CN110257663A - A kind of preparation method of graphene enhancing Cu-base composites - Google Patents
A kind of preparation method of graphene enhancing Cu-base composites Download PDFInfo
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- CN110257663A CN110257663A CN201910616238.XA CN201910616238A CN110257663A CN 110257663 A CN110257663 A CN 110257663A CN 201910616238 A CN201910616238 A CN 201910616238A CN 110257663 A CN110257663 A CN 110257663A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0084—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ carbon or graphite as the main non-metallic constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
Abstract
The present invention provides a kind of preparation method of graphene enhancing Cu-base composites, comprising the following steps: Graphene powder is broken to granularity in 200 mesh hereinafter, obtaining Graphene powder by step 1.；Copper-based composite powder is crushed to granularity in 200 mesh hereinafter, obtaining copper-based composite powder powder by step 2.；Copper-based composite powder and Graphene powder are put into ball milling 4 hours in planetary ball mill by step 3., and the quality proportioning of copper-based composite powder and Graphene powder is copper-based composite powder 60-80 parts, 20-40 parts of Graphene powder；Step 4. using pressure testing machine carry out tabletting, pressure 500MPa, pressure maintaining 3 minutes；It is sintered under step 5. vacuum condition using vacuum drying oven, after sintering, cools to room temperature with the furnace and obtain Cu-base composites.The present invention has low thermal coefficient of expansion, and the performances such as high conductivity, high thermal conductivity, material friction coefficient is small, and wear rate is small to be can be widely applied in industrial production.
Description
Technical field
The present invention relates to technical field of novel materials, specially a kind of preparation side of graphene enhancing Cu-base composites
Method.
Background technique
Copper and copper alloy satisfactory mechanical property, and processing performance is excellent, is easy to casting, plastic processing etc., it is often more important that
Copper and copper alloy have good anti-corrosion, thermally conductive, electric conductivity, so they can be widely used in electronics, machinery, machinery manufacture etc.
Industrial circle.But copper limits it more in all various deficiencies such as room temperature intensity, high-temperature behavior and polishing machine
It is widely applied.And with the fast development of modern aerospace, electronic technology, the use of copper is proposed more higher
It is required that is, on the basis of guaranteeing the good physical properties such as conductive, thermally conductive of copper, it is desirable that copper have it is high-intensitive, it is especially good
Good mechanical behavior under high temperature, and material is required to have low thermal expansion coefficient and good friction and wear behavior.First, China
It about 20,000,000,000 dollars of the gross investment of high-speed railway Jing-Hu Railway, has put into operation within 2008, nearly ten thousand tons of contact line annual requirement, has shown
The research and development of right contact line, the i.e. research and development of high-strength highly-conductive wear-resistant copper alloy functional material have very big domestic and international market.
Summary of the invention
Technical problem solved by the invention is to provide a kind of preparation method of graphene enhancing Cu-base composites,
To solve the problems mentioned in the above background technology.
Technical problem solved by the invention is realized using following technical scheme: a kind of graphene enhancing is copper-based compound
The preparation method of material, comprising the following steps:
Graphene powder is broken to granularity in 200 mesh hereinafter, obtaining Graphene powder by step 1.；
Copper-based composite powder is crushed to granularity in 200 mesh hereinafter, obtaining copper-based composite powder powder by step 2.；
Copper-based composite powder and Graphene powder are put into ball milling 4 hours in planetary ball mill by step 3., copper-based composite powder with
The quality proportioning of Graphene powder is copper-based composite powder 60-80 parts, 20-40 parts of Graphene powder；
Step 4. using pressure testing machine carry out tabletting, pressure 500MPa, pressure maintaining 3 minutes；
Be sintered under step 5. vacuum condition using vacuum drying oven, after sintering, cool to the furnace room temperature obtain it is copper-based
Composite material.
Ball milling is carried out when the planetary ball mill ball milling under the atmosphere of sub- nitrogen, Material quality of grinding balls is stainless steel, ratio of grinding media to material
Example is 8:1, revolving speed 200r*min-1。
The copper-based composite powder include nickel, cobalt, manganese, molybdenum, silicon, copper, lanthanum cerium alloy 5-10, selenium-tellurium alloy, wolframic acid zirconium powder,
Barium strontium titanate powder, quality proportioning be nickel 7-25 parts, 1-12 parts of cobalt, manganese 8-20,1-5 parts of molybdenum, 1-5 parts of silicon, 80-100 parts of copper,
5-10 parts of lanthanum cerium alloy, 5-10 parts of selenium-tellurium alloy, 1-5 parts of wolframic acid zirconium powder, 1-5 parts of barium strontium titanate powder.
