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Preparation method of magnesium oxide doped zirconium oxide/tricalcium phosphate composite

A technology of tricalcium phosphate and composite materials, which is applied in the field of preparation of magnesia-doped zirconia/tricalcium phosphate composite materials, can solve problems such as poor mechanical properties, and achieve the effects of good mechanical properties and easy operation.

Inactive Publication Date: 2018-12-14
QIDONG CHUANGLYU GREENING ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the allotropic transformation of zirconia from tetragonal phase to monoclinic phase in the tricalcium phosphate-50% (mass fraction) zirconia composite material presents poor mechanical properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A preparation method of magnesia-doped zirconia / tricalcium phosphate composite material, comprising the following steps: mixing 25 parts of calcium carbonate and 15 parts of calcium hydrogen phosphate dihydrate, and sintering at 990° C. for 4 hours to obtain β-TCP; Parts of β-TCP powder, 15 parts of ZrO with a mass fraction of 50% 2 Mix with 30 parts of magnesium oxide, mix evenly with absolute ethanol in an agate mortar, dry at 70°C for 48 hours, add the dried material into a cylindrical mold with a diameter of 20mm and a height of 6mm for sample compression, and the compression pressure is 140MPa; put the sample in a vertical resistance furnace, heat up to 1380°C at a rate of 5°C / min and sinter for 2 hours, then cool naturally with the furnace; all raw materials are in parts by weight.

Embodiment 12

[0017] A preparation method of magnesia-doped zirconia / tricalcium phosphate composite material, comprising the following steps: mixing 20 parts of calcium carbonate and 10 parts of calcium hydrogen phosphate dihydrate, and sintering at 985° C. for 3.5 hours to obtain β-TCP; 15 parts of β-TCP powder, 10 parts of ZrO with a mass fraction of 50% 2 Mix with 25 parts of magnesium oxide, mix evenly with absolute ethanol in an agate mortar, dry at 65°C for 47 hours, add the dried material into a cylindrical mold with a diameter of 20mm and a height of 6mm for sample compression, and the compression pressure is 135MPa; put the sample in a vertical resistance furnace, heat up to 1370°C at a heating rate of 5°C / min and sinter for 1.5h, then cool naturally with the furnace; all raw materials are in parts by weight.

Embodiment 3

[0019] A preparation method of magnesia-doped zirconia / tricalcium phosphate composite material, comprising the following steps: mixing 30 parts of calcium carbonate and 20 parts of calcium hydrogen phosphate dihydrate, and sintering at 995° C. for 4.5 hours to obtain β-TCP; 25 parts of β-TCP powder, 20 parts of ZrO with a mass fraction of 50% 2 Mix it with 35 parts of magnesium oxide, mix it evenly with absolute ethanol in an agate mortar, dry it at 75°C for 49 hours, put the dried material into a cylindrical mold with a diameter of 20 mm and a height of 6 mm for sample compression, and the pressing pressure is 145MPa; put the sample in a vertical resistance furnace, heat up to 1390°C at a heating rate of 5°C / min and sinter for 2.5h, then cool naturally with the furnace; all raw materials are in parts by weight.

[0020] The method is simple, fast and easy to operate, and the prepared magnesia-doped zirconia / tricalcium phosphate composite material has good mechanical propertie...

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PUM

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Abstract

The invention discloses a preparation method of a magnesium oxide doped zirconium oxide / tricalcium phosphate composite. The preparation method comprises the following steps of mixing calcium carbonatewith dihydrated calcium hydrogen phosphate, and performing sintering at 985-995 DEG C for 3.5-4.5h so as to obtain beta-TCP; mixing beta-TCP powder with ZrO2 and magnesium oxide, performing uniform mixing with anhydrous ethanol in an agate mortar, then performing drying, adding dried materials in a cylindrical mold of which the diameter is 20mm and the height is 6mm, and performing sample compression, wherein the compressing pressure is 135-145 MPa; placing samples in a vertical resistance furnace, performing warming at the warming rate of 5 DEG C / min to 1370-1390 DEG C, performing sinteringfor 1.5-2.5h, and performing natural cooling along with the furnace. The method is simple, convenient, quick and easy to operate. The prepared magnesium oxide doped zirconium oxide / tricalcium phosphate composite has favorable mechanical properties and can be in large-scale preparation.

Description

technical field [0001] The invention relates to a preparation method of magnesium oxide doped zirconium oxide / tricalcium phosphate composite material. Background technique [0002] Bioceramics are used in biomedical applications. The production of biocompatible scaffolds is a challenge for biomedical technology. Tricalcium Phosphate (β-TCP, β-Ca 3 (PO 4 ) 2 ) has been recognized as a valuable implant material for many years. In fact, tricalcium phosphate has a good potential application in bone defect repair due to its very good human compatibility and chemical composition similar to the organic composition of bone. However, the application of β-TCP in the human body is limited due to its poor mechanical properties. Inert ceramic oxides such as zirconia (ZrO 2 ) have high tribological properties, and zirconia has received much attention because of its potential to produce nanocrystalline ceramics with controllable microstructures. Zirconia also has other intrinsic ph...

Claims

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Application Information

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IPC IPC(8): C04B35/447C04B35/622
CPCC04B35/447C04B35/622C04B2235/3206C04B2235/3244C04B2235/6562C04B2235/6567
Inventor 不公告发明人
Owner QIDONG CHUANGLYU GREENING ENG CO LTD
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