CN113151709B - Titanium carbide-graphite hybrid reinforced copper-based electric contact composite material and preparation method thereof - Google Patents
Titanium carbide-graphite hybrid reinforced copper-based electric contact composite material and preparation method thereof Download PDFInfo
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 239000010439 graphite Substances 0.000 title claims abstract description 76
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 76
- 239000002131 composite material Substances 0.000 title claims abstract description 74
- 239000010949 copper Substances 0.000 title claims abstract description 70
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 70
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000010936 titanium Substances 0.000 title claims abstract description 37
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000005245 sintering Methods 0.000 claims abstract description 17
- 238000007731 hot pressing Methods 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 239000011812 mixed powder Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000003610 charcoal Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001764 infiltration Methods 0.000 claims description 5
- 230000008595 infiltration Effects 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 abstract description 11
- 239000002994 raw material Substances 0.000 abstract description 6
- 238000002679 ablation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010891 electric arc Methods 0.000 abstract description 4
- 238000000280 densification Methods 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- 238000005411 Van der Waals force Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000009715 pressure infiltration Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000011208 reinforced composite material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Classifications
-
- 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
-
- 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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
-
- 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
- C22C32/0047—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 with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—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 with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
Abstract
The invention discloses a titanium carbide-graphite hybrid reinforced copper-based electric contact composite material and a preparation method thereof. The preparation method of the composite material comprises the following steps: mixing Cu-Ti-graphite, cold pressing to form prefabricated block, impregnating and reacting to prepare composite material blank, and hot pressing and sintering to implement tissue densification. The invention utilizes a Cu-Ti-graphite system as a raw material, leads titanium and graphite to react to generate TiC, obtains a TiC and graphite mixed reinforcement system by controlling components, graphite granularity, reaction temperature, time and the like in the raw material in the reaction process, and effectively improves the electric arc ablation resistance, wear resistance and antifriction performance of the composite material through the mixed reinforcement effect.
Description
Technical Field
The invention relates to the field of electrical materials, in particular to a titanium carbide-graphite hybrid reinforced copper-based electric contact composite material and a preparation method thereof.
Background
TiC has the characteristics of high melting point, high hardness, high elastic modulus and the like, is widely applied to the preparation of metal-based composite materials such as aluminum base, nickel base, titanium base and the like, and has certain conductivity due to the characteristic of covalent bonds and metal bonds in chemical bonds, so that TiC is an ideal reinforcing phase for preparing the copper-based composite materials requiring high strength and high conductivity.
For example, patent CN111118324A discloses a method for preparing a TiC reinforced copper-based composite material with a coupling agent, the method comprises preparing titanium-coated titanium carbide powder by magnetron sputtering, then preparing a titanium carbide reinforced copper-based composite material by ball milling, compacting and sintering, and performing aging treatment to obtain a composite reinforced copper-based composite material, wherein the interface bonding strength of the composite material reinforcement and the copper matrix is high, and the hardness, strength, wear resistance and corrosion resistance are obviously improved while a certain electrical conductivity is ensured by composite reinforcement.
The graphite has physical properties such as higher thermal conductivity and electrical conductivity, lower thermal expansion coefficient and the like, and simultaneously has good antifriction property because the graphite is of a lamellar structure, the distance between layers is large, the bonding force (Van der Waals force) is small, and each layer can slide, thereby being an ideal reinforcement for preparing the copper-based composite material.
For example, patent CN110343896B discloses a preparation method and application of flake graphite reinforced copper-based composite material, wherein Cu-xB alloy is used as a matrix material of the composite material, natural flake graphite with different sizes is used as a reinforcing phase of the composite material, the flake graphite is subjected to allergenicity and activation treatment, and then subjected to vibration orientation arrangement, and a graphite/copper composite material is prepared by using an air pressure infiltration method. Due to the in-situ generation of the B4C interface, the prepared graphite/copper composite material has lower density and high thermal conductivity along the flake graphite sheet direction.
In recent years, in the preparation of composite materials, reinforcements with different shapes, different properties or different dimensions are simultaneously added into a matrix to form a hybrid system, and materials with more excellent comprehensive properties are prepared by utilizing the synergistic effect of the hybrid system, so that the design and preparation concept of the composite materials becomes important. The TiC and graphite have good compatibility on a copper matrix, and the TiC and the graphite are used as a reinforcement to form a hybrid system, so that a copper-based composite material with more excellent performance compared with a single reinforced phase reinforced composite material can be prepared.
However, how to prepare a high-performance copper-based electrical contact composite material with electrical conductivity, thermal conductivity, arc erosion resistance and abrasion resistance is still a research and development hotspot in the field.
