CN107299298A - A kind of preparation method of short carbon fiber/carbon/carbon-copper composite material - Google Patents
A kind of preparation method of short carbon fiber/carbon/carbon-copper composite material Download PDFInfo
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- CN107299298A CN107299298A CN201710477019.9A CN201710477019A CN107299298A CN 107299298 A CN107299298 A CN 107299298A CN 201710477019 A CN201710477019 A CN 201710477019A CN 107299298 A CN107299298 A CN 107299298A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/14—Making alloys containing metallic or non-metallic fibres or filaments by powder metallurgy, i.e. by processing mixtures of metal powder and fibres or filaments
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
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Abstract
The present invention relates to a kind of preparation method of fiber/carbon/carbon-copper composite material, particularly a kind of preparation method of 1mm short carbon fiber reinforceds Cu matrix composites.Its preparation method is：After well mixed copper source, titanium source and short carbon fiber are well mixed, using discharge plasma sintering, short carbon fiber/carbon/carbon-copper composite material is obtained；Sintering parameter is 790 DEG C~880 DEG C of temperature, and 10~30min of soaking time, sintering pressure is 5~25MPa；Copper is zeroth order in copper source；Titanium is zeroth order in the titanium source.Present invention preparation cost is low, energy consumption is low, products obtained therefrom function admirable.
Description
Technical field
The present invention relates to a kind of preparation method of fiber/carbon/carbon-copper composite material, particularly a kind of 1mm short carbon fiber reinforceds Cu bases
The preparation method of composite material.
Background technology
Copper has excellent conduction, thermal conductivity, but the intensity of fine copper is relatively low.And carbon fiber has high specific modulus, ratio
Intensity and good self lubricity.Properties of Cu/Short Carbon Fibers Composites shows good conduction, thermal conductivity, excellent
The series of advantages such as mechanical property, wearability, heat-resisting quantity, arc ablation resistance and good self lubricity, now as one
Plant metal-base composites and be widely used in the fields such as machine-building, Aero-Space.
, can be by controlling carbon fiber species, content and being distributed different to obtain because this kind of material designability is good
Performance indications.Not only electric conductivity and thermal conductivity are close with fine copper for C/Cu composites, and with good anti electric arc corrosion and
The advantages of antiwear property, materials of electronic components, sliding material, contact material, cooling integrated plate have been widely used in it
And the field such as wear resistant appliance, it is a kind of new material with wide application prospect.Compared with long fibre, short carbon fiber/copper is multiple
Condensation material has shaping simple in manufacture, Element Design flexibly, the advantages of suitable for industrialized production.
Current most people is mixed using mechanical ball mill causes fiber is received to damage larger, and is held with the mode of electric stirring
Easy agglomerate, is difficult to disperse；In addition electroless copper or titanium process are carried out to fiber, produces more discarded chemical agent, pollute environment；
Traditional hot pressed sintering is higher to temperature requirement, and the time cycle is long.
For directly adding a small amount of Ti powder wetting C/Cu interfaces, then prepared using plasma discharging low temperature Fast Sintering short
Carbon fiber/Cu-base composites, this mode has not been reported in available data.
The content of the invention
It is an object of the invention to overcome the deficiency of prior art, with safe and efficient mode can homogeneous mixture of material,
And Fast Sintering, energy consumption are low, the preparation method of short carbon fiber/carbon/carbon-copper composite material of products obtained therefrom function admirable.
A kind of preparation method of short carbon fiber/carbon/carbon-copper composite material of the present invention, its scheme is：By well mixed copper source, titanium
After source and short carbon fiber are well mixed, using discharge plasma sintering, short carbon fiber/carbon/carbon-copper composite material is obtained；Sintering parameter is
790~880 DEG C of temperature, be preferably 830~860 DEG C, more preferably 845~860 DEG C, still more preferably be 850 DEG C, protect
Warm 10~30min of time, sintering pressure is 5~25MPa；Copper is zeroth order in copper source；Titanium is zeroth order in the titanium source.
A kind of preparation method of short carbon fiber/carbon/carbon-copper composite material of the present invention, copper source is copper powder and/or copper-titanium alloy
Powder；The titanium source is titanium valve and/or copper-titanium alloy powder.
