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A kind of sic fiber reinforced refractory alloy composite material and its preparation method and application

A technology of refractory alloys and composite materials, applied in metal material coating technology, vacuum evaporation plating, coating, etc., can solve problems that affect the mechanical properties of refractory alloys, high temperature, etc.

Active Publication Date: 2022-08-05
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, SiC fibers and refractory alloys require high temperature during hot isostatic pressing, which will produce severe interfacial reactions, which greatly affects the mechanical properties of SiC fiber reinforced refractory alloys.

Method used

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  • A kind of sic fiber reinforced refractory alloy composite material and its preparation method and application
  • A kind of sic fiber reinforced refractory alloy composite material and its preparation method and application
  • A kind of sic fiber reinforced refractory alloy composite material and its preparation method and application

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preparation example Construction

[0041] The present invention also provides a preparation method for SIC fiber enhancement of difficult melting alloy composite materials, including the following steps:

[0042] (1) Under the condition of pillar, the transition metal is used as the target, and the magnetic sputter is performed on the continuous SIC fiber surface with C coating to obtain the metal layer;

[0043] (2) Under the condition of nitrogen-mixed gas, the transition metal is used as the target, and the metal layer surface is used for magnetic control sputtering to obtain the metal nitride layer;

[0044] (3) Repeat the steps of the Magnetic Splane Metal Layer and Magnetic Splane Preparation Metal Nitrogen Moric layer in turn.

[0045] (4) Under the condition of pillar, the difficult melting metal is used as the target, and the magnetic sputtering of the multi -layer diffusion barrier coating surface is used to obtain the SIC fiber enhancement of the difficult melting alloy composite material.

[0046] Under...

Embodiment 1

[0056] Fix the continuous SIC fiber with C coating to the rectangular sample rack, keep the fiber spacing 0.2mm, and put it in a sample room for multi -target magnetic sputtering equipment; Place in multi -target magnetic sputtering equipment and keep the distance between each target distance of 10cm. figure 1 Show, figure 1 Drama diagram for magnetic control sputtering equipment.

[0057] Pumping vacuum to the back of the back of the back is lower than 8 × 10 -4 PA, passing into the air, keep the pressure 0.1Pa, partial pressure -500V, and clean the continuous SIC fiber sputter with C coating for 20 minutes.

[0058] Adjust the amount of pyrine to make the amount of pyrethon input of 60SCCM, combined with the gate valve to make the work pressure 0.8Pa, adjust the partial pressure to -100V, adjust the TI target sinking current to 2A, the sedimentary ratio is 20nm / min, the sedimentation ratio is 20nm / min. The deposition time is 30 minutes. Turn into nitrogen, adjust the proportion ...

Embodiment 2

[0061] Fix the continuous SIC fiber with C coating to the rectangular sample rack, keep the fiber spacing 0.2mm, and put it in a sample room for multi -target magnetic sputtering equipment; Place in multi -target magnetic sputtering equipment, and keep the distance between each target distance of 10cm.

[0062] Pumping vacuum to the back of the back of the back is lower than 8 × 10 -4 PA, passing the pillar, keeping the pressure 0.1Pa, a partial pressure -500V, a current of 0.5A, and the continuous SIC fiber sputter with C coating for 20 minutes.

[0063] Adjusting the amount of pyrine to make the amount of pyrethrum to 60SCCM, combined with the gate valve to make the work pressure 0.8Pa. Adjust the bias to -100V, adjust the TI target sinking current to 2A, the sedimentary rate of the TI target is 20nm / min, and the deposition time is 30 minutes. Turn into nitrogen, adjust the proportion of nitrogen / pyrine 30:60, combine with the gate valve to adjust the pressure of 0.8Pa, the sedi...

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Abstract

The invention belongs to the technical field of metal matrix composite materials, and in particular relates to a SiC fiber reinforced refractory alloy composite material and a preparation method and application thereof. The invention adopts magnetron sputtering technology to deposit multi-layer diffusion barrier coating and refractory alloy layer on the surface of continuous SiC fiber with C coating. The diffusion between the alloy matrices optimizes the interface bonding strength, effectively hinders the occurrence of the interface diffusion reaction, and improves the mechanical properties and high temperature resistance of the composite material. The obtained SiC fiber reinforced refractory alloy composite material can be used in high temperature resistant materials middle. In addition, the preparation method provided by the invention has the advantages of simple process, good controllability, high production efficiency and low preparation cost, ensuring that the thickness of the single layer of the diffusion barrier coating can be adjusted and the period can be adjusted, and can realize the preparation of high-performance metal matrix composite materials.

Description

Technical field [0001] The present invention is a technical field of metal -based composite materials, which involves a SIC fiber enhancement of difficult melting alloy composite materials and their preparation methods and applications. Background technique [0002] With the development of aerospace technology, aviation aircraft requirements for structural parts are increasingly required. Generally, not only the materials have excellent mechanical properties, but also require good high temperature resistance. Traditional difficulty melting metals and its alloys, due to its unique performance such as high melting points, high hardness, and high strength, are widely used in high temperature environments, but their high temperature intensity is poor and cannot meet the needs of aircraft aircraft structures. [0003] The use of SIC fiber enhanced difficulty melting alloy composite materials to enhance high temperature alloy performance is a widely used method. This method introduces ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/35C23C14/18C23C14/06C23C14/02C23C14/54
CPCC23C14/352C23C14/185C23C14/0036C23C14/022C23C14/54C23C14/0641
Inventor 郑伟涛王麒骅文懋张侃
Owner JILIN UNIV