Disclosure of Invention
Based on the above, the invention provides the titanium carbide-graphite hybrid reinforced copper-based electric contact composite material with excellent electric conduction and heat conduction performance, arc ablation resistance and wear resistance and the preparation method thereof.
The invention provides a preparation method of a titanium carbide-graphite hybrid reinforced copper-based electric contact composite material, which comprises the following steps:
(1) titanium powder, graphite powder and copper powder are mixed according to the mass ratio of 1-4: 1: 8-25, mechanically mixing in a mixer for 3-4 hours to obtain uniform Cu-Ti-graphite mixed powder;
(2) cold press molding: cold-pressing the Cu-Ti-graphite mixed powder into a precast block under the pressure of 20-300 MPa;
(3) infiltration and reaction: smelting electrolytic copper at the temperature of 1150-1250 ℃, then immersing the prefabricated block obtained in the step (2) into a copper-based material melt, preserving heat for 5-60 minutes to enable titanium and graphite to fully react and enable the prefabricated block to be further infiltrated by the copper melt, and then taking out and cooling the reacted prefabricated block to obtain a titanium carbide-graphite hybrid reinforced copper-based electrical contact composite material blank;
(4) hot-pressing and sintering: and (4) polishing the surface of the composite material blank in the step (3), placing the composite material blank in a vacuum hot-pressing sintering furnace, heating to 850-1050 ℃, preserving heat for 1-4 hours at 300-800MPa to densify the composite material, and reducing the temperature in the hot-pressing sintering furnace to obtain the titanium carbide-graphite hybrid reinforced copper-based electric contact composite material.
Preferably, the titanium powder in the step (1) has the granularity of 1-200 μm and the purity of more than 99 percent, the graphite powder has the granularity of 1-100 μm and the purity of more than 99 percent, and the copper powder has the granularity of 5-500 μm and the purity of more than 99 percent.
Preferably, the copper-based material in the step (3) is electrolytic copper with the purity of more than 99.5 percent.
Preferably, the mass of the electrolytic copper is 2 to 5 times of the mass of the Cu-Ti-graphite mixed powder.
Preferably, the copper-based material smelting method in the step (3) is to place the copper-based material in a vacuum high-temperature resistance furnace or an induction furnace, or place the copper-based material in a common high-temperature resistance furnace or an induction furnace under the protection of a covering agent.
Preferably, the covering agent is charcoal or graphite.
The basic principle of the invention for preparing the titanium carbide-graphite hybrid reinforced copper-based electric contact composite material is that a Cu-Ti-graphite system is utilized, titanium and graphite react to generate TiC by hot pressing and sintering, and in the reaction process, the graphite only partially reacts by controlling components in the raw materials, the graphite granularity, the reaction temperature and the reaction time, the generated TiC and residual graphite form a hybrid reinforced system, and the electric arc ablation resistance, the wear resistance and the antifriction performance of the composite material are effectively improved by the hybrid reinforced effect while the wettability of the graphite and a copper matrix is improved.
The invention also aims to provide the titanium carbide-graphite hybrid reinforced copper-based electric contact composite material prepared by the method, and the composite material contains granular TiC and a graphite hybrid reinforced system taking the TiC as an interface layer.
Preferably, the reinforcing system accounts for 5-55% of the composite material by mass.
Compared with the prior art, the invention has the following beneficial technical effects: the composite material reinforcement prepared by the invention is a granular TiC and graphite hybrid reinforcement system taking TiC as an interface layer, wherein the TiC interface layer can effectively improve the interface bonding force of graphite and a copper matrix, and meanwhile, TiC with high hardness and high elastic modulus, graphite with excellent electric conductivity and antifriction performance and the granular TiC and TiC interface layer form an excellent hybrid reinforcement effect, so that the electric conductivity and the heat conductivity of the composite material are ensured, and the electric arc ablation resistance, the wear resistance and the antifriction performance of the composite material are effectively improved.
Drawings
FIG. 1 is a microstructure diagram of a titanium carbide-graphite hybrid reinforced copper-based electrical contact composite material prepared in example 1 of the present invention;
fig. 2 is a microstructure diagram of the titanium carbide-graphite hybrid reinforced copper-based electrical contact composite material prepared in example 2 of the present invention.
Detailed Description
The present invention is further illustrated by the following examples.
