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A kind of SIC continuous fiber containing al/cu double coating and its preparation method and application

A continuous fiber, double-coating technology, applied in coating, metal material coating process, vacuum evaporation plating, etc., to achieve good uniformity, avoid severe interface reaction, and improve the effect of interface bonding

Active Publication Date: 2019-05-10
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Through patent retrieval, it is found that the research on SiC ceramic phase-reinforced aluminum-matrix composite materials is mostly focused on the development of SiC particle-reinforced aluminum-matrix composite materials. Fiber-reinforced aluminum matrix composites have not been reported

Method used

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  • A kind of SIC continuous fiber containing al/cu double coating and its preparation method and application
  • A kind of SIC continuous fiber containing al/cu double coating and its preparation method and application
  • A kind of SIC continuous fiber containing al/cu double coating and its preparation method and application

Examples

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Embodiment 1

[0036] Example 1 is a SiC continuous fiber-reinforced Al-based composite material containing Al / Cu double coating, the fiber is coated by magnetron sputtering, the working temperature is 270°C, the sputtering gas is Ar, and the working pressure is 0.3Pa. The Al target sputtering power is 950W, the deposition time is 100min, the coating thickness is about 500nm, the Cu target sputtering power is 900W, the deposition time is 10min, the coating thickness is about 50nm, the total deposition time is 120min, and the total coating thickness is 550nm about. The number of prefabricated fiber layers is 10, and then the SiC continuous fiber-reinforced Al-based composite material is prepared by vacuum pressure impregnation method. The tensile strength is 476.60MPa.

Embodiment 2

[0038] Example 2 is a SiC continuous fiber-reinforced Al-based composite material containing Al / Cu double coating, the fiber is coated by magnetron sputtering, the working temperature is 270°C, the sputtering gas is Ar, and the working pressure is 0.3Pa. Al target sputtering power is 950W, deposition time is 160min, coating thickness is about 800nm, Cu target sputtering power is 900W, deposition time is 20min, coating thickness is about 100nm, total deposition time is 180min, total coating thickness is 900nm about. The number of prefabricated fiber layers is 10, and then the SiC continuous fiber-reinforced Al-based composite material is prepared by vacuum pressure impregnation method. The tensile strength is 482.89MPa.

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Abstract

The invention discloses an Al / Cu dual coating contained SiC continuous filament and a preparation method and application thereof. The Al / Cu dual coating contained SiC continuous filament is composed of a SiC continuous filament body and aluminum copper composite dual coatings on the surface of the SiC continuous filament body, and the aluminum copper composite dual coatings are formed by an aluminum bottom layer and a copper surface layer. The preparation method includes the steps that the SiC continuous filament body is placed into an air environment for heat treatment, the aluminum bottom layer and the copper surface layer are sequentially deposited on the surface of the SiC continuous filament body in a magnetron sputtering method, and then the SiC continuous filament containing the compact and even aluminum copper composite coatings is obtained. When the Al / Cu dual coating contained SiC continuous filament is applied to preparation of a SiC continuous filament reinforced Al base composite material, the stability of an interface between the SiC continuous filament and a metal base material and the wettability of a molten aluminum base on the SiC continuous filament can be effectively improved, and the SiC continuous filament reinforced Al base composite material which is compact in texture and good in mechanical property can be obtained.

Description

technical field [0001] The invention relates to a surface-modified SiC continuous fiber material, in particular to a SiC continuous fiber containing Al / Cu double coatings, and a method for preparing Al / Cu double coatings on SiC continuous fiber materials by magnetron sputtering , and the application of SiC continuous fibers containing Al / Cu double coatings in reinforcing Al-based composite materials, which belong to the technical field of aluminum-based composite material preparation. Background technique [0002] Due to the high specific strength, specific stiffness, excellent fatigue resistance, high temperature resistance and dimensional stability, continuous fiber reinforced aluminum matrix composites have great application potential in aerospace, automobile, weapon, electronics and other fields. The currently used reinforcing fibers mainly include carbon fiber, boron fiber, silicon carbide fiber and alumina fiber. Among them, boron fibers have the characteristics of hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/35C23C14/18C23C14/16C22C47/04C22C47/06C22C47/08C22C49/06C22C49/14C22C101/14C22C121/02
CPCC22C47/04C22C47/06C22C47/08C22C49/06C22C49/14C23C14/165C23C14/185C23C14/35
Inventor 岳建岭朱文华黄小忠杜作娟
Owner CENT SOUTH UNIV
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