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Carbon fiber reinforced titanium alloy compound material and preparation method thereof

A composite material and carbon fiber technology, applied in the field of metallurgy, can solve the problems of difficult to control carbon fiber arrangement, carbon fiber weight loss, weight loss, etc., and achieve the effects of good interface bonding, improved bonding strength, and high specific modulus.

Inactive Publication Date: 2013-02-06
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, short carbon fiber reinforced titanium alloy composites can be prepared, but the effect of short fibers on improving its shear resistance is not significant and the arrangement of carbon fibers is difficult to control
[0005] Carbon fiber will lose weight when heated above 450°C, but this temperature cannot reach the powder metallurgy temperature of titanium alloy, and because of its hydrophobicity and surface inertness, it cannot be directly composited with titanium alloy through powder metallurgy; because pure tungsten will combine with carbon fiber The reaction produces tungsten carbide, and the method of directly depositing pure tungsten on the surface of carbon fiber by vapor deposition will cause the carbon fiber to lose weight at high temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1. Firstly, the carbon fiber is degummed by air burning at 300°C, and then coarsened with a coarsening solution consisting of nitric acid, potassium dichromate, hydrogen peroxide and ammonium persulfate, and then 10% NaOH solution is used to process it. and using SnCl 2 Sensitization is performed as a sensitization solution, and then the composition is PdCl 2 Activate with AgCl activation solution, and finally use 20g / L sodium hypophosphite solution to soak the carbon fiber for 1-3 minutes to complete the reduction process;

[0022] 2. The carbon fiber is treated by electroless copper plating. The bath composition contains CuSO 4 , HCHO, NaKC 4 h 4 o 6 . The pH value of the plating solution is 12.7, the plating temperature is 60°C, and the plating time is 20 minutes. In order to maintain the independent and uniform distribution state during the carbon fiber plating process, the electroless copper plating solution is uniformly dispersed by ultrasonic oscillation m...

Embodiment 2

[0027] 1. Firstly, the carbon fiber is degummed by air burning at 300°C, and then coarsened with a coarsening solution consisting of nitric acid, potassium dichromate, hydrogen peroxide and ammonium persulfate, and then 10% NaOH solution is used to process it. and using SnCl 2 Sensitization is performed as a sensitization solution, and then the composition is PdCl 2 Activate with AgCl activation solution, and finally use 20g / L sodium hypophosphite solution to soak the carbon fiber for 1-3 minutes to complete the reduction process;

[0028] 2. The carbon fiber is treated by electroless copper plating. The bath composition contains CuSO 4 , HCHO, NaKC 4 h 4 o 6 . The pH value of the plating solution is 12.7, the plating temperature is 60°C, and the plating time is 20 minutes. In order to maintain the independent and uniform distribution state during the carbon fiber plating process, the electroless copper plating solution is uniformly dispersed by ultrasonic oscillation m...

Embodiment 3

[0032] 1. Firstly, the carbon fiber is degummed by air burning at 300°C, and then coarsened with a coarsening solution consisting of nitric acid, potassium dichromate, hydrogen peroxide and ammonium persulfate, and then 10% NaOH solution is used to process it. and using SnCl 2 Sensitization is performed as a sensitization solution, and then the composition is PdCl 2 Activate with AgCl activation solution, and finally use 20g / L sodium hypophosphite solution to soak the carbon fiber for 1-3 minutes to complete the reduction process;

[0033] 2. The carbon fiber is treated by electroless copper plating. The bath composition contains CuSO 4 , HCHO, NaKC 4 h 4 o 6 . The pH value of the plating solution is 12.7, the plating temperature is 60°C, and the plating time is 20 minutes. In order to maintain the independent and uniform distribution state during the carbon fiber plating process, the electroless copper plating solution is uniformly dispersed by ultrasonic oscillation m...

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Abstract

The invention discloses a carbon fiber reinforced titanium alloy compound material and a preparation method thereof. The preparation method comprises the steps as follows: 1, preprocessing a carbon fiber; 2, conducting chemical copper plating on the surface of the carbon fiber, namely coating copper onto the surface of the carbon fiber by utilizing a chemical plating method; 3, conducting chemical vapor phase deposition on pure tungsten, namely conducting chemical vapor phase deposition on the surface of the copper-coated carbon fiber to obtain a tungsten deposition layer; 4, cutting according to the design requirement to obtain the carbon fiber with the proper length; and 5, mixing powder according to the design requirement of titanium alloy content, placing a mixture and the carbon fiber into a pressing mould for hot-press forming, and sintering to obtain the carbon fiber reinforced titanium alloy compound material in the required shape at last. According to the carbon fiber reinforced titanium alloy compound material prepared by the method, the compositionality is good, the titanium alloy content is adjustable, the carbon fiber distribution is controllable, and the carbon fiber is not decarburized. The carbon fiber reinforced titanium alloy compound material is high in specific modulus, low in density, high in specific strength and impact toughness and good in adiabatic shear failure resistance, and is a high-performance structural material.

Description

technical field [0001] The invention relates to a preparation process of carbon fiber copper plating and vapor deposition of pure tungsten and metal composite materials on the surface of copper plating, belongs to the field of metallurgy technology, and in particular relates to a preparation method of carbon fiber reinforced titanium alloy composite materials. Background technique [0002] Carbon fiber reinforced titanium alloy composite material is composed of titanium alloy with high specific strength and carbon fiber with high specific modulus and tensile resistance. It has the advantages of low density, high specific strength, tensile resistance and high specific modulus. Its mechanical properties can be adjusted within a certain range by adjusting the distribution of carbon fibers in the titanium alloy and controlling the composition of the titanium alloy. It is a high-performance lightweight structural material. [0003] At present, when using carbon fiber and metal ma...

Claims

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Application Information

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IPC IPC(8): C22C47/04C22C47/14C22C49/14C22C49/11C22C121/02C22C101/10
Inventor 刘金旭骆雨萌李树奎李沐吴腾腾杨秋榕王迎春
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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