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Ti3C2/Cu-Al ceramet material and its preparation method

A cermet, cu-al technology, applied in the field of Ti3C2/Cu-Al cermet material and its preparation, to achieve the effect of simple preparation process

Inactive Publication Date: 2006-02-15
北京竞和科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far there is no report on the preparation of high-performance cermet materials using this new type of ceramic.

Method used

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  • Ti3C2/Cu-Al ceramet material and its preparation method
  • Ti3C2/Cu-Al ceramet material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0030] Weigh Ti with a purity of 98.4% 3 AlC 2 Powder 0.765 grams, purity 14.42 grams of Cu powder of 99.9%, add 11 milliliters of absolute ethanol and 32 grams of agate balls after mixing, ball mill and mix for 2 hours, then dry, grind, pass 100 mesh sieve, under 140MPa pressure Cold pressed into a strip-shaped green body, put into a graphite mold in a high-temperature furnace, protected by argon, heat up to 1100°C at a rate of 40°C / min, hold for 20 minutes, and lower the furnace temperature at a rate of 10-15°C / min to 60°C, the Ti of the present invention can be obtained 3 C 2 / Cu-Al cermet material; where Ti 3 C 2 The content is about 0.57 grams, and the rest is Cu and Al.

[0031] the above Ti 3 C 2 / Cu-Al cermet material, processed into a sample of 3mm×4mm×36mm, and subjected to a three-point bending strength test with a span of 30mm; the measured breaking strength was 752.30MPa, and the maximum deformation rate was 8.5%.

Embodiment approach 2

[0033] Weigh Ti with a purity of 98.4% 3 AlC 2 2.3 grams of powder, 11.2 grams of Cu powder with a purity of 99.9%, after mixing, add 11 milliliters of absolute ethanol and 32 grams of agate balls, ball mill and mix for 2.5 hours, then dry, grind, pass through a 100-mesh sieve, and place under a pressure of 150 MPa Cold press into a strip-shaped green body, put it into a graphite mold in a high-temperature furnace, protect it with argon, raise the temperature to 1130°C at a rate of 30°C / min, keep it warm for 25min, and lower the furnace temperature at a rate of 10-15°C / min to 60°C, the Ti of the present invention can be obtained 3 C 2 / Cu-Al cermet material; where Ti 3 C 2 The content of is about 0.98 grams, and the rest is Cu and Al.

[0034] the above Ti 3 C 2 / Cu-Al cermet material, processed into a 3mm×4mm×36mm sample, subjected to a three-point bending strength test with a span of 30mm; the measured breaking strength was 832.70MPa, and the maximum deformation rate ...

Embodiment approach 3

[0036] Weigh Ti with a purity of 98.4% 3 AlC 23.83 grams of powder, 8.01 grams of Cu powder with a purity of 99.9%, after mixing, add 11 milliliters of absolute ethanol and 32 grams of agate balls, ball mill and mix the mixture for 3 hours, then dry, grind, pass through a 100-mesh sieve, and place under a pressure of 160 MPa Cold press into a strip-shaped green body, put it into a graphite mold in a high-temperature furnace, protect it with argon, raise the temperature to 1150°C at a rate of 30°C / min, keep it for 30 minutes, and lower the furnace temperature at a rate of 10-15°C / min to 60°C, the Ti of the present invention can be obtained 3 C 2 / Cu-Al cermet material; where Ti 3 C 2 The content of is about 2.93 grams, and the rest is Cu and Al.

[0037] the above Ti 3 C 2 / Cu-Al cermet material, processed into a 3mm×4mm×36mm sample, subjected to a three-point bending strength test with a span of 30mm; the measured breaking strength was 807.75MPa, and the maximum deforma...

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Abstract

The Ti3C2 / Cu-Al ceramic material with 750~985MPa bending strength and 1.7~8.5% maximum rate of deformation comprises 3.825~62wt% Ti3C2, 27.82~95.54wt% Cu, and 0.63~10.12wt% Al and fit to mechanism, electrical engineering and other fields. The opposite preparation method relates to, matching material with 5~81wt% Ti3AlC2 and 19~95wt% Cu; grinding, drying, cold-press moulding on 140~180MPa; sintering on normal pressure and 1100~1180Deg; protecting by argon gas; holding temperature for 10~30min; finally, one obtains the said product.

Description

technical field [0001] The present invention relates to a kind of Ti 3 C 2 / Cu-Al cermet material and its preparation method. Background technique [0002] Cermet materials composed of one or several ceramic phases and metal phases or alloys not only have the good electrical and thermal conductivity, high strength and toughness of metals, but also have the high temperature resistance, corrosion resistance and wear resistance of ceramics. And other characteristics, it has a wide range of uses in the fields of electrical engineering, chemical industry, transportation, machinery and so on. For example, alumina / tungsten / chromium materials used as missile nozzle bushings, titanium carbide / cobalt (nickel, chromium) materials used as turbine blades or cutting tools, tin oxide / silver materials used as electrical contacts. [0003] Titanium Aluminum Carbon (Ti 3 AlC 2 ) is a new type of ternary carbide ceramics, first discovered by M.A.Pietzka and J.C.Schuster and publicly repor...

Claims

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Application Information

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IPC IPC(8): C22C29/10C22C1/05C22C9/00
Inventor 翟洪祥艾明星黄振莺周洋张志力李世波
Owner 北京竞和科技有限公司
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