A kind of preparation method of short carbon fiber/carbon/carbon-copper composite material of the present invention, the length of the short carbon fiber is less than or equal to
1mm。
A kind of preparation method of short carbon fiber/carbon/carbon-copper composite material of the present invention, a diameter of 6-10 μm of the short carbon fiber, excellent
Elect 6.5~7.5 μm, more preferably 7 μm as.
Preferably, a kind of preparation method of short carbon fiber/carbon/carbon-copper composite material of the invention, comprises the steps：
Step one
Long carbon fiber is cut into after short carbon fiber, high-temperature vacuum furnace is put into, at 1000~1200 DEG C, 0~2h is incubated；With stove
Room temperature is cooled to, standby short carbon fiber is obtained；
Step 2
It will under vacuum be dried with Cu/Ti powder made from wet ball grinding, and obtain standby Cu/Ti powder；It is described standby
With in Cu/Ti powder, Cu and Ti mass ratio are 90~80:10~20；By design component by standby Cu/Ti powder with it is standby
Short carbon fiber is mixed in V-type agitator；Obtain short carbon fiber and the well mixed composite granule of metal dust；It is described compound
Cu, Ti, the mass ratio of short carbon fiber are Cu in powder：Ti：Short carbon fiber=43.2~49.5:10.8~9:1.5~6；
Step 3
Composite granule obtained by step 2 is loaded into mould, using discharge plasma sintering, short carbon fiber/composite copper material is obtained
Material；Sintering parameter is 790 DEG C~880 DEG C of temperature, is preferably 830~860 DEG C, is more preferably 845~860 DEG C, more enters one
Step is preferably 850 DEG C, 10~30min of soaking time, and sintering pressure is 5~25MPa.
Preferably, a kind of preparation method of short carbon fiber/carbon/carbon-copper composite material of the invention, short carbon described in step one
A diameter of 7 μm of fiber, length be 1mm.The density of long carbon fiber used is 1.76g/cm3。
Preferably, in the preparation method of a kind of short carbon fiber/carbon/carbon-copper composite material of the invention, step one, vacuum is high
Warm stove sintering parameter is that 1200 DEG C of temperature, vacuum environment is incubated air pressure in 2h, stove and is less than or equal to 100Pa.
Preferably, in the preparation method of a kind of short carbon fiber/carbon/carbon-copper composite material of the invention, step 2,
The granularity of copper powder is less than or equal to 50 microns, and apparent density density is 2.8~3g/cm3, the granularity of titanium valve is less than or equal to
74 microns, apparent density is 1.2~1.6g/cm3；The Ball-milling Time is 4~8h, ball：Material：The mass ratio of alcohol is 4~6:
0.5~1:0.3~0.5, the rotating speed of wet ball grinding is 0~300 turn/min；
Preferably, in the preparation method of a kind of short carbon fiber/carbon/carbon-copper composite material of the invention, step 2, by design
Component standby Cu/Ti powder is mixed with standby short carbon fiber in V-type agitator；Obtain short carbon fiber and metal dust
Well mixed composite granule；During mixing, control V-type batch mixing speed for 0~90r/min, be preferably 90r/min, the time be 0~
10h, preferably 5h.
Preferably, in the preparation method of a kind of short carbon fiber/carbon/carbon-copper composite material of the invention, step 3, electric discharge etc.
Ion sintering process is：First vacuumized with lobe pump, vacuum is 0.05mbar, then with 30MPa pressure to equipped with composite powder
The mould of body carries out precompressed 20min, then using 50~100 DEG C/min speed be warming up to 790~850 DEG C, pressure as 5~25MPa,
Soaking time is 10~30min；After terminating, room temperature is cooled to.
A kind of preparation method of short carbon fiber/carbon/carbon-copper composite material of the present invention, prepared short carbon fiber/carbon/carbon-copper composite material
Consistency is more than or equal to 84.14%, and resistivity is less than or equal to 0.66 μ Ω m, and bending strength is more than or equal to 241.84MPa.
