CN108715960A - A kind of aluminium base Carbon Nanotubes Reinforced Composites and preparation method - Google Patents
A kind of aluminium base Carbon Nanotubes Reinforced Composites and preparation method Download PDFInfo
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- CN108715960A CN108715960A CN201810607291.9A CN201810607291A CN108715960A CN 108715960 A CN108715960 A CN 108715960A CN 201810607291 A CN201810607291 A CN 201810607291A CN 108715960 A CN108715960 A CN 108715960A
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- aluminium base
- reinforced composites
- carbon nanotubes
- carbon nanotube
- base carbon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
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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
- C22C1/0408—Light metal alloys
- C22C1/0416—Aluminium-based alloys
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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
- C22C21/00—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
- C22C2026/002—Carbon nanotubes
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The present invention relates to a kind of aluminium base Carbon Nanotubes Reinforced Composites and preparation methods, the production for instrument rotating ring forge piece blank reheating of inclining certainly for helicopter.The limited problem of carbon nanotube generally existing upper intensity limit, traditional method for preparing aluminum-based composite material there are more microscopic void, interface cohesion is bad the defects of, cannot be satisfied subsequent forging requirement.The aluminium base Carbon Nanotubes Reinforced Composites of the present invention, ingredient and mass percent are:Carbon nanotube:0.1%-5%, Cu:3.2%-4.4%, Mg:1.0%-1.9%, Si:0.25%-0.3%, Fe:0.2%-0.4%, Zn:0.1%-0.2%, O:0%-0.3%, Al:Surplus.Consistent favorable dispersibility avoids the residual of dispersant and the introducing of oxide impurity;Hole can be completely eliminated, defect level is extremely low.Meet the needs of higher intensity, and preparation efficiency is high.
Description
Technical field
The present invention relates to a kind of aluminium base Carbon Nanotubes Reinforced Composites and preparation method, for helicopter from the instrument rotating ring that inclines
The production of forge piece blank reheating.
Background technology
It is one of the core component of helicopter from the instrument that inclines, ring portion puies forward the intensity, weight and wear-resisting property of material
Very high requirement is gone out, traditional aluminium alloy has been difficult to meet the requirements, and titanium alloy material cost is too high, weight is bigger than normal, not wear-resisting, aluminium
Based composites become first choice.The aluminum matrix composite of carbon nanotube enhancing has both intensity, weight and cost advantage, is applicable in very much
In manufacture rotating ring forge piece blank reheating, but the problem that generally existing upper intensity limit is limited.Traditional method for preparing aluminum-based composite material such as heat
Dispersant etc. to be added when the technologies such as isostatic sintering are due to batch mixing, there are more microscopic void, interfaces to tie for the material of acquisition
The defects of bad is closed, subsequent forging requirement is cannot be satisfied;Aluminium base prepared by casting answer material, and there is also more blow holes, inclined
The defects of analysis, is also not used to forging blank, can not meet requirement.
Invention content
The object of the present invention is to provide a kind of aluminium base Carbon Nanotubes Reinforced Composites and preparation methods, meet higher intensity
Needs, and preparation efficiency is high.
A kind of aluminium base Carbon Nanotubes Reinforced Composites, ingredient and mass percent are:Carbon nanotube:0.1%-5%,
Cu:3.2%-4.4%, Mg:1.0%-1.9%, Si:0.25%-0.3%, Fe:0.2%-0.4%, Zn:0.1%-0.2%,
O:0%-0.3%, Al:Surplus.
Carbon nanotube mass ratio is 5%.
A method of the aluminium base Carbon Nanotubes Reinforced Composites are prepared, are included the following steps:
(1) suitable carbon nanotube and Al alloy powder are selected according to ingredient and mass percent;
(2) carbon nanotube is mixed with Al alloy powder, acetone or absolute ethyl alcohol etc. is added and does not occur instead with raw material
The organic solvent answered is stirred 60-90 minutes using ultrasonic dispersion (being carried out by supersonic cleaning machine);
(3) vacuum drying in 12-15 hours, 50-70 DEG C of drying temperature are carried out to mixed liquid;
(4) discharge plasma sintering is carried out to the powder after drying.Sintering temperature is 400~650 DEG C, sintering pressure 50-
80MPa, heating rate are 50~100 DEG C/min, vacuum atmosphere soaking time 2-4 minutes;
(5) with stove water cooling.
Sintering temperature in step (4) is 500 DEG C, pressure 60Mpa, and heating rate is 50 DEG C/min, keeps the temperature 3 minutes.
The beneficial effects of the invention are as follows:Using liquid phase ultrasonic mixing, metal can be mixed uniformly with reinforcement powder, unanimously
Favorable dispersibility;Using vacuum drying, the residual of dispersant and the introducing of oxide impurity are avoided;It is burnt using plasma discharging
Knot technology is sintered, ionization activation of the sintering heat between the resistance heat and metal powder and reinforcement at hole position,
Hole can be completely eliminated, is embedded combination between pure atom between reinforcement and metallic matrix, defect level is extremely low.
