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

Low temperature glass phase enhanced SiCp/Cu composite material and preparation method thereof

A low-temperature glass and composite material technology, applied in the field of ceramic reinforced metal matrix composite materials, can solve the problems of affecting the comprehensive performance of Cu composite materials, prone to interfacial reaction, limited comprehensive performance, etc., to achieve improved interface bonding characteristics, good comprehensive mechanics performance, combined with good results

Active Publication Date: 2015-01-21
ZHENGZHOU UNIVERSITY OF AERONAUTICS
View PDF2 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difference in the lattice types of SiC and Cu, there are a series of problems such as non-wetting and poor dispersion uniformity between the molten Cu and SiC phases, and interfacial reactions are prone to occur during the sintering process of the composite material, which seriously affects the SiC p Improvement of Comprehensive Properties of / Cu Composite Materials
At present, there are a large number of literature studies on the interface modification of ceramic-metal composites to improve the interface bonding and dispersion uniformity of the silicon carbide particle reinforcement phase and the metal matrix, but the overall performance improvement is relatively limited

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
  • Low temperature glass phase enhanced SiCp/Cu composite material and preparation method thereof
  • Low temperature glass phase enhanced SiCp/Cu composite material and preparation method thereof
  • Low temperature glass phase enhanced SiCp/Cu composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In this embodiment, SiC reinforced by low temperature glass phase p / Cu composite material, in which SiC particles wrapped by glass phase are dispersed in Cu matrix, among which SiC, SiO 2 The volume ratio of Cu and Cu is 1:0.6:3, SiO in the glass phase 2 with K 2 The molar ratio of O is 3 and the size of SiC particles is 10 μm.

[0035] In this embodiment, SiC reinforced by low temperature glass phase p The preparation method of / Cu composite material, comprises the following steps:

[0036] (1) According to the volume ratio of ester, alcohol and water as 23:35:3, disperse tetraethyl orthosilicate (TEOS) and α-SiC in ethanol solution, adjust the pH of the solution to 2 with citric acid, Stir magnetically at 45°C for 3 hours to completely hydrolyze tetraethyl orthosilicate to SiO 2 Form a sol, then use ammonia water to adjust the pH of the solution to 8, continue magnetic stirring for 0.1 hour to obtain a composite gel, vacuum filter, blow dry at 80°C for 2 hours, ...

Embodiment 2

[0043] In this embodiment, SiC reinforced by low temperature glass phase p / Cu composite material, in which SiC particles wrapped by glass phase are dispersed in Cu matrix, among which SiC, SiO 2 The volume ratio of Cu and Cu is 1:0.2:2, SiO in the glass phase 2 with K 2 The molar ratio of O is 2 and the size of SiC particles is 10 μm.

[0044] In this embodiment, SiC reinforced by low temperature glass phase p The preparation method of / Cu composite material, comprises the following steps:

[0045] (1) According to the volume ratio of ester, alcohol and water as 23:35:3, disperse tetraethyl orthosilicate (TEOS) and α-SiC in ethanol solution, adjust the pH of the solution to 2 with citric acid, Stir magnetically at 30°C for 6 hours to completely hydrolyze tetraethyl orthosilicate to SiO 2 Form a sol, then use ammonia water to adjust the pH of the solution to 9, continue magnetic stirring for 1 hour to obtain a composite gel, vacuum filter, blow dry at 75°C for 2.5 hours, ...

Embodiment 3

[0051] In this embodiment, SiC reinforced by low temperature glass phase p / Cu composite material, in which SiC particles wrapped by glass phase are dispersed in Cu matrix, among which SiC, SiO 2 The volume ratio of Cu and Cu is 1:1.2:4, SiO in the glass phase 2 with K 2 The molar ratio of O is 6, and the size of SiC particles is 10 μm.

[0052] In this embodiment, SiC reinforced by low temperature glass phase p The preparation method of / Cu composite material, comprises the following steps:

[0053] (1) According to the volume ratio of ester, alcohol and water as 23:35:3, disperse tetraethyl orthosilicate (TEOS) and α-SiC in ethanol solution, adjust the pH of the solution to 3 with citric acid, Stir magnetically at 60°C for 2 hours to completely hydrolyze tetraethyl orthosilicate to SiO 2 Form a sol, then use ammonia water to adjust the pH value of the solution to 11, continue magnetic stirring for 2 hours to obtain a composite gel, vacuum filter, blow dry at 85°C for 1....

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
sizeaaaaaaaaaa
Vickers hardnessaaaaaaaaaa
flexural strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a low temperature glass phase enhanced SiCp / Cu composite material and a preparation method thereof, and belongs to the technical field of ceramic enhanced metal-based composite material preparation. SiC particles coated by a glass phase are dispersed in Cu matrix of the SiCp / Cu composite material; and the glass phase comprises SiO2 and K2O, wherein a molar ratio of SiO2 to K2O is 2-6 and a volume ratio of SiC to SiO2 and Cu in the glass phase is 1:(0.2-1.2):(2-4). On one hand, the low temperature glass phase has good interface wettability with the SiC particles in melting, a certain amount of Cu2O is formed on the Cu-based particle surfaces during a sintering process of the composite material, and Cu2O participates in formation of interface glass phase, so that the Cu matrix has good adhesion with the glass phase. On the other hand, the introduction of the interface glass phase can prevent direct surface contact of a plurality of SiC particles in aggregation and prevent mutual diffusion of reactant atoms in an interface solid-phase reaction, thereby effectively inhibiting formation of interface solid-phase reaction products and enabling the composite material to gain excellent comprehensive mechanical properties.

Description

technical field [0001] The invention specifically relates to a SiC reinforced by a low-temperature glass phase p / Cu composite material, and the preparation method of the composite material, belong to the technical field of ceramic reinforced metal matrix composite material preparation. Background technique [0002] Silicon carbide particle-reinforced copper-based composite material combines the respective advantages of copper matrix and silicon carbide-reinforced particles, synergistically complements each other, combines excellent electrical conductivity, thermal conductivity, and wear resistance, and has the advantages of low raw material cost and simple preparation process. SiC p / Cu composite material is likely to become a new generation of high-performance materials with integrated structure and function, and play an important role in aerospace, electronic packaging and other fields. It is a new type of material with broad application prospects. However, due to the d...

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): C22C1/05C22C9/00
Inventor 张锐范冰冰王晨阳邵刚许红亮王海龙卢红霞陈德良杨道媛孙冰李新芳陈永强王鹏辉
Owner ZHENGZHOU UNIVERSITY OF AERONAUTICS
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