Coppered carborundum particle reinforced Mg-based compound material

A technology for silicon carbide particles and composite materials, applied in the field of magnesium-based composite materials, can solve problems such as being unsuitable for industrial production, complex directional solidification process, etc., and achieve the effects of uniform distribution of silicon carbide particles, good interface bonding, and wide application fields.

Inactive Publication Date: 2005-09-14
NINGBO AODA COPPER PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After searching the literature of the prior art, it was found that C.Mayencourt et al published a paper "High damping composite material: Mg 2 Research on Si/Mg", which proposed the preparation of fiber-reinforced composite Mg by directional solidification process 2 Si/Mg has the same tensile streng

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] In this example, silicon carbide (SiC) particles plated with electroless copper (Cu) are used as the reinforcing phase, and magnesium is used as the matrix phase, and a special interface layer is obtained by electroless copper plating on the surface of the silicon carbide particles, so that the manufactured composite material can obtain strength. Good match with damping performance. 40 μm pure magnesium powder and 14 μm SiC particles are used as the original powder materials, and the volume percentage of SiC particles is 5%. The surface of the SiC particles is electrolessly plated with a Cu coating with a weight ratio of 30%, and the electroless copper coating is uniformly covered on the surface of the silicon carbide particles in the form of extremely fine particles. Then, after mixing, cold pressing, sintering and hot extrusion, a composite material with uniform particle distribution, dense organization and good interface bonding is obtained. The tensile strength of ...

Embodiment 2

[0015] In this example, the silicon carbide particles with electroless copper plating are used as the reinforcing phase, and magnesium is used as the matrix phase, and a special interface layer is obtained by electroless copper plating on the surface of the silicon carbide particles, so that the manufactured composite material can obtain a good match of strength and damping performance. . 40 μm pure magnesium powder and 14 μm SiC particles are used as the original powder materials, and the volume percentage of SiC particles is 10%. The surface of the SiC particles is electrolessly plated with a Cu coating with a weight ratio of 30%, and the electroless copper coating is uniformly covered on the surface of the silicon carbide particles in the form of extremely fine particles. Then, after mixing, cold pressing, sintering and hot extrusion, a composite material with uniform particle distribution, dense organization and good interface bonding is obtained. The tensile strength of ...

Embodiment 3

[0017] In this example, the electroless copper-plated silicon carbide particles are used as the reinforcing phase, and magnesium is used as the matrix phase, and a special interface layer is obtained by electroless copper plating on the surface of the silicon carbide particles, so that the manufactured composite material can obtain a good match of strength and damping performance. . 40 μm magnesium-aluminum alloy powder and 14 μm SiC particles are used as original powder materials, and the volume percentage of SiC particles is 30%. The surface of the SiC particles is electrolessly plated with a Cu coating with a weight ratio of 30%, and the electroless copper coating is uniformly covered on the surface of the silicon carbide particles in the form of extremely fine particles. Then, after mixing, cold pressing, sintering and hot extrusion, a composite material with uniform particle distribution, dense organization and good interface bonding is obtained. The tensile strength of ...

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Abstract

This invention is coppered silicon carbide particle reinforcing magnesium group composite material used in composite material technique field. Matrix is made by 70~ 95% pure magnesium powders or magnesium alloy powder and 5~30% chemical copper plate silicon carbide particles. The chemical copper plate is one layer copper coat though chemical copper on silicon carbide durface, weight percent of copper is 10~50%, silicon carbide 50~90%. New type magnesium group composite material made in this invention by controlling appropriate copper coat thickness, silicon carbide particle volume portion and powder metallurgical technology and assistant hot extrusion technique, its silicon carbide particle distributed uniformly, interface bonding is good, and it has good mechanical properties and damping capability. High intension, high damping structure and function integrated magnesium group composite material is got and it has wide application prospect.

Description

technical field [0001] The invention relates to a magnesium-based composite material used in the technical field of composite materials, in particular to a copper-plated silicon carbide particle reinforced magnesium-based composite material. Background technique [0002] The damping properties of a material play an important role in controlling the vibration and noise of a structure, thereby extending the service life of the material under cyclic loading or shock. Magnesium has the highest damping performance among all commercial metal structural materials, however its weak mechanical properties limit its wider application. Therefore, improving the mechanical strength of magnesium while maintaining its inherent high damping performance has become the core issue of many studies. [0003] The literature search of the prior art found that C.Mayencourt et al. published a paper in "Phys.Status.Solidi.A" (1997, 163:357) "High damping composite material: Mg 2 Research on Si / Mg", ...

Claims

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Application Information

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IPC IPC(8): C22C1/04C22C23/00
Inventor 张小农顾金海赵常利
Owner NINGBO AODA COPPER PRODS
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