As further preferred scheme, a kind of preparation method of short carbon fiber/carbon/carbon-copper composite material of the invention, it is prepared
Method comprises the steps
Step one
Long carbon fiber is cut into after short carbon fiber, high-temperature vacuum furnace is put into, at 1200 DEG C, 2h is incubated, cools to room with the furnace
Temperature, obtains standby short carbon fiber；
Step 2
It is less than or equal to granularity, is preferably equal to the titanium valve that 50 Micron Copper Powders, granularity are less than or equal to preferably equal to 74 microns
For raw material；By ball：Material：The mass ratio of alcohol is 2:1:0.3；Abrading-ball, raw material and alcohol are added in ball mill and carry out ball milling；
The rotating speed of the ball milling is that 300 turns/min, Ball-milling Time are 8h；Obtain Cu/Ti powder；By gained Cu/Ti powder in vacuum bar
Dried under part, obtain standby Cu/Ti powder；When drying under vacuum, the air pressure in control device is less than or equal to
0.09MPa, control temperature be 50 DEG C；The mass ratio of the copper powder and titanium valve is 5:1；
Standby Cu/Ti powder is mixed with standby short carbon fiber in V-type agitator by the component of design；Obtain short carbon
Fiber and the well mixed composite granule of metal dust；Ti weight/mass percentage composition is 9%, short carbon fiber in the composite granule
Weight/mass percentage composition be 3%；
Step 3
Composite granule obtained by step 2 is loaded into mould, using discharge plasma sintering, short carbon fiber/composite copper material is obtained
Material；Sintering parameter is that temperature is 850 DEG C, 10~30min of soaking time, and sintering pressure is 5~25MPa；Short carbon fiber/the copper
The consistency of composite be more than or equal to 99.32%, resistivity be 0.3~0.66 μ Ω m, bending strength be 550~
806MPa。
Advantage and good effect
The present invention due to use above-mentioned process, thus, have the following advantages that and good effect：
1st, preferably, the present invention use a diameter of 7 μm of short carbon fiber, length for 1mm, can preferably play
To the toughening effect of metallic matrix., can be in batch mixing and burning relative to carbon fiber different in size, it is easier to occur to tangle and reunite
During knot, bring it is substantial amounts of cavity and gap, cause insufficient contact with metal dust, further influence densification process and
Other performances.This is also that the present invention wants first fixed limit to determine one of major reason of short carbon fiber size.
2nd, the present invention prepares Cu/Ti powder using ball milling mixing metal powder material, then V-type batch mixer is being used, specific
Short carbon fiber and metal dust are mixed under rotating speed, preferably can be well mixed two kinds of larger materials of density difference, relatively
In ball milling mixing, will not occur agglomeration, and it is almost seldom to the damage of fiber.
3rd, directly improve by the way of addition Ti powder or soak C/Cu interfaces, this can be avoided polluting environment, and
It is simple to operate.When the present invention is also avoided that using physics plating Ti simultaneously, short carbon fiber is difficult to electroplate uniform and complex operation, long fine
Dimension plating is cut short again, and fiber two ends can not cover complete deficiency again.
4th, relative to conventional thermocompression sintering processing, sintering can reduce sintering temperature from 1100 DEG C and the above in electric discharge etc.
To 790 DEG C~880 DEG C, sintering time is reduced to less than 1h from more than 12h, greatly reduces energy waste, saves the time
Cost.Meanwhile, during using further preferred embodiments of the present invention, its products obtained therefrom achieves unexpected effect.Especially
It is that the performance of its products obtained therefrom, which is well beyond, to be expected when using preferred plan.The consistency of finished product reaches obtained by its preferred plan
It is that 0.32 μ Ω m, bending strength reach 806MPa to 99.37%, electrical conductivity.
In summary, the present invention causes fiber to be evenly distributed on by adding appropriate Ti powder using suitable method for mixing
In metal dust, by discharge plasma sintering, can quickly it be prepared with satisfactory electrical conductivity and power below 890 DEG C
Learn short carbon fiber/carbon/carbon-copper composite material of performance.
Brief description of the drawings
Accompanying drawing 1 is the preferred preparation technology flow chart of short carbon fiber/carbon/carbon-copper composite material of the present invention.
Embodiment
Embodiment 1：
(1) by a diameter of 7 μm, the short carbon fiber that length is 1mm, high-temperature vacuum furnace, 1200 DEG C of temperature, vacuum environment are put into
It is incubated 2h.
(2) with wet ball grinding Cu/Ti powder, consuming time as 8h, ball cooking wine essence is than being 2:1:0.3；After vacuum drying, with
1mm short carbon fibers are used together V-type agitator and mixed, V-type batch mixing speed 90r/min, stir 5h；Obtain short carbon fiber and
The well mixed composite granule of metal dust, mass fraction containing Ti is 9%, and mass fraction containing short carbon fiber is 3%, and surplus is
Copper.
