Composition (wt.%) of bio-bone composite material

[0051]

[0052] The preparation method of biological bone composite material of the present invention is specifically as follows:

[0053] Step 1, mixing of composite powder:

[0054] (1) Mix 2.5g of cetyltrimethylammonium bromide with ethylene glycol solution and place in a 500mL beaker, mechanically stir ...

Embodiment 2

[0085] A bio-bone composite material consisting of CoCrMo alloy powder, CeO 2 Alloy powder and ZrO 2 Alloy powder composite; wherein, by mass percentage, CoCrMo alloy powder: CeO 2 Alloy powder: ZrO 2 Alloy powder = 97:1:2, see Table 1; CoCrMo powder particle size range 100-200 mesh, CeO 2 Powder particle size range 0.5 ~ 1μm, ZrO 2 The powder particle size ranges from 30 to 80nm, and the three powders are spherical in shape; medical CoCrMo alloy powder is used, and the chemical composition is as follows: w (Cr) = 25%, w (Mo) = 5%, w (W) =4%, w(Si)=0.5%, w(Fe)=0.8%, w(C)=0.02%, and the balance is Co.

[0086] The preparation method of biological bone composite material of the present invention is specifically as follows:

[0087] Step 1, mixing of composite powder:

[0088] (1) After mixing 2.5g of cetyltrimethylammonium bromide and ethylene glycol solution, place it in a 500mL beaker, stir mechanically at a speed of 300 rpm, and stir for 20min to form a mixed solution; ...

Embodiment 3

[0098] A bio-bone composite material consisting of CoCrMo alloy powder, CeO 2 Alloy powder and ZrO 2 Alloy powder composite; wherein, by mass percentage, CoCrMo alloy powder: CeO 2 Alloy powder: ZrO 2 Alloy powder = 96:1:3, see Table 1; CoCrMo powder particle size range 100-200 mesh, CeO 2 Powder particle size range 0.5 ~ 1μm, ZrO 2 The powder particle size ranges from 30 to 80nm, and the three powders are spherical in shape; medical CoCrMo alloy powder is used, and the chemical composition is as follows: w (Cr) = 27%, w (Mo) = 7%, w (W) =6%, w(Si)=1.2%, w(Fe)=1.2%, w(C)=0.05%, and the balance is Co.

[0099] The preparation method of biological bone composite material of the present invention is specifically as follows:

[0100] Step 1, mixing of composite powder:

[0101] (1) After mixing 5g of cetyltrimethylammonium bromide and ethylene glycol solution, place it in a 500mL beaker, stir it mechanically at a speed of 500 rpm, and stir for 15min to form a mixed solution;...

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Abstract

The invention discloses a biotic bone composite material and a preparing method thereof and belongs to the technical field of materials. The composite material is formed by combining CoCrMo alloy powder, CeO2 alloy powder and ZrO2 alloy powder and comprises, by mass, 92-98% of CoCrMo alloy powder, 1-3% of CeO2 alloy powder and 1-5% of ZrO2 alloy powder. The particle size range of the CoCrMo powder is 100-200 meshes, the particle size range of the CeO2 powder is 0.5-1 microns, and the particle size range of the ZrO2 powder is 30-80 nm, wherein the three kinds of powder are in spherical shapes. The preparing method includes the steps that firstly, the composite powder is mixed; secondly, a base material which is directly deposited and formed with lasers is pretreated; and thirdly, the technological method for direct depositing and forming with lasers is adopted, a laser 3D printer is adopted, inert gas shielding is conducted, and a laser device conducts continuous scanning for n layers and returns to the position of XY plane origin coordinates. The composite material has good toughness, wear resistance and corrosion resistance, rigidity reaches 619 HV, the tensile strength reaches 686 MPa, the biotic bone composite material is soaked in manual simulation saliva for 7 days, and the concentration of the Cr ion is 0.11 mg/L. The composite material is applied to preparing of artificial bone false teeth.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a bio-bone composite material and a preparation method thereof. Background technique [0002] With the gradual improvement of people's living standards and the rapid development of modern science and technology, people's attention to the quality of life in modern life and the health of the human body is also increasing year by year. For diseases, natural disasters, sudden accidents, natural aging, etc. Tooth loss or fractures caused by various factors occur frequently. Under the premise of being non-toxic and harmless and ensuring good biocompatibility, dentures made of different materials with excellent mechanical properties such as good wear resistance, high corrosion resistance, and sufficient hardness, which are prepared and put into clinical application, are the world's leading dentures. One of the research hotspots in this field. Since Co-Cr-based alloys hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/07C22C32/00B22F1/00B22F3/105B33Y10/00
CPCY02P10/25
Inventor 陈岁元王力刘常升梁京
Owner NORTHEASTERN UNIV
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