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Preparation method of high-strength Ti-ZrO2-B4C system composite material

A technology of ti-zro2-b4c and composite materials, which is applied in the field of preparation of high-strength Ti-ZrO2-B4C system composite materials, can solve the problems of low strength and cannot meet the requirements of use, etc., and achieves excellent performance, hardness and compressive strength. Good results

Active Publication Date: 2021-03-19
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the invention is to provide a high-strength Ti-ZrO 2 -B 4 The preparation method of C system composite material solves the existing Ti-B 4 C-system composite materials have low strength in practical applications and cannot meet higher requirements for use.

Method used

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  • Preparation method of high-strength Ti-ZrO2-B4C system composite material
  • Preparation method of high-strength Ti-ZrO2-B4C system composite material
  • Preparation method of high-strength Ti-ZrO2-B4C system composite material

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preparation example Construction

[0028] The invention provides a high-strength Ti-ZrO 2 -B 4 The preparation method of C system composite material specifically comprises the following steps:

[0029] Step 1, mix the powder

[0030] According to the mass fraction of 0.1%-1.1% in Ti-B 4 C powder is added with the third component ZrO 2 powder, where B 4 C powder mass accounts for 1.1%-2.8% of the total powder mass, pure Ti powder particle size is 20-30μm, B 4 C powder particle size is 0.5-1.0μm, ZrO 2 The powder particle size is 1-3μm. Weigh the required powder and the zirconia balls used for powder mixing. The ratio of balls to materials is 1-3:1, the ratio of large balls to small balls is 3-4:1, the diameter of large balls is 9-11mm, and the diameter of small balls is 9-11mm. The diameter is 5-6mm; the three-dimensional vibrating powder mixer is used for powder mixing, and the frequency of the three-dimensional vibrating powder mixer is 30-60Hz. First, pure Ti powder and B 4 Add 0.04%-0.12% mass fracti...

Embodiment 1

[0038] The invention provides a high-strength Ti-ZrO 2 -B4 The preparation method of C system composite material specifically comprises the following steps:

[0039] Step 1, mix the powder

[0040] Prepare the required raw powder, pure Ti powder with a particle size of 20 μm, and B with a particle size of 0.5 μm 4 C powder, ZrO with a particle size of 1 μm 2 powder; respectively weigh 49.52g of pure Ti powder, B 4 C powder 0.81g, ZrO 2 0.11g of powder and the zirconia balls to be used, put the weighed powder and zirconia balls aside; the ratio of balls to materials is 2:1, the ratio of large balls to small balls is 4:1, and the diameter of large balls is 9-11mm , the diameter of the ball is 5-6mm; the three-dimensional vibrating powder mixer is used for powder mixing, and the frequency of the three-dimensional vibrating powder mixer is 50Hz. First, pure Ti powder and B 4 Add 0.08% mass fraction of vacuum pump oil to C powder, mix the powder for 1 hour, and then add ZrO pr...

Embodiment 2

[0049] The invention provides a high-strength Ti-ZrO 2 -B 4 The preparation method of C system composite material specifically comprises the following steps:

[0050] Step 1, mix the powder

[0051] Prepare the required raw powder, pure Ti powder with a particle size of 20 μm, and B with a particle size of 0.5 μm 4 C powder, ZrO with a particle size of 1 μm 2 Powder; respectively weigh 49.33g of pure Ti powder, B 4 C powder 0.81g, ZrO 2 0.30g of powder and the zirconia balls to be used, put the weighed powder and zirconia balls aside; the ratio of balls to materials is 2:1, the ratio of large balls to small balls is 4:1, and the diameter of large balls is 9-11mm , the diameter of the ball is 5-6mm; the three-dimensional vibrating powder mixer is used for powder mixing, and the frequency of the three-dimensional vibrating powder mixer is 50Hz. First, pure Ti powder and B 4 Add 0.08% mass fraction of vacuum pump oil to C powder, mix the powder for 1 hour, and then add ZrO ...

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Abstract

The invention provides a preparation method of a high-strength Ti-ZrO2-B4C system composite material. The preparation method comprises the following steps: firstly, mixing pure Ti powder with B4C powder and ZrO2 powder by using a three-dimensional vibration powder mixing machine, then carrying out compression molding in a steel mold, and finally, carrying out sintering by using a vacuum hot-pressing sintering furnace; and placing a blank obtained by compression molding into the sintering furnace, carrying out sintering for 3 hours at the sintering temperature of 1200 DEG C, cooling the productto room temperature along with the furnace, and taking out the sintered Ti-ZrO2-B4C system composite material. According to the preparation method, ZrO2 is added into a traditional pure Ti-B4C systemcomposite material, the hardness and strength of the prepared Ti-ZrO2-B4C system composite material are improved to a certain extent, the performance is more excellent, and the Ti-ZrO2-B4C system composite material can be better applied to the fields of engineering, automobile industry, aerospace and the like and is suitable for industries with higher performance requirements.

Description

technical field [0001] The invention belongs to the technical field of titanium-based composite materials, in particular to a high-strength Ti-ZrO 2 -B 4 Preparation method of C system composite material. Background technique [0002] Titanium is an important structural metal developed in the 1950s. It is widely distributed in nature, and its content in the earth's crust reaches about 0.6%. Many countries such as the United States, Japan, Russia and China have carried out a lot of research and development on titanium and titanium alloys, which have been used in many applications. However, titanium alloys have disadvantages such as high production costs, low hardness and low stiffness. To some extent, it limits its scope of application. Therefore, in order to overcome these limitations, the compounding of materials has become an inevitable trend. [0003] Titanium-based composite materials refer to composite materials with more superior properties by adding one or more re...

Claims

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Application Information

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IPC IPC(8): C22C1/05C22C14/00C22C32/00B22F3/14
CPCC22C1/05C22C14/00C22C32/0005B22F3/14
Inventor 贾磊宋伟吕振林
Owner XIAN UNIV OF TECH
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