Nano-diamond reinforced titanium-based composite material

A titanium-based composite material and nano-diamond technology, which is applied in the fields of nano-diamond reinforced titanium-based composite materials and titanium carbide-reinforced titanium-based composite materials, can solve problems such as imperfect research, and achieve improved dynamic mechanical properties and high dynamic strength. Effect

Inactive Publication Date: 2016-07-06
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the current research on the mechanical properties of titanium matrix composites focuses on quasi-static tension and quasi-static compression, and the research on the dynamic mechanical behavior of titanium matrix composites is not perfect.

Method used

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  • Nano-diamond reinforced titanium-based composite material
  • Nano-diamond reinforced titanium-based composite material
  • Nano-diamond reinforced titanium-based composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Powder treatment: take by weighing 0.234g of nano-diamond powder and 29.766g of titanium powder to obtain 30g mixed powder, wherein the volume percentage of nano-diamond powder is 1.8%, put the mixed powder into a ball mill jar, add dehydrated alcohol As a dispersion medium, ZrO with a diameter of 3 mm was added to the ball mill jar 2 Balls 300g to make ZrO 2 The mass ratio of the balls to the mixed powder is 10:1; the ball mill jar is placed on a planetary ball mill, run at a speed of 300r / min, and the ball mill is mixed for 6 hours to obtain a slurry, which is removed by a rotary evaporator at 65r / min at 75°C absolute ethanol in the slurry to obtain a powder; dry the powder in a vacuum oven at 100°C for 12 hours to obtain a dry powder;

[0047] (2) Hot-press sintering: Grind the dry powder to get a uniformly mixed powder, put it into a graphite mold, put it into a hot-press furnace with argon protection atmosphere for hot-press sintering, raise the temperature to...

Embodiment 2

[0052] (1) Powder treatment: take by weighing 0.234g of nano-diamond powder and 29.766g of titanium powder to obtain 30g mixed powder, wherein the volume percentage of nano-diamond powder is 1.8%, put the mixed powder into a ball mill jar, add dehydrated alcohol As a dispersion medium, ZrO with a diameter of 3 mm was added to the tank 2 Balls 300g to make ZrO 2The mass ratio of the balls to the mixed powder is 10:1; the ball mill jar is placed on a planetary ball mill, run at a speed of 400r / min, and the ball mill is mixed for 2 hours to obtain a slurry, which is removed by a rotary evaporator at 65r / min at 75°C absolute ethanol in the slurry to obtain a powder; dry the powder in a vacuum oven at 100°C for 12 hours to obtain a dry powder;

[0053] (2) Hot-press sintering: Grind the dry powder to get a uniformly mixed powder, put it into a graphite mold, put it into a hot-press furnace with argon protection atmosphere for hot-press sintering, raise the temperature to 1300°C, t...

Embodiment 3

[0058] (1) Powder treatment: take by weighing 0.234g of nano-diamond powder and 29.766g of titanium powder to obtain 30g mixed powder, wherein the volume percentage of nano-diamond powder is 1.8%, the mixed powder is put into a ball mill jar, and dehydrated alcohol is added as dispersion medium. Add ZrO with a diameter of 3mm to the tank 2 Ceramic ball 300g, ZrO 2 The mass ratio of the balls to the mixed powder is 10:1; the ball mill jar is placed on a planetary ball mill, run at a speed of 400r / min, and the ball mill is mixed for 6 hours to obtain a slurry, which is removed by a rotary evaporator at 65r / min at 75°C absolute ethanol in the slurry to obtain a powder; dry the powder in a vacuum oven at 100°C for 12 hours to obtain a dry powder;

[0059] (2) Hot-press sintering: Grind the dry powder to get a uniformly mixed powder, put it into a graphite mold, put it into a hot-press furnace with argon protection atmosphere for hot-press sintering, raise the temperature to 900°...

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Abstract

The invention relates to a nano-diamond reinforced titanium-based composite material, and belongs to the technical field of composite materials. The nano-diamond reinforced titanium-based composite material is prepared by the following steps of: (1) by taking nano-diamond powder and titanium powder as raw materials, performing ball-milling for more than or equal to 2 hours at a rotation speed of 300r / minute or above, uniformly mixing so as to obtain slurry, removing a ball-milling dispersion medium from the slurry, and performing vacuum drying, thereby obtaining dried powder, wherein the diameter of a grinding ball is 3-10mm, and the volume percentage of the nano-diamond powder is 1-1.8%; (2) feeding the dried powder into a mold, performing hot pressed sintering under an anaerobic condition, heating to 900-1300 DEG C, increasing the pressure to 30-50MPa, and keeping the temperature and the pressure for 1 hour, thereby obtaining the composite material. The composite material is very high in dynamic strength.

Description

technical field [0001] The present invention relates to a nano-diamond-reinforced titanium (Ti)-based composite material, in particular to a titanium carbide-reinforced titanium-based composite material synthesized in situ by nano-diamond powder and titanium powder, the composite material has high dynamic Strength belongs to the technical field of composite materials. Background technique [0002] Metal matrix composites have been widely valued due to their properties of metals and comprehensive properties of high specific strength, high specific rigidity, heat resistance and wear resistance. Among metal matrix composite materials, titanium and titanium alloys are favored for their light specific gravity, corrosion resistance, and high oxidation resistance. Compared with fiber-reinforced titanium-based composites, particle-reinforced titanium-based composites have stronger designability in performance and function, and the manufacturing process technology is relatively econ...

Claims

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Application Information

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IPC IPC(8): C22C1/05C22C14/00C22C26/00B22F3/14
CPCC22C1/05B22F3/14C22C14/00C22C26/00
Inventor 张洪梅傅铸杰穆啸楠范群波
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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