(3) during discharge plasma sintering, first vacuumized with lobe pump, vacuum is 0.05mbar, then with 30MPa
Pressure carry out precompressed 20min, then using 100 DEG C/min speed be warming up to 790 DEG C, pressure as 5MPa, soaking time is 10min；
After terminating, cooling circulating water is cooled to normal temperature.Prepare short carbon fiber/carbon/carbon-copper composite material.
The present embodiment is by directly adding Ti members usually wetting C/Cu interfaces, using the uniform batch mixing of V-type agitator, by putting
Electric plasma agglomeration, realizes Fast Sintering, prepares short carbon fiber/carbon/carbon-copper composite material with superperformance.Its consistency
For 84.14%, resistivity is 0.66 μ Ω m, and bending strength is 241.84MPa.
Embodiment 2：
(1) by a diameter of 7 μm, the short carbon fiber that length is 1mm, high-temperature vacuum furnace, 1200 DEG C of temperature, vacuum environment are put into
It is incubated 2h.
(2) with wet ball grinding Cu/Ti powder, consuming time as 8h, ball cooking wine essence is than being 2:1:0.3；After vacuum drying, with
1mm short carbon fibers are used together V-type agitator and mixed, V-type batch mixing speed 90r/min, stir 5h；Obtain short carbon fiber and
The well mixed composite granule of metal dust, mass fraction containing Ti is 9%, and mass fraction containing short carbon fiber is 3%, and surplus is
Copper.
(3) during discharge plasma sintering, first vacuumized with lobe pump, vacuum is 0.05mbar, then with 30MPa
Pressure carry out precompressed 20min, then using 100 DEG C/min speed be warming up to 820 DEG C, pressure as 5MPa, soaking time is 10min；
After terminating, cooling circulating water is cooled to normal temperature.Prepare short carbon fiber/carbon/carbon-copper composite material.
The present embodiment is by directly adding Ti members usually wetting C/Cu interfaces, using the uniform batch mixing of V-type agitator, by putting
Electric plasma agglomeration, realizes Fast Sintering, prepares short carbon fiber/carbon/carbon-copper composite material with superperformance.Its consistency
For 89.59%, resistivity is 0.51 μ Ω m, and bending strength is 321.52MPa.
Embodiment 3：
(1) by a diameter of 7 μm, the short carbon fiber that length is 1mm, high-temperature vacuum furnace, 1200 DEG C of temperature, vacuum environment are put into
It is incubated 2h.
(2) with wet ball grinding Cu/Ti powder, consuming time as 8h, ball cooking wine essence is than being 2:1:0.3；After vacuum drying, with
1mm short carbon fibers are used together V-type agitator and mixed, V-type batch mixing speed 90r/min, stir 5h；Obtain short carbon fiber and
The well mixed composite granule of metal dust, mass fraction containing Ti is 9%, and mass fraction containing short carbon fiber is 3%, and surplus is
Copper.
(3) during discharge plasma sintering, first vacuumized with lobe pump, vacuum is 0.05mbar, then with 30MPa
Pressure carry out precompressed 20min, then using 100 DEG C/min speed be warming up to 850 DEG C, pressure as 5MPa, soaking time is 10min；
After terminating, cooling circulating water is cooled to normal temperature.Prepare short carbon fiber/carbon/carbon-copper composite material.
The present embodiment is by directly adding Ti members usually wetting C/Cu interfaces, using the uniform batch mixing of V-type agitator, by putting
Electric plasma agglomeration, realizes Fast Sintering, prepares short carbon fiber/carbon/carbon-copper composite material with superperformance.Its consistency
For 99.37%, resistivity is 0.32 μ Ω m, and bending strength is 806MPa.
Embodiment 4：
(1) by a diameter of 7 μm, the short carbon fiber that length is 1mm, high-temperature vacuum furnace, 1200 DEG C of temperature, vacuum environment are put into
It is incubated 2h.
(2) with wet ball grinding Cu/Ti powder, consuming time as 8h, ball cooking wine essence is than being 2:1:0.3；After vacuum drying, with
1mm short carbon fibers are used together V-type agitator and mixed, V-type batch mixing speed 90r/min, stir 5h；Obtain short carbon fiber and
The well mixed composite granule of metal dust, mass fraction containing Ti is 9%, and mass fraction containing short carbon fiber is 3%, and surplus is
Copper.
