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

In-situ produced titanium carbide dispersion strengthening copper based composite material and method for preparing the same

A technology of dispersion-strengthening copper and in-situ generation, which is applied in the field of ceramic particle reinforced metal matrix composite materials and its preparation, can solve the problems of small increase in copper strength and weak interface bonding strength, and achieve high hardness, improve interface bonding, simple craftsmanship

Inactive Publication Date: 2006-07-19
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
View PDF0 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Document 2: In Key Engineering Materials (Key Engineering Materials 189, 542(2001)) et al reported that adding conductive carbide particles to copper can maintain the high conductivity of copper while increasing the strength of copper, but because the interface bonding strength between carbide and copper is weak, the addition of carbide particles has a significant impact on copper strength. little improvement

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
  • In-situ produced titanium carbide dispersion strengthening copper based composite material and method for preparing the same
  • In-situ produced titanium carbide dispersion strengthening copper based composite material and method for preparing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Titanium carbide dispersion-strengthened copper-based composites with a series of components were synthesized by decomposing tin-titanium carbide in situ to generate titanium carbide particles dispersed in the copper matrix. Using tin titanium carbide powder as raw material, the tin titanium carbide powder is purified by hot hydrochloric acid at a temperature of 90°C to remove the elemental tin, and then ball milled for 20 hours by planetary ball milling at a speed of 300 rpm to obtain an average particle size of 0.5 Micron ultrafine powder.

[0018] 1.62 grams of tin-titanium carbide powder with an average particle size of 0.5 microns and 138.38 grams of copper powder with an average particle size of 30 microns were ball milled for 5 hours in a ball mill using a planetary ball milling method, and then loaded into a graphite mold It is formed by medium cold pressing, and the applied pressure is 10MPa, and it is put into a hot pressing furnace for hot pressing and sinter...

Embodiment 2

[0020] The difference from Example 1 is:

[0021] Using tin titanium carbide powder as raw material, the tin titanium carbide powder is purified by hot hydrochloric acid at a temperature of 100°C to remove elemental tin, and then ball milled by planetary ball milling method for 12 hours, the ball mill speed is 400 rpm, and the average particle size is 1 Micron ultrafine powder.

[0022] 15.96 grams of tin titanium carbide powder purified by hot hydrochloric acid with an average particle size of 1 micron and 124.04 grams of copper powder with an average particle size of 20 microns were ball milled in a ball mill jar for 10 hours by planetary ball milling, and then loaded into a graphite mold It is formed by medium cold pressing, and the applied pressure is 15MPa, and it is put into a hot pressing furnace for hot pressing and sintering. The heating rate is 8°C / min, heated to 800°C and kept for 3 hours, while the pressure is gradually increased to 30MPa. The resulting composite...

Embodiment 3

[0024] The difference from Example 1 is:

[0025] Using tin titanium carbide powder as raw material, the tin titanium carbide powder is purified by hot hydrochloric acid at 80°C to remove elemental tin, and then ball milled by planetary ball milling method for 10 hours, the ball mill speed is 250 rpm, and the average particle size is 2 Micron ultrafine powder.

[0026] 31.44 grams of tin titanium carbide powder purified by hot hydrochloric acid with an average particle size of 2 microns and 108.56 grams of copper powder with an average particle size of 40 microns were ball-milled for 15 hours in a ball mill using a drum milling method, and then loaded into a graphite mold It is formed by intermediate cold pressing, and the applied pressure is 5MPa, and it is put into a hot pressing furnace for hot pressing and sintering. The heating rate is 5°C / min, heated to 900°C and kept for 1 hour, while the pressure is gradually increased to 50MPa. The resulting composite was then annea...

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
Particle sizeaaaaaaaaaa
Densityaaaaaaaaaa
Yield strengthaaaaaaaaaa
Login to View More

Abstract

The preparation method to decompose Ti2SnC dispersed in Cu-matrix and in-situ generate 1-20vol.% TiCx dispersion-strengthened Cu-base series composite material comprises: mixing Ti2SnC ultrafine powder with copper as given ratio to grind for 5-15h and then load into graphite mould; cold pressing on 5-15MPa; sintering in hot-pressing furnace with protective atmosphere for 0.5-3h on condition of 30-50MPa and 800-900Deg; finally, annealing at 950-1050Deg for 2-8h. This invention can prepare the composite with high hardness and strength with simple technique.

Description

technical field [0001] The invention relates to a ceramic particle reinforced metal matrix composite material and a preparation method thereof, in particular to a titanium carbide dispersion-strengthened copper matrix composite material prepared in situ by decomposing tin-titanium carbide and a preparation method thereof. Background technique [0002] Copper is widely used in various fields including navigation, aviation, aerospace, electronics and magnetism, such as electrical contacts, Brushes, active cooling components, electronic components, electrodes, friction materials for low-speed, heavy-duty applications. However, its low strength and hardness limit its wide application. Document 1: Zwilsky et al. reported in Transaction of the Metallurgical Society of AIME. 221, 371 (1961) that dispersing alumina ceramic particles in copper can significantly increase the strength of copper. However, due to the low electrical conductivity of alumina ceramics, it significantly red...

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
IPC IPC(8): C22C11/00C22C1/05B22F9/04C22F1/08C22F1/02
Inventor 周延春吴进怡
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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