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Zirconium-aluminum-carbon ceramic particle-reinforced copper matrix composite material and preparation method thereof

A copper-based composite material, zirconium-aluminum-carbon ceramic technology, applied in the field of ceramic particle reinforced metal-based composite materials, can solve the problems of low strength, hardness and wear resistance of pure copper, limit wide application, reduce electrical conductivity, etc., and achieve excellent Electrical properties, wide application prospects, low cost effect

Inactive Publication Date: 2010-09-08
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low strength, hardness and wear resistance of pure copper, its wide application is limited.
Alloying can improve the mechanical properties of copper-based materials, however, the large addition of alloying elements will significantly reduce its electrical conductivity
Document 1: Pawlek et al. in the German Journal of Metals (Zeitschrift für Metallkunde.47, 347 (1956)) discussed the effect of the addition of different alloying elements on the conductivity of metallic copper, among which the commonly used elements such as silicon, chromium and iron significantly reduced Conductivity of copper

Method used

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  • Zirconium-aluminum-carbon ceramic particle-reinforced copper matrix composite material and preparation method thereof
  • Zirconium-aluminum-carbon ceramic particle-reinforced copper matrix composite material and preparation method thereof
  • Zirconium-aluminum-carbon ceramic particle-reinforced copper matrix composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] First, use zirconium-aluminum carbon ceramics as raw materials, use planetary ball milling method for 12 hours, and the ball mill speed is 300 rpm to obtain powder with an average particle size of 2-5 microns; then, the obtained average particle size is 2-5 microns. 5 micron zirconium aluminum carbon ceramics (Zr 2 Al 3 C 4 ) powder 4.14 grams, copper powder 129.49 grams ball milled in the ball mill pot for 10 hours, then put into the graphite mold and cold press molding, the applied pressure is 10MPa, and the cold pressing time is 5-10 minutes; Pressing and sintering, the heating rate is 20°C / min, heated to 900°C and kept for 1.5 hours, while the pressure is gradually increased to 35MPa. The whole sintering process was carried out under the protection of argon. The obtained reaction products were analyzed by X-ray diffraction as copper and zirconium aluminum carbon ceramics (Zr 2 Al 3 C 4 ) two-phase, zirconium aluminum carbon ceramics (Zr 2 Al 3 C 4 ) uniform...

Embodiment 2

[0021] First, using zirconium-aluminum carbon ceramics as raw materials, using planetary ball milling method for ball milling for 18 hours, the ball mill speed is 200 rpm, to obtain powder with an average particle size of 2-5 microns; then, the obtained powder with an average particle size of 2 Zirconium aluminum carbon ceramics (Zr 2 Al 3 C 4 13.23 grams of powder and 113.54 grams of copper powder were ball milled in a ball mill jar for 15 hours, and then put into a graphite mold and cold-pressed for molding. The applied pressure was 15 MPa, and the cold-pressing time was 10 minutes; then, put them into a hot-press furnace for hot-press sintering , the heating rate is 10°C / min, heated to 800°C and kept for 2 hours, while the pressure is gradually increased to 30MPa. The whole sintering process was carried out under the protection of argon. The obtained reaction products were analyzed by X-ray diffraction as copper and zirconium aluminum carbon ceramics (Zr 2 Al 3 C 4 ) ...

Embodiment 3

[0023] First, using zirconium-aluminum carbon ceramics as raw materials, using planetary ball milling method for ball milling for 16 hours, the ball mill speed is 270 rpm, to obtain powder with an average particle size of 2-5 microns; then, the obtained powder with an average particle size of 2 Zirconium aluminum carbon ceramics (Zr 2 Al 3 C 4 ) powder 7.48 g, copper powder 125.52 g ball milled in a ball mill jar for 10 hours, then put into a graphite mold for cold pressing molding, the applied pressure was 20 MPa, and the cold pressing time was 10 minutes; then, put it into a hot pressing furnace for hot pressing and sintering , the heating rate is 10°C / min, heated to 850°C and kept for 1 hour, while the pressure is gradually increased to 30MPa. The whole sintering process was carried out under the protection of argon. The obtained reaction products were analyzed by X-ray diffraction as copper and zirconium aluminum carbon ceramics (Zr 2 Al 3 C 4 ) two-phase, zirconium ...

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Abstract

The invention relates to the field of ceramic particle-reinforced metal matrix composite materials, in particular to a powder metallurgy method for preparing a zirconium-aluminum-carbon ceramic particle-reinforced copper matrix composite material with high conductivity and high wear resistance. Zirconium-aluminum-carbon ceramic particles distributed in a copper matrix are used to prepare the composite material comprising a series of components, wherein the zirconium-aluminum-carbon ceramic content is between 5 and 15 volume percent. The method comprises the following steps of: firstly, milling zirconium-aluminum-carbon ceramic serving as a raw material by using a planetary ball milling method to obtain powder with average particle size of 2 to 5 microns; secondly, mixing the obtained zirconium-aluminum-carbon ceramic powder and copper powder in a predetermined ratio; thirdly, performing further ball milling on the mixed powder by using the planetary ball milling method and filling the mixed powder into a graphite mold for cold press molding; finally, sintering the mixed powder in a hot-pressing furnace in the protective atmosphere. Therefore, the zirconium-aluminum-carbon ceramic-reinforced copper matrix composite material with high conductivity and high wear resistance can be prepared by a simple preparation process.

Description

technical field [0001] The invention relates to the field of ceramic particle-reinforced metal-matrix composite materials, in particular to a powder metallurgy method for preparing zirconium-aluminum carbon (Zr 2 Al 3 C 4 ) Method for strengthening copper matrix composites with ceramic particles. Background technique [0002] Copper-based materials have excellent electrical and thermal conductivity, good friction properties and low cost, so they are used in many fields such as aerospace, aviation, navigation, electronics and magnetism, such as electrical contacts, brushes, active cooling components, Electronic components, electrodes, friction materials under low speed and heavy load conditions, etc. However, due to the low strength, hardness and wear resistance of pure copper, its wide application is limited. Alloying can improve the mechanical properties of copper-based materials, but the addition of a large amount of alloying elements will significantly reduce its elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C32/00C22C1/04
Inventor 周延春张洁何灵峰
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI