Preparation method of graphene enhanced cobalt-based composite material
A technology of composite materials and graphene, which is applied in the field of composite materials, can solve the problems of reinforcement, failure to solve the problem of graphene dispersion, strength, wear resistance and corrosion resistance, etc., and achieve high barrier properties and excellent engineering application prospects , the effect of reducing production costs
Inactive Publication Date: 2019-01-11
北京石墨烯技术研究院有限公司
View PDF3 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although graphene is mixed with nano-cobalt powder in this patent application, its main purpose is to strengthen the copper-based composite material, and it does not solve the problem of the dispersion of graphene in the cobalt-based alloy
[0006] Therefore, a method for preparing a graphene-enhanced cobalt-based composite material is provided, in which graphene is added to a cobalt-based alloy matrix, and the high-strength characteristics of graphene are used to solve the problems of insufficient strength, wear resistance and corrosion resistance of cobalt-based alloy materials Problem is a technical problem that those skilled in the art need to solve urgently
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
preparation example Construction
[0037] A preparation method of graphene reinforced cobalt-based composite material, comprising the following steps:
[0038] S1 Put the cobalt alloy ingot or rod into the atomization powder making equipment, start the atomization powder making equipment in the nitrogen or argon atmosphere to break the cobalt alloy ingot or rod into spherical cobalt-based alloy powder, and make spherical The particle size of the cobalt-based alloy powder is 10-100 microns, and the oxygen content is below 800 ppm. Among them, the plasma rotating electrode method can also be selected to prepare spherical cobalt-based alloy powder.
[0039] Preferably, the particle size of the spherical cobalt-based alloy powder is 25-50 microns. Under this condition, the spherical cobalt-based alloy powder and graphene are more uniformly mixed, and the graphene is more uniformly dispersed in the spherical cobalt-based alloy powder.
[0040] Wherein, the alloy content in the cobalt alloy ingot or rod put into the...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| oxygen content | aaaaa | aaaaa |
| size | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a preparation method of a graphene enhanced cobalt-based composite material. The preparation method comprises the following steps that 1, cobalt alloy is crushed into sphericalcobalt-based alloy powder; 2, prepared graphene is dispersed into absolute ethyl alcohol to form a graphene absolute ethyl alcohol solution, and ultrasonic dispersion treatment is carried out after mechanical stirring; 3, the spherical cobalt-based alloy powder obtained in the step 1 is dispersed into the graphene absolute ethyl alcohol solution subjected to ultrasonic dispersion treatment in thestep 2 to form a mixed solution, and heating is carried out; 4, the mixed solution is transferred into vacuum conditions to be dried so as to obtain graphene and cobalt-based alloy mixed powder; 5, the graphene and cobalt-based alloy mixed powder obtained in the step 4 is subjected to ball milling; 6, the ball-milled powder is contained in a steel capsule and heated to 500-800 DEG C; and 7, the outer layer steel capsule is removed, and the graphene enhanced cobalt-based composite material is obtained.
Description
technical field [0001] The invention relates to the technical field of composite materials, in particular to a method for graphene-reinforced cobalt-based alloys. Background technique [0002] Cobalt-based alloy is a high-temperature wear-resistant alloy with good mechanical properties, corrosion resistance, wear resistance and high temperature oxidation resistance. It is widely used in aerospace, automotive, electronics, biology and other fields. However, the modern manufacturing industry is rapidly The development has put forward higher requirements for the strength and wear resistance of cobalt-based alloy materials. [0003] Graphene is a two-dimensional nanomaterial composed of carbon atoms. Due to its unique two-dimensional honeycomb crystal structure and extremely high bond strength, graphene is the material with the highest specific strength and the hardest known in the world. Graphite The Young's modulus of graphene is about 1100GPa, and the fracture strength is ab...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/05C22C1/10C22C19/07
CPCC22C1/05C22C19/07
Inventor 高冉曹振王旭东李炯利张海平
Owner 北京石墨烯技术研究院有限公司