(3) during discharge plasma sintering, first vacuumized with lobe pump, vacuum is 0.05mbar, then with 30MPa
Pressure carry out precompressed 20min, then using 100 DEG C/min speed be warming up to 880 DEG C, pressure as 5MPa, soaking time is 10min；
After terminating, cooling circulating water is cooled to normal temperature.Prepare short carbon fiber/carbon/carbon-copper composite material.
The present embodiment is by directly adding Ti members usually wetting C/Cu interfaces, using the uniform batch mixing of V-type agitator, by putting
Electric plasma agglomeration, realizes Fast Sintering, prepares short carbon fiber/carbon/carbon-copper composite material with superperformance.Its consistency
For 86.41%, resistivity is 0.44 μ Ω m, and bending strength is 392.74MPa.
Embodiment 5：
(1) by a diameter of 7 μm, the short carbon fiber that length is 1mm, high-temperature vacuum furnace, 1200 DEG C of temperature, vacuum environment are put into
It is incubated 2h.
(2) with wet ball grinding Cu/Ti powder, consuming time as 8h, ball cooking wine essence is than being 2:1:0.3；After vacuum drying, with
1mm short carbon fibers are used together V-type agitator and mixed, V-type batch mixing speed 90r/min, stir 5h；Obtain short carbon fiber and
The well mixed composite granule of metal dust, mass fraction containing Ti is 9%, and mass fraction containing short carbon fiber is 3%, and surplus is
Copper.
(3) during discharge plasma sintering, first vacuumized with lobe pump, vacuum is 0.05mbar, then with 30MPa
Pressure carry out precompressed 20min, then using 100 DEG C/min speed be warming up to 850 DEG C, pressure as 25MPa, soaking time is 10min；
After terminating, cooling circulating water is cooled to normal temperature.Prepare short carbon fiber/carbon/carbon-copper composite material.
The present embodiment is by directly adding Ti members usually wetting C/Cu interfaces, using the uniform batch mixing of V-type agitator, by putting
Electric plasma agglomeration, realizes Fast Sintering, prepares short carbon fiber/carbon/carbon-copper composite material with superperformance.Its consistency
For 99.75%, resistivity is 0.32 μ Ω m, and bending strength is 651.18MPa.
Embodiment 6：
(1) by a diameter of 7 μm, the short carbon fiber that length is 1mm, high-temperature vacuum furnace, 1200 DEG C of temperature, vacuum environment are put into
It is incubated 2h.
(2) with wet ball grinding Cu/Ti powder, consuming time as 8h, ball cooking wine essence is than being 2:1:0.3；After vacuum drying, with
1mm short carbon fibers are used together V-type agitator and mixed, V-type batch mixing speed 50r/min, stir 5h；Obtain short carbon fiber and
The well mixed composite granule of metal dust, mass fraction containing Ti is 9%, and mass fraction containing short carbon fiber is 3%, and surplus is
Copper.
(3) during discharge plasma sintering, first vacuumized with lobe pump, vacuum is 0.05mbar, then with 30MPa
Pressure carry out precompressed 20min, then using 100 DEG C/min speed be warming up to 850 DEG C, pressure as 5MPa, soaking time is 15min；
After terminating, cooling circulating water is cooled to normal temperature.Prepare short carbon fiber/carbon/carbon-copper composite material.
The present embodiment is by directly adding Ti members usually wetting C/Cu interfaces, using the uniform batch mixing of V-type agitator, by putting
Electric plasma agglomeration, realizes Fast Sintering, prepares short carbon fiber/carbon/carbon-copper composite material with superperformance.Its consistency
For 99.32%, resistivity is 0.24 μ Ω m, and bending strength is 550.37MPa.
Comparative example 1
(1) by a diameter of 7 μm, the short carbon fiber that length is 5mm, high-temperature vacuum furnace, 1200 DEG C of temperature, vacuum environment are put into
It is incubated 2h.
(2) with wet ball grinding Cu/Ti powder, consuming time as 8h, ball cooking wine essence is than being 2:1:0.3；After vacuum drying, with
5mm short carbon fibers are used together V-type agitator and mixed, V-type batch mixing speed 90r/min, stir 5h；Obtain short carbon fiber and
The well mixed composite granule of metal dust, mass fraction containing Ti is 9%, and mass fraction containing short carbon fiber is 3%, and surplus is
Copper.
