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Fibre reinforced intermetallic compound composite material as well as preparation and forming method thereof

A technology of intermetallic compounds and composite materials, which is applied in the field of continuous fiber-reinforced intermetallic compound composite materials and their preparation and molding. Low cost, continuous effect

Inactive Publication Date: 2008-07-23
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a fiber-reinforced intermetallic compound composite material and its preparation and molding method in order to solve the problems of complex preparation equipment, high process cost, and difficulty in forming complex shapes in the current fiber-reinforced intermetallic compound composite material method.

Method used

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  • Fibre reinforced intermetallic compound composite material as well as preparation and forming method thereof
  • Fibre reinforced intermetallic compound composite material as well as preparation and forming method thereof

Examples

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specific Embodiment approach 1

[0018] Embodiment 1: In this embodiment, the fiber-reinforced intermetallic compound composite material is composed of a titanium-aluminum intermetallic compound and a fiber reinforcement; wherein the fiber reinforcement accounts for 10% to 60% of the volume of the composite material; the titanium-aluminum intermetallic compound is Ti 3 Al, TiAl, TiAl 3 One or a mixture of several of them, it is produced by the in-situ reaction of aluminum or aluminum alloy high-temperature solution and titanium powder, the atomic ratio of titanium and aluminum is 3-1 / 3:1; the fiber reinforcement is graphite long fiber, silicon carbide long fiber, alumina long fiber, graphite short fiber, silicon carbide short fiber, alumina short fiber, graphite fiber fabric, silicon carbide fiber fabric or alumina fiber fabric.

specific Embodiment approach 2

[0019] Embodiment 2: This embodiment differs from Embodiment 1 in that the fiber reinforcement accounts for 20% of the volume of the composite material. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0020] Embodiment 3: This embodiment is different from Embodiment 1 in that the fiber reinforcement accounts for 30% of the volume of the composite material. Others are the same as in the first embodiment.

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Abstract

The invention relates to a fiber reinforced intermetallic compound material and the preparation and forming method, in particular to a continuous fiber reinforced intermetallic compound composite material and the preparation and forming method, which overcomes the defects of complex processing equipment, high cost, high content of impurities of the fiber reinforced intermetallic compound composite materials in the prior art, and solves the problem that the long fiber reinforced intermetallic compound composite materials can only be made into sheet, disc and other products with simple shape and can not be used for practical application. The composite material comprises fiber reinforcer and titanium-aluminium intermetallic compound matrix, the method is as follows: design and processing of forming dies; preparation of titanium powder sizing agent; preparation of pre-impregnated fiber; preparation of prefabricated members; infiltration reaction of aluminum and aluminum alloy; uniformization treatment of casting blanks. The fiber reinforced intermetallic compound material has the advantages of simple preparation process, simple equipment, low cost, less content of impurities, less damage to fiber, ability to keep continuity and integration of design, manufacture and forming.

Description

technical field [0001] The invention relates to a continuous fiber reinforced intermetallic compound composite material and a preparation method thereof. Background technique [0002] The light weight and ultra-high speed of high-thrust-to-weight ratio engines and high-speed aircraft require their structural parts to have better high-temperature performance (high-temperature strength, creep) and anti-oxidation and corrosion resistance. At the same time, they also require low density to reduce their own weight. , to increase the effective thrust-to-weight ratio of the engine. At present, the service temperature of nickel-based superalloys produced by traditional methods is close to their service limit temperature, and their high specific gravity can no longer meet the requirements of modern technology. Ti-Al intermetallic compounds have excellent oxidation resistance and corrosion resistance, relatively low density and high melting point, and are one of the high-temperature ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C49/02C22C49/06C22C49/11C22C47/10C22C47/08C22C101/00
Inventor 武高辉刘艳梅苟华松张强姜国庆
Owner HARBIN INST OF TECH
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