Specific implementation mode
The ingredient and mass percent of aluminium base Carbon Nanotubes Reinforced Composites of the present invention be:
Carbon nanotube:0.1%-5%, Cu:3.2%-4.4%, Mg:1.0%-1.9%, Si:0.25%-0.3%, Fe:
0.2%-0.4%, Zn:0.1%-0.2%, O:0%-0.3%, Al:Surplus.
The method for preparing above-mentioned aluminium base Carbon Nanotubes Reinforced Composites, includes the following steps:
(1) suitable carbon nanotube and Al alloy powder are selected according to mentioned component and mass percent;
(2) carbon nanotube is mixed with Al alloy powder, acetone or absolute ethyl alcohol etc. is added and does not occur instead with raw material
The organic solvent answered is stirred 60-90 minutes using ultrasonic dispersion (being carried out by supersonic cleaning machine);
(3) vacuum drying in 12-15 hours, 50-70 DEG C of drying temperature are carried out to mixed liquid;
(4) discharge plasma sintering is carried out to the powder after drying.Sintering temperature is 400~650 DEG C, sintering pressure 50-
80MPa, heating rate are 50~100 DEG C/min, vacuum atmosphere soaking time 2-4 minutes;
(5) with stove water cooling.
Embodiment:According to 1:The 2A12 Al alloy powders of carbon nanotube and 10 μ m diameters are put into acetone by 19 mass ratio
Ultrasonic mixing 1 hour;The composite powder mixed is dried in vacuo 12 hours at 50 DEG C;Mixed-powder after drying is carried out
Discharge plasma sintering, sintering parameter:Pressure is 60MPa, and sintering temperature is 500 DEG C, and heating rate is 50 DEG C/min, 500 DEG C
Equipressure heat preservation 3 minutes, heat preservation terminate, with stove water cooling, to obtain fully dense carbon nanotube enhanced aluminium-based composite material.
Claims (4)
1. a kind of aluminium base Carbon Nanotubes Reinforced Composites, it is characterised in that:Its ingredient and mass percent are:Carbon nanotube:
0.1%-5%, Cu:3.2%-4.4%, Mg:1.0%-1.9%, Si:0.25%-0.3%, Fe:0.2%-0.4%, Zn:
0.1%-0.2%, O:0%-0.3%, Al:Surplus.
2. aluminium base Carbon Nanotubes Reinforced Composites according to claim 1, it is characterised in that:Carbon nanotube mass ratio is
5%.
3. a kind of method preparing aluminium base Carbon Nanotubes Reinforced Composites described in claims 1 or 2, which is characterized in that the party
Method includes the following steps:
(1) suitable carbon nanotube and Al alloy powder are selected according to ingredient and mass percent;
(2) carbon nanotube is mixed with Al alloy powder, is added what acetone or absolute ethyl alcohol etc. did not reacted with raw material
Organic solvent is stirred 60-90 minutes using ultrasonic dispersion (being carried out by supersonic cleaning machine);
(3) vacuum drying in 12-15 hours, 50-70 DEG C of drying temperature are carried out to mixed liquid;
(4) discharge plasma sintering is carried out to the powder after drying.Sintering temperature is 400~650 DEG C, sintering pressure 50-
80MPa, heating rate are 50~100 DEG C/min, vacuum atmosphere soaking time 2-4 minutes;
(5) with stove water cooling.
4. according to the method described in claim 3, it is characterized in that:Sintering temperature in step (4) is 500 DEG C, and pressure is
60Mpa, heating rate are 50 DEG C/min, keep the temperature 3 minutes.
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104862513A (en) * | 2015-05-04 | 2015-08-26 | 北京航空航天大学 | Method for preparing multiwalled carbon nanotube reinforced metal matrix composite by discharge plasma (SPS) sintering |
CN107099758A (en) * | 2017-03-18 | 2017-08-29 | 华南理工大学 | A kind of continuous reinforced aluminum matrix composites of CNT/carbon fiber and preparation method thereof |
CN107338372A (en) * | 2017-06-26 | 2017-11-10 | 桂林电子科技大学 | A kind of preparation and its application of the aluminum-based composite hydrogen manufacturing material of discharge plasma sintering |
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2018
- 2018-06-13 CN CN201810607291.9A patent/CN108715960A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104862513A (en) * | 2015-05-04 | 2015-08-26 | 北京航空航天大学 | Method for preparing multiwalled carbon nanotube reinforced metal matrix composite by discharge plasma (SPS) sintering |
CN107099758A (en) * | 2017-03-18 | 2017-08-29 | 华南理工大学 | A kind of continuous reinforced aluminum matrix composites of CNT/carbon fiber and preparation method thereof |
CN107338372A (en) * | 2017-06-26 | 2017-11-10 | 桂林电子科技大学 | A kind of preparation and its application of the aluminum-based composite hydrogen manufacturing material of discharge plasma sintering |
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