CN104911385A - Ultrafine ceramic particle Cu based composite material taking Ti2SnC as precursor and preparation method of composite material - Google Patents
Ultrafine ceramic particle Cu based composite material taking Ti2SnC as precursor and preparation method of composite material Download PDFInfo
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- CN104911385A CN104911385A CN201510385701.6A CN201510385701A CN104911385A CN 104911385 A CN104911385 A CN 104911385A CN 201510385701 A CN201510385701 A CN 201510385701A CN 104911385 A CN104911385 A CN 104911385A
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Abstract
The invention discloses an ultrafine ceramic particle Cu based composite material taking Ti2SnC as a precursor and a preparation method of the composite material. Micron-sized Ti2SnC with the volume content of 3-50% and micron-sized Cu serve as starting materials, ultrafine TiC0.5 particles are generated and uniformly dispersed in a Cu (Sn) matrix after reaction, and Cu crystalline grains are refined into sub-micron grade. The preparation method of the composite material includes the steps: uniformly mixing Ti2SnC powder and Cu powder on a ball mill and then forming the powder under the pressure of 120-250MPa; placing the powder into a high-temperature furnace; performing argon protection; increasing the temperature of the furnace to reach 1100-1250 DEG C; keeping the temperature for 30-60min; cooling the powder to obtain the ultrafine ceramic particle Cu based composite material. The preparation method has the remarkable advantages of simple process, convenience in operation and the like. The ultrafine ceramic particle Cu based composite material has the advantages of high strength and ductility, abrasion resistance and erosion resistance, and can be widely applied to the field of military equipment, high-speed railways, aerospace and the like such as high-strength box shell materials.
Description
Technical field
The present invention relates to a kind of with Ti
2snC is superfine ceramic granular superfine Cu based composites of presoma and preparation method thereof.
Background technology
There is high-yield strength high ductibility, wear-resistant, erosion-resistant copper-based material, the characteristic of Yin Qigao and be easy to machine-shaping, have very large application in fields such as war industry equipment, high-speed railway, aerospace, as high-strength case shell material etc.But for general copper-based material, high strength and high ductibility often can not obtain simultaneously.Copper has good plastic deformation ability, but its yield strength is lower.The means such as general employing work hardening and grain-boundary strengthening, namely by hindering the density of dislocation motion and increase dislocation obstacle, improve intensity.In recent years, intensity and the hardness of copper product is substantially increased by the means of ceramic phase particles Reinforced Cu-Base Composites.But these methods are often to sacrifice the plasticity and toughness of Copper substrate for cost.And employing reduces ceramic particle size, refinement Cu matrix and in-situ preparation ceramic particle reinforced phase and obtains with the method for the strong interfacial bond of metallic substance to be compare effective means to improving Particles Reinforced Cu-Base Composites plasticity and toughness.
Ti
2snC is a kind of novel double carbide pottery, and it, simultaneously containing covalent linkage and metallic bond, is integrated with the advantage of pottery and metal, as high physical strength, excellent heat-shock resistance, good electroconductibility and workability etc.Ti
2snC belongs to the hexagonal crystallographic texture of layering, and each Ti layer of its intimate solid matter intersects with Sn atomic shell, and C atom fills the octahedral site between Ti layer, and Sn atom is positioned at the center of the trigonal prism with larger space, Ti
6the octahedra seamed edge of C is shared.In their structure, combination (the i.e. nanoscale TiC between Ti atom and C atom
0.5group) be strong covalent bond, and between Ti atom and Sn atom, be weak binding, be similar to lamellar graphite, interlayer is combined by Van der Waals force.For this reason, easily sliding under the effect of external force between layers perpendicular to c-axis, Sn atom is easier escapes from its position.These distinctive nano lamellar crystalline structure, pyrolytic decomposition and heterolysis behavior, make us expect, can adopt Ti
2snC pottery adds in Cu melt, due to Cu and Ti as precursor
2sn in SnC has strong cementing to make a concerted effort, and by the stripping of Sn atom, can obtain nano TiC
0.5group, and TiC
0.5good wettability is had with Cu, can as the nucleating agent of Cu alloy or fining agent.Such nano TiC
0.5group, both can be used as nucleating agent refinement Cu matrix grain, again can as effective nanometer reinforcement Reinforced Cu-Base Composites, and the matrix material of preparation like this will have high strength and high ductibility simultaneously.And the work of this respect have not been reported at present.