Example 1
A preparation method of a titanium carbide-graphite hybrid reinforced copper-based electric contact composite material comprises the following steps:
(1) weighing the following raw materials in percentage by mass:
titanium powder with the granularity of 20 mu m and the purity of more than 99 percent: 21 percent of the total weight of the waste water,
graphite powder with a particle size of 50 μm and a purity of > 99%: 7 percent of
Copper powder with granularity of 50 μm and purity of more than 99%: 72 percent
Mechanically mixing the titanium powder, the graphite powder and the copper powder in a mixer to obtain uniform Cu-Ti-graphite mixed powder;
(2) cold press molding: cold-pressing the Cu-Ti-graphite mixed powder into a precast block under the pressure of 100 MPa;
(3) infiltration and reaction: weighing electrolytic copper with the mass being 3 times of the total weight of the mixed powder and the purity being more than 99.5%, placing the weighed electrolytic copper in a common high-temperature resistance furnace under the protection of a charcoal covering agent, smelting at 1250 ℃, then immersing the precast block in the step (2) into the melt, preserving heat for 30 minutes to enable titanium and graphite to fully react and enable the precast block to be fully impregnated by the copper melt, then taking out the reacted precast block and cooling to obtain a titanium carbide-graphite hybrid reinforced copper-based electric contact composite material blank;
(4) hot-pressing and sintering: and (4) polishing the surface of the composite material blank in the step (3), placing the composite material blank in a vacuum hot-pressing sintering furnace, heating to 900 ℃, preserving heat for 2 hours under 600Mpa to densify the composite material, and cooling in the vacuum hot-pressing sintering furnace to obtain the titanium carbide-graphite hybrid reinforced copper-based electric contact composite material.
The microstructure of the prepared composite material is shown in figure 1, and granular TiC with uniform distribution and granularity and unreacted residual graphite are distributed on the copper base, and meanwhile, a TiC interface layer is formed at the graphite interface in a reaction mode.
Tests prove that the electric conductivity of the titanium carbide-graphite hybrid reinforced copper-based electric contact composite material prepared by the embodiment reaches 52% IACS, and the composite material has excellent wear resistance and friction reduction performance, and the electric arc ablation resistance is superior to that of a single TiC or graphite reinforced copper-based composite material with a reinforcement volume fraction phase diagram.
Example 2
A preparation method of a titanium carbide-graphite hybrid reinforced copper-based electric contact composite material comprises the following steps:
(1) weighing the following raw materials in percentage by mass:
titanium powder with the granularity of 10 mu m and the purity of more than 99 percent: 4 percent of the total weight of the mixture,
graphite powder with a particle size of 50 μm and a purity of > 99%: 4 percent of
Copper powder with the granularity of 100 mu m and the purity of more than 99 percent: 92 percent of
Mechanically mixing the titanium powder, the graphite powder and the copper powder in a mixer to obtain uniform Cu-Ti-graphite mixed powder;
(2) cold press molding: cold-pressing the Cu-Ti-graphite mixed powder into a precast block under the pressure of 200 MPa;
(3) infiltration and reaction: weighing electrolytic copper with the mass 2 times of the total weight of the mixed powder and the purity more than 99.5 percent, placing the weighed electrolytic copper in a common high-temperature resistance furnace under the protection of a charcoal covering agent, smelting at 1150 ℃, then immersing the prefabricated block in the step (2) into the melt, preserving heat for 20 minutes to ensure that titanium and graphite fully react and the prefabricated block is fully impregnated by the copper melt, then taking out the reacted prefabricated block and cooling to obtain a titanium carbide-graphite hybrid reinforced copper-based electric contact composite material blank;
(4) hot-pressing and sintering: and (4) polishing the surface of the composite material blank in the step (3), placing the composite material blank in a vacuum hot-pressing sintering furnace, heating to 950 ℃, preserving heat for 2 hours under 700Mpa so as to densify the composite material, and cooling in the vacuum hot-pressing sintering furnace to obtain the titanium carbide-graphite hybrid reinforced copper-based electric contact composite material.
The microstructure of the prepared composite material is shown in fig. 1, and compared with the composite material obtained in example 1, in this example, most TiC and graphite are subjected to interface reaction due to the reduction of the ratio of Ti to C, a TiC interface layer is formed around the graphite, and granular TiC is less.
Through tests, the electrical conductivity of the titanium carbide-graphite hybrid reinforced copper-based electrical contact composite material prepared by the embodiment reaches 67% IACS.
