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Magnesium-based composite material containing silicon carbon particles and preparation method of magnesium-based composite material

A technology of silicon carbide particles and composite materials, which is applied in the field of composite materials, can solve the problems of low tensile strength and yield strength and limit the application of magnesium-based composite materials, and achieve enhanced tensile strength and yield strength, good toughness, and improved The effect of volume fraction

Inactive Publication Date: 2015-12-02
SUZHOU NETABHAPE COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Composite materials using magnesium as a matrix have the above advantages, but the tensile strength and yield strength of magnesium-based composite materials in the prior art are not high, which limits the application of magnesium-based composite materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Magnetic composite materials containing the following mass content of the following mass content: components containing the following quality percentage content: 18%of iron oxide red, 18%oxidation 铪, 2%carbonate 铈, 4%oxidation 镧 4%, 8%iron oxide, 4%of zinc oxide, 5%graphite powder, 3.5%silicon carbide, and the rest are magnesium powder.

[0019] The granularity of graphite powder is 50 μm.

[0020] The proportion of silicon carbide is 3.22, and the microscopic hardness is 3000kg / mm 2 Essence

[0021] The preparation method of the above -mentioned magnesium -based composite materials containing silicon carbide particles includes the following steps:

[0022] (1) Mix the iron oxide red, oxide, carbonate, oxide, iron oxide, zinc oxide, graphite powder, silicon carbide, and magnesium powder, then pass through the 200 mesh sieve specified by GB6003, and then mix with 3.5h;

[0023] (2) Suppress molding under the pressure of 750MPa;

[0024] (3) sintering, sintering temperature i...

Embodiment 2

[0027] Magnetic composite materials with silicon carbide particles contain the following percentage of mass content: 15%oxide red, 10%oxidation, 1%carbonate, 1%oxide, 5%iron oxide, zinc oxide 1%, 4%of graphite powder, silicon carbide, and the rest are magnesium powder.

[0028] The granularity of graphite powder is 30 μm.

[0029] The proportion of silicon carbide is 3.22, and the microscopic hardness is 3000kg / mm 2 Essence

[0030] The preparation method of the above -mentioned magnesium -based composite materials containing silicon carbide particles includes the following steps:

[0031] (1) After mixing iron oxide red, oxide, carbonate, oxide, iron oxide, zinc oxide, graphite powder, silicon carbide, and magnesium powder, pass the 200 mesh sieve specified by GB6003, and then mix for 3H;

[0032] (2) Suppress molding under the pressure of 700MPa;

[0033] (3) sintering, sintering temperature is 800 ° C, sintering pressure is 2MPa, and the insulation time is 30min.

[0034] (4) C...

Embodiment 3

[0036] Magnetic composite materials with silicon carbide particles contain the following percentage components of quality: 20%of iron oxide red, 20%oxidation cricket, 3%carbonate, 5%oxide, 10%iron oxide, zinc oxide 5%, 6%of graphite powder, silicon carbide, and the rest are magnesium powder.

[0037] The granularity of graphite powder is 100 μm.

[0038] The proportion of silicon carbide is 3.22, and the microscopic hardness is 3000kg / mm 2 Essence

[0039] The preparation method of the above -mentioned magnesium -based composite materials containing silicon carbide particles includes the following steps:

[0040] (1) After mixing iron oxide red, oxide, carbonate, oxide, iron oxide, zinc oxide, graphite powder, silicon carbide, and magnesium powder, pass the 200 mesh sieve specified by GB6003, and then mix for 4h;

[0041] (2) Suppress molding under the pressure of 800MPa;

[0042] (3) sintering, sintering temperature is 900 ° C, sintering pressure is 3MPa, and the insulation time ...

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Abstract

The invention discloses a magnesium-based composite material containing silicon carbon particles and a preparation method of the magnesium-based composite material. The composite material comprises, by mass, 15-20% of iron oxide red, 10-20% of hafnium oxide, 1-3% of cerous carbonate, 1-5% of lanthanum oxide, 5-10% of ferric oxide, 1-5% of zinc oxide, 4-6% of graphite powder, 4-5% of silicon carbide and the balance magnesium powder. The preparation method comprises the steps that the iron oxide red, hafnium oxide, cerous carbonate, lanthanum oxide, ferric oxide, zinc oxide, graphite powder, silicon carbide and magnesium powder are mixed uniformly and screened through a 200-mesh sieve stipulated in the GB6003, and then dry blending is conducted for 3-4 h; the mixture is subjected to compression moulding under the pressure of 700-800 MPa; sintering is conducted, the sintering temperature is 800-900 DEG C, the sintering pressure is 2-3 MPa, and the heat preservation time is 30-40 min; cooling is conducted. The plasticity of the composite material is 8.9-9.1%, the tensile strength is 260-266 MPa, and the yield strength is 180-182 MPa; the volume fraction of amorphous phases in the composite material can be substantially increased by adding the silicon carbide, the tensile strength and yield strength are increased, and the tenacity is good.

Description

Technical field [0001] The invention is a composite material field, especially a magnesium -based composite material and its preparation method of silicon -containing particles. Background technique [0002] Magnesium is a silver -white light -alkaline soil metal. It is lively in chemical properties and can generate hydrogen in response to acidic reactions. It has certain ductility and heat dissipation.Compared with plastic, magnesium alloys have light weight, high strength, good vibration reduction, good thermal fatigue performance, difficulty in aging, and good thermal conductivity, strong electromagnetic shielding ability, and very good die -casting process performance, especially easy to recycleThe advantages are a new generation of high -performance structural materials replacing steel, aluminum alloy and engineering plastics.In order to adapt to the development trend of highly integrated and light and small, electronics and communication devices, magnesium alloys are the id...

Claims

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Application Information

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IPC IPC(8): C22C23/00C22C32/00C22C29/12C22C30/00C22C1/05
Inventor 刘莉王爽邱晶刘晓东黄明明
Owner SUZHOU NETABHAPE COMPOSITE MATERIALS
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