Summary of the invention
The object of the present invention is to provide a kind of with Ti
2snC is superfine ceramic grain refine Cu based composites of presoma and preparation method thereof.
Technical scheme of the present invention:
1. the present invention is with Ti
2snC is the superfine ceramic granular superfine Cu based composites of presoma, it is characterized in that: initial feed is micron-sized Ti
2its volume content of SnC is 3 ~ 50%, and all the other are micron-sized Cu; Final product is submicron order or nano level TiC
0.5even particulate dispersion is in Cu (Sn) matrix, and Cu crystal grain is also refined as submicron order level;
2. one kind with Ti
2snC is the preparation method of the superfine ceramic granular superfine Cu based composites of presoma, it is characterized in that: the method comprises the following steps:
Step 1, batching: by Ti
2snC powder and Cu powder are prepared burden in following ratio:
Ti
2SnC＝3～50vol.％，
Cu＝97～50vol.％；
Wherein Ti
2the granularity of SnC powder is 5 ~ 10 μm, and the granularity of Cu powder is 50 ~ 70 μm;
Step 2, batch mixing: the agate ball adding 200 ~ 400 grams in every 100 grams of above-mentioned batchings, ball milling 2 ~ 4 hours;
Step 3, pre-molding: the mixed powder of certain mass is loaded in steel die, and applies the pressure of 120 ~ 250MPa, make the powder compaction moulding in mould;
Step 4; sintering: the block after shaping is put into High Temperature Furnaces Heating Apparatus; under argon shield; by the temperature rise rate of 10 ~ 30 DEG C/min; furnace temperature is risen to 1100 ~ 1250 DEG C, insulation 30 ~ 60min, then lowers the temperature with the speed of 10 ~ 30 DEG C/min; after cooling, namely obtain superfine ceramic granular superfine Cu based composites.
The beneficial effect that the present invention has:
The present invention is with Ti
2snC is the superfine ceramic granular superfine Cu based composites of presoma, and its product is submicron order or nano level TiC
0.5even particulate dispersion is in Cu (Sn) matrix, and Cu crystal grain is also refined as submicron order level, and its matrix material has the feature of high-strength, high ductibility and wear resistant corrosion resistant simultaneously.Superfine ceramic granular superfine Cu based composites prepared by the present invention, its intensity and wear resistance are with initial Ti
2the increase of SnC content and increasing, ductility is with initial Ti
2the increase of SnC content and reducing; For the application of matrix material of the present invention, suitable Ti can be chosen according to actual operation requirements
2the proportioning raw materials of SnC and Cu; Preparation method of the present invention has the distinguishing features such as technique is simple, easy to operate, cost is low.
Of the present invention with Ti
2snC is that the superfine ceramic granular superfine Cu based composites of presoma has the features such as high-strength height extends, wear-resistant, anti-erosion, can be widely used in the fields such as war industry equipment, high-speed railway, aerospace, as high-strength case shell material etc.
Accompanying drawing explanation
Fig. 1 is of the present invention with Ti
2snC is the superfine ceramic particle TiC of presoma
0.5the stereoscan photograph of Reinforced Cu-Base Composites, Fig. 2 is the stereoscan photograph of the ultra-fine Cu grain matrix exposed after being corroded by ceramic particle.
Embodiment
Embodiment one
Take the Ti that purity is 98.5%, granularity is 5 μm
297.8 grams, the Cu powder that 2.2 grams, SnC powder, purity are 99.8%, granularity is 50 μm; 200 grams of agate balls are added after mixing; ball mill mixing 2 hours; mixed powder is loaded in the steel die of Φ 50; and apply the pressure of 120MPa; make the powder compaction moulding in mould; above-mentioned block is put into High Temperature Furnaces Heating Apparatus; under argon shield, by the temperature rise rate of 10 DEG C/min, furnace temperature is risen to 1100 DEG C; insulation 30min; then with the cooling of the speed of 10 DEG C/min, after cooling, superfine ceramic granular superfine Cu based composites is namely obtained.
Record its TiC of above-mentioned matrix material
0.5particle is about 200 ~ 300nm, and Cu crystal grain is about 0.8 ~ 1 μm, and the yield strength of matrix material is 100MPa, and compressive strength is 295MPa, and unit elongation is 53%.
Embodiment two
Take the Ti that purity is 98.5%, granularity is 10 μm
292.67 grams, the Cu powder that 7.33 grams, SnC powder, purity are 99.8%, granularity is 70 μm; 400 grams of agate balls are added after mixing; ball mill mixing 2 hours; mixed powder is loaded in the steel die of Φ 76; and apply the pressure of 250MPa; make the powder compaction moulding in mould; above-mentioned block is put into High Temperature Furnaces Heating Apparatus; under argon shield, by the temperature rise rate of 20 DEG C/min, furnace temperature is risen to 1150 DEG C; insulation 45min; then with the cooling of the speed of 30 DEG C/min, after cooling, superfine ceramic granular superfine Cu based composites is namely obtained.
Record its TiC of above-mentioned matrix material
0.5particle is about 150 ~ 200nm, and Cu crystal grain is about 0.3 ~ 0.5 μm, and the yield strength of matrix material is 225MPa, and compressive strength is 562MPa, and unit elongation is 46%.
Embodiment three
Take the Ti that purity is 98.5%, granularity is 7 μm
284.88 grams, the Cu powder that 15.12 grams, SnC powder, purity are 99.8%, granularity is 60 μm; 300 grams of agate balls are added after mixing; ball mill mixing 4 hours; mixed powder is loaded in the steel die of Φ 50; and apply the pressure of 200MPa; make the powder compaction moulding in mould; above-mentioned block is put into High Temperature Furnaces Heating Apparatus; under argon shield, by the temperature rise rate of 30 DEG C/min, furnace temperature is risen to 1170 DEG C; insulation 60min; then with the cooling of the speed of 20 DEG C/min, after cooling, superfine ceramic granular superfine Cu based composites is namely obtained.
Record its TiC of above-mentioned matrix material
0.5particle is about 60 ~ 80nm, and Cu crystal grain is about 0.1 ~ 0.2 μm, and the yield strength of matrix material is 335MPa, and compressive strength is 870MPa, and unit elongation is 38%.
Embodiment four
Take the Ti that purity is 98.5%, granularity is 7 μm
276.61 grams, the Cu powder that 23.39 grams, SnC powder, purity are 99.8%, granularity is 50 μm; 300 grams of agate balls are added after mixing; ball mill mixing 4 hours; mixed powder is loaded in the steel die of Φ 50; and apply the pressure of 200MPa; make the powder compaction moulding in mould; above-mentioned block is put into High Temperature Furnaces Heating Apparatus; under argon shield, by the temperature rise rate of 20 DEG C/min, furnace temperature is risen to 1200 DEG C; insulation 40min; then with the cooling of the speed of 20 DEG C/min, after cooling, superfine ceramic granular superfine Cu based composites is namely obtained.
Record its TiC of above-mentioned matrix material
0.5particle is about 80 ~ 100nm, and Cu crystal grain is about 0.2 ~ 0.3 μm, and the yield strength of matrix material is 483MPa, and compressive strength is 1162MPa, and unit elongation is 29%.
Embodiment five
Take the Ti that purity is 98.5%, granularity is 7 μm
258.4 grams, the Cu powder that 41.6 grams, SnC powder, purity are 99.8%, granularity is 50 μm; 400 grams of agate balls are added after mixing; ball mill mixing 4 hours; mixed powder is loaded in the steel die of Φ 76; and apply the pressure of 250MPa; make the powder compaction moulding in mould; above-mentioned block is put into High Temperature Furnaces Heating Apparatus; under argon shield, by the temperature rise rate of 15 DEG C/min, furnace temperature is risen to 1250 DEG C; insulation 30min; then with the cooling of the speed of 10 DEG C/min, after cooling, superfine ceramic granular superfine Cu based composites is namely obtained.
Record its TiC of above-mentioned matrix material
0.5particle is about 150 ~ 200nm, and Cu crystal grain is about 0.5 ~ 0.7 μm, and the yield strength of matrix material is 662MPa, and compressive strength is 1080MPa, and unit elongation is 10.2%.
Claims (2)
1. one kind with Ti
2snC is the superfine ceramic granular superfine Cu based composites of presoma, it is characterized in that: initial feed is micron-sized Ti
2its volume content of SnC is 3 ~ 50%, and all the other are micron-sized Cu; Final product is submicron order or nano level TiC
0.5even particulate dispersion is in Cu (Sn) matrix, and Cu crystal grain is also refined as submicron order level.
2. one kind with Ti
2snC is the preparation method of the superfine ceramic granular superfine Cu based composites of presoma, it is characterized in that: the method comprises the following steps:
Step 1, batching: by Ti
2snC powder and Cu powder are prepared burden in following ratio:
Ti
2SnC＝3～50vol.％，
Cu＝97～50vol.％；
Wherein Ti
2the granularity of SnC powder is 5 ~ 10 μm, and the granularity of Cu powder is 50 ~ 70 μm;
Step 2, batch mixing: the agate ball adding 200 ~ 400 grams in every 100 grams of above-mentioned batchings, ball milling 2 ~ 4 hours;
Step 3, pre-molding: the mixed powder of certain mass is loaded in steel die, and applies the pressure of 120 ~ 250MPa, make the powder compaction moulding in mould;
Step 4; sintering: the block after shaping is put into High Temperature Furnaces Heating Apparatus; under argon shield; by the temperature rise rate of 10 ~ 30 DEG C/min; furnace temperature is risen to 1100 ~ 1250 DEG C, insulation 30 ~ 60min, then lowers the temperature with the speed of 10 ~ 30 DEG C/min; after cooling, namely obtain superfine ceramic granular superfine Cu based composites.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106278272A (en) * | 2016-07-20 | 2017-01-04 | 哈尔滨师范大学 | A kind of Ti2the preparation method of SnC ceramic powder |
| CN113351869A (en) * | 2021-06-02 | 2021-09-07 | 西南交通大学 | Passing through novel V2Preparation of V from SnC ceramic powder2Method for preparing C/Cu (Sn) composite material |
| CN118147483A (en) * | 2024-02-04 | 2024-06-07 | 合肥工业大学 | Y element improving Cu-Ti2Preparation method and application of SnC composite material interface and performance |
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| CN1410568A (en) * | 2001-09-27 | 2003-04-16 | 中国科学院金属研究所 | Tin titanium carbide granule reinforced copper base composite material and its preparation method |
| CN1804077A (en) * | 2005-01-12 | 2006-07-19 | 中国科学院金属研究所 | In-situ produced titanium carbide dispersion strengthening copper based composite material and method for preparing the same |
| CN102242302A (en) * | 2011-06-28 | 2011-11-16 | 钢铁研究总院 | Preparation method of layered ternary ceramic reinforced copper composite material |
| CN103924143A (en) * | 2014-05-07 | 2014-07-16 | 攀枝花学院 | Ti2SnC/Sn/Co electrical contact materials and manufacturing method and application thereof |
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2015
- 2015-06-30 CN CN201510385701.6A patent/CN104911385A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410568A (en) * | 2001-09-27 | 2003-04-16 | 中国科学院金属研究所 | Tin titanium carbide granule reinforced copper base composite material and its preparation method |
| CN1804077A (en) * | 2005-01-12 | 2006-07-19 | 中国科学院金属研究所 | In-situ produced titanium carbide dispersion strengthening copper based composite material and method for preparing the same |
| CN102242302A (en) * | 2011-06-28 | 2011-11-16 | 钢铁研究总院 | Preparation method of layered ternary ceramic reinforced copper composite material |
| CN103924143A (en) * | 2014-05-07 | 2014-07-16 | 攀枝花学院 | Ti2SnC/Sn/Co electrical contact materials and manufacturing method and application thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106278272A (en) * | 2016-07-20 | 2017-01-04 | 哈尔滨师范大学 | A kind of Ti2the preparation method of SnC ceramic powder |
| CN113351869A (en) * | 2021-06-02 | 2021-09-07 | 西南交通大学 | Passing through novel V2Preparation of V from SnC ceramic powder2Method for preparing C/Cu (Sn) composite material |
| CN118147483A (en) * | 2024-02-04 | 2024-06-07 | 合肥工业大学 | Y element improving Cu-Ti2Preparation method and application of SnC composite material interface and performance |
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