Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method for short carbon fiber/copper composite material

A short carbon fiber and composite material technology, applied in the field of fiber/copper composite material preparation, can solve the problems of long time period, high temperature requirements, and large fiber damage, so as to reduce energy waste, avoid environmental pollution, and fiber damage less effect

Active Publication Date: 2017-10-27
CENT SOUTH UNIV
View PDF3 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most people use mechanical ball milling to mix the fibers to cause greater damage, while electric stirring is easy to agglomerate and not easy to disperse; in addition, electroless copper or titanium plating on the fibers will produce more waste chemicals and pollute the environment; Traditional hot pressing sintering requires high temperature and long time period
[0005] For directly adding a small amount of Ti powder to wet the C / Cu interface, and then using spark plasma low-temperature rapid sintering to prepare short carbon fiber / copper matrix composites, this method has not been reported in the existing materials.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method for short carbon fiber/copper composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042](1) Short carbon fibers with a diameter of 7 μm and a length of 1 mm were put into a vacuum high-temperature furnace at a temperature of 1200° C., and kept in a vacuum environment for 2 hours.

[0043] (2) The Cu / Ti powder is milled by wet method, the milling time is 8 hours, and the ball-to-alcohol ratio is 2:1:0.3; after vacuum drying, it is mixed with 1mm short carbon fiber with a V-shaped agitator, and the V-shaped mixed The material speed was 90r / min, and the mixture was stirred for 5 hours; a composite powder was uniformly mixed with short carbon fibers and metal powder, containing 9% Ti, 3% short carbon fibers, and copper as the balance.

[0044] (3) During the discharge plasma sintering process, first use a Roots pump to evacuate with a vacuum degree of 0.05mbar, then pre-press at a pressure of 30MPa for 20min, then raise the temperature to 790°C at a speed of 100°C / min and a pressure of 5MPa, and keep warm The time is 10 minutes; after the sintering is completed...

Embodiment 2

[0047] (1) Short carbon fibers with a diameter of 7 μm and a length of 1 mm were put into a vacuum high-temperature furnace at a temperature of 1200° C., and kept in a vacuum environment for 2 hours.

[0048] (2) The Cu / Ti powder is milled by wet method, the milling time is 8 hours, and the ball-to-alcohol ratio is 2:1:0.3; after vacuum drying, it is mixed with 1mm short carbon fiber with a V-shaped agitator, and the V-shaped mixed The material speed was 90r / min, and the mixture was stirred for 5 hours; a composite powder was uniformly mixed with short carbon fibers and metal powder, containing 9% Ti, 3% short carbon fibers, and copper as the balance.

[0049] (3) During the discharge plasma sintering process, first use a Roots pump to evacuate with a vacuum degree of 0.05mbar, then pre-press at a pressure of 30MPa for 20min, then raise the temperature to 820°C at a speed of 100°C / min and a pressure of 5MPa, and keep warm The time is 10 minutes; after the sintering is complete...

Embodiment 3

[0052] (1) Short carbon fibers with a diameter of 7 μm and a length of 1 mm were put into a vacuum high-temperature furnace at a temperature of 1200° C., and kept in a vacuum environment for 2 hours.

[0053] (2) The Cu / Ti powder is milled by wet method, the milling time is 8 hours, and the ball-to-alcohol ratio is 2:1:0.3; after vacuum drying, it is mixed with 1mm short carbon fiber with a V-shaped agitator, and the V-shaped mixed The material speed was 90r / min, and the mixture was stirred for 5 hours; a composite powder was uniformly mixed with short carbon fibers and metal powder, containing 9% Ti, 3% short carbon fibers, and copper as the balance.

[0054] (3) In the process of spark plasma sintering, first use a Roots pump to evacuate, the vacuum degree is 0.05mbar, then pre-press at a pressure of 30MPa for 20min, and then raise the temperature to 850℃ at a speed of 100℃ / min, and the pressure is 5MPa, and keep warm The time is 10 minutes; after the sintering is completed,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
diameteraaaaaaaaaa
electrical resistivityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation process for a short carbon fiber / copper composite material, in particular to a preparation method for a 1mm short carbon fiber reinforced Cu matrix composite material. The preparation method comprises the following steps: uniformly mixing a copper source, a titanium source and short carbon fibers which are uniformly mixed, and adopting discharge plasma sintering to obtain the short carbon fiber / copper composite material. Sintering parameters are that a temperature is 790-880 DEG C, temperature keeping time is 10-30 minutes, and sintering pressure is 5-25 MPa; copper in the copper source is zero valence; and titanium in the titanium source is zero valence. The preparation method is low in preparation process and is low in energy consumption, and the obtained product is excellent in performance.

Description

technical field [0001] The invention relates to a preparation method of a fiber / copper composite material, in particular to a preparation method of a 1mm short carbon fiber reinforced Cu matrix composite material. Background technique [0002] Copper has excellent electrical and thermal conductivity, but pure copper has low strength. Carbon fiber has high specific modulus, specific strength and good self-lubrication. Short carbon fiber reinforced copper matrix composites have a series of advantages such as good electrical conductivity, thermal conductivity, excellent mechanical properties, wear resistance, high temperature resistance, arc ablation resistance and good self-lubrication, and are now used as a metal Matrix composites have been widely used in machinery manufacturing, aerospace and other fields. [0003] Due to the good designability of this type of material, different performance indicators can be obtained by controlling the type, content and distribution of ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/14C22C49/02C22C49/14C22C101/10
CPCC22C47/14C22C49/02C22C49/14
Inventor 张福勤陈达夏莉红汤迁赵炜康武世文
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com