Example 3
A preparation method of a titanium carbide-graphite hybrid reinforced copper-based electric contact composite material comprises the following steps:
(1) weighing the following raw materials in percentage by mass:
titanium powder with a particle size of 5 μm and a purity of > 99%: 10 percent of the total weight of the mixture,
graphite powder with particle size of 10 μm and purity > 99%: 10 percent of
Copper powder with granularity of 50 μm and purity of more than 99%: 80 percent of
Mechanically mixing the titanium powder, the graphite powder and the copper powder in a mixer to obtain uniform Cu-Ti-graphite mixed powder;
(2) cold press molding: cold-pressing the Cu-Ti-graphite mixed powder into a precast block under the pressure of 200 MPa;
(3) infiltration and reaction: weighing electrolytic copper with the mass being 3 times of the total weight of the mixed powder and the purity being more than 99.5%, placing the weighed electrolytic copper in a common high-temperature resistance furnace under the protection of a charcoal covering agent, smelting at 1200 ℃, then immersing the prefabricated block in the step (2) into the melt, preserving heat for 40 minutes to enable titanium and graphite to fully react and enable the prefabricated block to be fully impregnated by the copper melt, then taking out the reacted prefabricated block and cooling to obtain a titanium carbide-graphite hybrid reinforced copper-based electric contact composite material blank;
(4) hot-pressing and sintering: and (4) polishing the surface of the composite material blank in the step (3), placing the composite material blank in a vacuum hot-pressing sintering furnace, heating to 950 ℃, preserving heat for 2 hours under 700Mpa so as to densify the composite material, and cooling in the vacuum hot-pressing sintering furnace to obtain the titanium carbide-graphite hybrid reinforced copper-based electric contact composite material.
Through tests, the electrical conductivity of the titanium carbide-graphite hybrid reinforced copper-based electrical contact composite material prepared by the embodiment reaches 57% IACS.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. The preparation method of the titanium carbide-graphite hybrid reinforced copper-based electric contact composite material is characterized by comprising the following steps of:
(1) titanium powder, graphite powder and copper powder are mixed according to the mass ratio of 1-3: 1: mechanically mixing 8-25 hours in a mixer to obtain uniform Cu-Ti-graphite mixed powder;
(2) cold press molding: cold-pressing the Cu-Ti-graphite mixed powder into a precast block under the pressure of 20-300 MPa;
(3) infiltration and reaction: smelting electrolytic copper at the temperature of 1150-1250 ℃, then immersing the prefabricated block obtained in the step (2) into a copper-based material melt, preserving heat for 5-60 minutes to enable titanium and graphite to fully react and further enable the prefabricated block to be infiltrated by the copper melt, and then taking out and cooling the reacted prefabricated block to obtain a titanium carbide-graphite hybrid reinforced copper-based electrical contact composite material blank;
(4) hot-pressing and sintering: polishing the surface of the composite material blank in the step (3), placing the composite material blank in a vacuum hot-pressing sintering furnace, heating to 850-;
the granularity of the titanium powder in the step (1) is 1-200 mu m, the purity is more than 99 percent, the granularity of the graphite powder is 1-100 mu m, the purity is more than 99 percent, the granularity of the copper powder is 5-500 mu m, and the purity is more than 99 percent;
the copper-based material in the step (3) is electrolytic copper, and the purity is more than 99.5%;
the mass of the electrolytic copper is 2-5 times of that of the Cu-Ti-graphite mixed powder;
the composite material contains granular TiC and a graphite hybrid reinforced system with the TiC as an interface layer.
2. The method for preparing the titanium carbide-graphite hybrid reinforced copper-based electric contact composite material according to claim 1, wherein the copper-based material smelting method in the step (3) is to place the copper-based material in a vacuum high-temperature resistance furnace or an induction furnace, or place the copper-based material in a common high-temperature resistance furnace or an induction furnace under the protection of a covering agent.
3. The method of claim 2, wherein the covering agent is charcoal or graphite.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6723278B1 (en) * | 1998-11-12 | 2004-04-20 | The National University Of Singapore | Method of laser casting copper-based composites |
| CN110791677A (en) * | 2019-11-18 | 2020-02-14 | 中国科学院上海硅酸盐研究所 | High-performance wear-resistant bronze-based composite material and preparation method and application thereof |
| CN111485129A (en) * | 2019-01-29 | 2020-08-04 | 华北电力大学（保定） | TiC/Ti5Si3Reinforced copper-based composite material and preparation method thereof |
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- 2021-04-23 CN CN202110443227.3A patent/CN113151709B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6723278B1 (en) * | 1998-11-12 | 2004-04-20 | The National University Of Singapore | Method of laser casting copper-based composites |
| CN111485129A (en) * | 2019-01-29 | 2020-08-04 | 华北电力大学（保定） | TiC/Ti5Si3Reinforced copper-based composite material and preparation method thereof |
| CN110791677A (en) * | 2019-11-18 | 2020-02-14 | 中国科学院上海硅酸盐研究所 | High-performance wear-resistant bronze-based composite material and preparation method and application thereof |
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