It is 10 that the vacuum drying oven sintering parameter, which is vacuum degree,-2~10-1Pa, heating rate are 50~150 DEG C/min, sintering
Temperature is 850~1000 DEG C, and pressure is 20~35MPa, 5~10min of soaking time.
Compared with prior art, the beneficial effects of the present invention are: the present invention has low thermal coefficient of expansion, high conductivity, height
The performances such as thermally conductive, material friction coefficient is small, and wear rate is small to be can be widely applied in industrial production.
Specific embodiment
In order to make implement technical means of the invention, creation characteristic, reach purpose and effect is easy to understand, into one
Step illustrates the present invention, in the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " company ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can connection inside two elements.
Embodiment 1
A kind of preparation method of graphene enhancing Cu-base composites, comprising the following steps:
Graphene powder is broken to granularity in 200 mesh hereinafter, obtaining Graphene powder by step 1.；
Copper-based composite powder is crushed to granularity in 200 mesh hereinafter, obtaining copper-based composite powder powder by step 2.；It is described copper-based multiple
Conjunction its quality proportioning of powder be 7 parts of nickel, 1 part of cobalt, manganese 8,1 part of molybdenum, 1 part of silicon, 80 parts of copper, 5 parts of lanthanum cerium alloy, 5 parts of selenium-tellurium alloy,
1 part of wolframic acid zirconium powder, 1 part of barium strontium titanate powder；
Copper-based composite powder and Graphene powder are put into ball milling 4 hours in planetary ball mill by step 3., copper-based composite powder with
The quality proportioning of Graphene powder is copper-based composite powder 60-80 parts, 20-40 parts of Graphene powder；Sub- nitrogen when planetary ball mill ball milling
Ball milling is carried out under the atmosphere of gas, Material quality of grinding balls is stainless steel, and ratio of grinding media to material example is 8:1, revolving speed 200r*min-1；
Step 4. using pressure testing machine carry out tabletting, pressure 500MPa, pressure maintaining 3 minutes；
Be sintered under step 5. vacuum condition using vacuum drying oven, after sintering, cool to the furnace room temperature obtain it is copper-based
Composite material；It is 10 that the vacuum drying oven sintering parameter, which is vacuum degree,-2~10-1Pa, heating rate are 50~150 DEG C/min, are burnt
Junction temperature is 850~1000 DEG C, and pressure is 20~35MPa, 5~10min of soaking time.
Embodiment 2
A kind of preparation method of graphene enhancing Cu-base composites, comprising the following steps:
Graphene powder is broken to granularity in 200 mesh hereinafter, obtaining Graphene powder by step 1.；
Copper-based composite powder is crushed to granularity in 200 mesh hereinafter, obtaining copper-based composite powder powder by step 2.；It is described copper-based multiple
Conjunction its quality proportioning of powder is 20 parts of nickel, 8 parts of cobalt, manganese 10,3 parts of molybdenum, 3 parts of silicon, 90 parts of copper, 8 parts of lanthanum cerium alloy, selenium-tellurium alloy 8
Part, 3 parts of wolframic acid zirconium powder, 35 parts of barium strontium titanate powder；
Copper-based composite powder and Graphene powder are put into ball milling 4 hours in planetary ball mill by step 3., copper-based composite powder with
The quality proportioning of Graphene powder is copper-based composite powder 60-80 parts, 20-40 parts of Graphene powder；Sub- nitrogen when planetary ball mill ball milling
Ball milling is carried out under the atmosphere of gas, Material quality of grinding balls is stainless steel, and ratio of grinding media to material example is 8:1, revolving speed 200r*min-1；
Step 4. using pressure testing machine carry out tabletting, pressure 500MPa, pressure maintaining 3 minutes；
Be sintered under step 5. vacuum condition using vacuum drying oven, after sintering, cool to the furnace room temperature obtain it is copper-based
Composite material；It is 10 that the vacuum drying oven sintering parameter, which is vacuum degree,-2~10-1Pa, heating rate are 50~150 DEG C/min, are burnt
Junction temperature is 850~1000 DEG C, and pressure is 20~35MPa, 5~10min of soaking time.