(3) during discharge plasma sintering, first vacuumized with lobe pump, vacuum is 0.05mbar, then with 30MPa
Pressure carry out precompressed 20min, then using 100 DEG C/min speed be warming up to 850 DEG C, pressure as 5MPa, soaking time is 10min；
After terminating, cooling circulating water is cooled to normal temperature.Prepare short carbon fiber/carbon/carbon-copper composite material.
The present embodiment is by directly adding Ti members usually wetting C/Cu interfaces, using the uniform batch mixing of V-type agitator, by putting
Electric plasma agglomeration, realizes Fast Sintering, prepares short carbon fiber/carbon/carbon-copper composite material with superperformance.Its consistency
For 80.51%, resistivity is 0.58 μ Ω m, and bending strength is 274MPa.
Comparative example 2
(1) by a diameter of 7 μm, the short carbon fiber that length is 1mm, high-temperature vacuum furnace, 1200 DEG C of temperature, vacuum environment are put into
It is incubated 2h.
(2) with wet ball grinding Cu/Ti powder, consuming time as 8h, ball cooking wine essence is than being 2:1:0.3；After vacuum drying, with
1mm short carbon fibers are used together V-type agitator and mixed, V-type batch mixing speed 90r/min, stir 5h；Obtain short carbon fiber and
The well mixed composite granule of metal dust, mass fraction containing Ti is 9%, and mass fraction containing short carbon fiber is 10%, surplus
For copper.
(3) during discharge plasma sintering, first vacuumized with lobe pump, vacuum is 0.05mbar, then with 30MPa
Pressure carry out precompressed 20min, then using 100 DEG C/min speed be warming up to 850 DEG C, pressure as 5MPa, soaking time is 10min；
After terminating, cooling circulating water is cooled to normal temperature.Prepare short carbon fiber/carbon/carbon-copper composite material.
The present embodiment is by directly adding Ti members usually wetting C/Cu interfaces, using the uniform batch mixing of V-type agitator, by putting
Electric plasma agglomeration, realizes Fast Sintering, prepares short carbon fiber/carbon/carbon-copper composite material with superperformance.Its consistency
For 78.44%, resistivity is 0.92 μ Ω m, and bending strength is 132MPa.
Claims (10)
1. a kind of preparation method of short carbon fiber/carbon/carbon-copper composite material, it is characterised in that：By well mixed copper source, titanium source and short
After carbon fiber is well mixed, using discharge plasma sintering, short carbon fiber/carbon/carbon-copper composite material is obtained；Sintering parameter is temperature 790
~880 DEG C, 10~30min of soaking time, sintering pressure is 5~25MPa；Copper is zeroth order in copper source；Titanium in the titanium source
For zeroth order.
2. a kind of preparation method of short carbon fiber/carbon/carbon-copper composite material according to claim 1, it is characterised in that：The copper
Source is copper powder and/or copper-titanium alloy powder；The titanium source is titanium valve and/or copper-titanium alloy powder.
3. a kind of preparation method of short carbon fiber/carbon/carbon-copper composite material according to claim 1, it is characterised in that：It is described short
The length of carbon fiber is less than or equal to 1mm.
4. a kind of preparation method of short carbon fiber/carbon/carbon-copper composite material according to claim 3, it is characterised in that：It is described short
A diameter of 6~10 μm of carbon fiber.
5. a kind of preparation method of short carbon fiber/carbon/carbon-copper composite material according to claim 4, it is characterised in that：Including under
State step：
Step one
Long carbon fiber is cut into after short carbon fiber, high-temperature vacuum furnace is put into, at 1000~1200 DEG C, 0.5~2h is incubated；It is cold with stove
But to room temperature, standby short carbon fiber is obtained；
Step 2
It will under vacuum be dried with Cu/Ti powder made from wet ball grinding, and obtain standby Cu/Ti powder；The standby Cu/
In Ti powder, Cu and Ti mass ratio are 90~80:10~20；By the component of design by standby Cu/Ti powder and standby short carbon
Fiber is mixed in V-type agitator；Obtain short carbon fiber and the well mixed composite granule of metal dust；The composite granule
In, the mass ratio of raw material is Cu in Cu, Ti, short carbon fiber three：Ti：Short carbon fiber=43.2~49.5:10.8~9:1.5~6；
Step 3
Composite granule obtained by step 2 is loaded into mould, using discharge plasma sintering, short carbon fiber/carbon/carbon-copper composite material is obtained；
Sintering parameter is 790 DEG C~880 DEG C of temperature, and 10~30min of soaking time, sintering pressure is 5~25MPa.
6. a kind of preparation method of short carbon fiber/carbon/carbon-copper composite material according to claim 5, it is characterised in that：Step one
In, high-temperature vacuum furnace sintering parameter is that 1200 DEG C of temperature, vacuum environment is incubated air pressure in 2h, stove and is less than or equal to 100Pa.
7. a kind of preparation method of short carbon fiber/carbon/carbon-copper composite material according to claim 5, it is characterised in that：
In step 2, the granularity of copper powder is less than or equal to 50 microns, and apparent density density is 2.8~3g/cm3, the granularity of titanium valve is less than
Equal to 74 microns, apparent density is 1.2~1.6g/cm3；The Ball-milling Time is 4~8h, ball：Material：The mass ratio of alcohol is 4
~6:0.5~1:0.3~0.5, the rotating speed of wet ball grinding is 180~300 turns/min；
In step 2, standby Cu/Ti powder is mixed with standby short carbon fiber in V-type agitator by the component of design；
To short carbon fiber and the well mixed composite granule of metal dust；During mixing, V-type batch mixing speed is controlled for 10~90r/min, excellent
Elect 90r/min as, the time is 1~10h.
8. a kind of preparation method of short carbon fiber/carbon/carbon-copper composite material according to claim 5, it is characterised in that：Step 3
In, discharge plasma sintering process is：First vacuumized with lobe pump, vacuum is 0.05mbar, then with 30MPa pressure to dress
The mould for having composite granule carries out precompressed 20min, then so that 50~100 DEG C/min speed is warming up to 790~850 DEG C, pressure is 5
~25MPa, soaking time is 10~30min；After terminating, room temperature is cooled to.
9. a kind of preparation method of short carbon fiber/carbon/carbon-copper composite material according to claim 5~8 any one, its feature
It is：The consistency of prepared short carbon fiber/carbon/carbon-copper composite material is more than or equal to 84.14%, and resistivity is less than or equal to 0.66 μ
Ω m, bending strength is more than or equal to 241.84MPa.
10. a kind of preparation method of short carbon fiber/carbon/carbon-copper composite material according to claim 1, it is characterised in that；Including under
State step：
Step one
Long carbon fiber is cut into after short carbon fiber, high-temperature vacuum furnace is put into, at 1200 DEG C, 2h is incubated, cools to room temperature with the furnace, obtain
To standby short carbon fiber；
Step 2
50 Micron Copper Powders, granularity are less than or equal to using granularity and are less than or equal to 74 microns of titanium valve as raw material；By ball：Material：The matter of alcohol
Amount is than being 2:1:0.3；Abrading-ball, raw material and alcohol are added in ball mill and carry out ball milling；The rotating speed of the ball milling be 300 turns/
Min, Ball-milling Time are 8h；Obtain Cu/Ti powder；Gained Cu/Ti powder is dried under vacuum, standby Cu/Ti is obtained
Powder；When drying under vacuum, the air pressure in control device is less than or equal to 0.09MPa, controls temperature to be 50 DEG C；The copper
The mass ratio of powder and titanium valve is 5:1；
Standby Cu/Ti powder is mixed with standby short carbon fiber in V-type agitator by the component of design；Obtain short carbon fiber
The composite granule being well mixed with metal dust；Ti weight/mass percentage composition is the 9%, matter of short carbon fiber in the composite granule
It is 3% to measure percentage composition；
Step 3
Composite granule obtained by step 2 is loaded into mould, using discharge plasma sintering, short carbon fiber/carbon/carbon-copper composite material is obtained；
Sintering parameter is that temperature is 850 DEG C, 10~30min of soaking time, and sintering pressure is 5~25MPa；Short carbon fiber/the copper is multiple
The consistency of condensation material be more than or equal to 99.32%, resistivity be the μ Ω m of 0.30.3~0.66, bending strength be 550~
806MPa。
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