Embodiment 3
A kind of preparation method of graphene enhancing Cu-base composites, comprising the following steps:
Graphene powder is broken to granularity in 200 mesh hereinafter, obtaining Graphene powder by step 1.；
Copper-based composite powder is crushed to granularity in 200 mesh hereinafter, obtaining copper-based composite powder powder by step 2.；It is described copper-based multiple
Conjunction its quality proportioning of powder is 25 parts of nickel, 12 parts of cobalt, manganese 20,5 parts of molybdenum, 5 parts of silicon, 100 parts of copper, 10 parts of lanthanum cerium alloy, selenium-tellurium alloy
10 parts, 5 parts of wolframic acid zirconium powder, 5 parts of barium strontium titanate powder；
Copper-based composite powder and Graphene powder are put into ball milling 4 hours in planetary ball mill by step 3., copper-based composite powder with
The quality proportioning of Graphene powder is copper-based composite powder 60-80 parts, 20-40 parts of Graphene powder；Sub- nitrogen when planetary ball mill ball milling
Ball milling is carried out under the atmosphere of gas, Material quality of grinding balls is stainless steel, and ratio of grinding media to material example is 8:1, revolving speed 200r*min-1；
Step 4. using pressure testing machine carry out tabletting, pressure 500MPa, pressure maintaining 3 minutes；
Be sintered under step 5. vacuum condition using vacuum drying oven, after sintering, cool to the furnace room temperature obtain it is copper-based
Composite material；It is 10 that the vacuum drying oven sintering parameter, which is vacuum degree,-2~10-1Pa, heating rate are 50~150 DEG C/min, sintering
Temperature is 850~1000 DEG C, and pressure is 20~35MPa, 5~10min of soaking time.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, this
A little changes and improvements all fall within the protetion scope of the claimed invention.Claimed range of the invention is wanted by appended right
Ask book and its equivalent thereof.
Claims (4)
1. a kind of preparation method of graphene enhancing Cu-base composites, it is characterised in that: the following steps are included:
Graphene powder is broken to granularity in 200 mesh hereinafter, obtaining Graphene powder by step 1.；
Copper-based composite powder is crushed to granularity in 200 mesh hereinafter, obtaining copper-based composite powder powder by step 2.；
Copper-based composite powder and Graphene powder are put into ball milling 4 hours in planetary ball mill, copper-based composite powder and graphite by step 3.
The quality proportioning of alkene powder is copper-based composite powder 60-80 parts, 20-40 parts of Graphene powder；
Step 4. using pressure testing machine carry out tabletting, pressure 500MPa, pressure maintaining 3 minutes；
Be sintered under step 5. vacuum condition using vacuum drying oven, after sintering, cool to the furnace room temperature obtain it is copper-based compound
Material.
2. a kind of preparation method of graphene enhancing Cu-base composites according to claim 1, it is characterised in that: described
Ball milling is carried out when planetary ball mill ball milling under the atmosphere of sub- nitrogen, Material quality of grinding balls is stainless steel, and ratio of grinding media to material example is 8:1, revolving speed
For 200r*min-1。
3. a kind of preparation method of graphene enhancing Cu-base composites according to claim 1, it is characterised in that: described
Copper-based composite powder includes nickel, cobalt, manganese, molybdenum, silicon, copper, lanthanum cerium alloy 5-10, selenium-tellurium alloy, wolframic acid zirconium powder, barium strontium titanate powder,
Quality proportioning be nickel 7-25 parts, 1-12 parts of cobalt, manganese 8-20,1-5 parts of molybdenum, 1-5 parts of silicon, 80-100 parts of copper, 5-10 parts of lanthanum cerium alloy,
5-10 parts of selenium-tellurium alloy, 1-5 parts of wolframic acid zirconium powder, 1-5 parts of barium strontium titanate powder.
4. a kind of preparation method of graphene enhancing Cu-base composites according to claim 1, it is characterised in that: described
Vacuum drying oven sintering parameter is that vacuum degree is 10-2~10-1Pa, heating rate be 50~150 DEG C/min, sintering temperature be 850~
1000 DEG C, pressure is 20~35MPa, 5~10min of soaking time.
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Cited By (4)
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| CN112063873A (en) * | 2020-09-19 | 2020-12-11 | 广西大学 | Graphene reinforced copper-based composite material and warm-pressing forming preparation method thereof |
| CN114480910A (en) * | 2022-01-27 | 2022-05-13 | 北京科技大学 | Workable copper-based composite material with zero expansion and high thermal conductivity at wide temperature zone at room temperature and preparation method thereof |
| CN114853476A (en) * | 2022-04-21 | 2022-08-05 | 哈尔滨工业大学 | Ultrahigh-performance carbon-based material based on inorganic substance and preparation method thereof |
| CN117265314A (en) * | 2023-10-16 | 2023-12-22 | 靖江市海源有色金属材料有限公司 | Graphene reinforced copper-based composite electrical contact material and preparation method thereof |
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