Microstructure and Properties of Al<sub>2</sub>O<sub>3</sub>/Cu-Cr Composites Prepared by Vacuum Hot-pressed Sintering

Tian Baohong1; Zhou Honglei1; Liu Yong1; Ren Fengzhang1; Jia Shuguo1; Liu Ping2

Views : 0 下载量: 453 CSCD: 4

Export
Share
Collection
Album

Microstructure and Properties of Al₂O₃/Cu-Cr Composites Prepared by Vacuum Hot-pressed Sintering
Vol. 29, Issue 2, Pages: 166-169(2009)
Published： 2009 ，
DOI：

扫描看全文

[1]田保红,周洪雷,刘勇,任凤章,贾淑果,刘平.真空热压烧结Al_2O_3/Cu-Cr复合材料的组织与性能[J].特种铸造及有色合金,2009,29(02):166-169+96.

Tian Baohong1, Zhou Honglei1, Liu Yong1, et al. Microstructure and Properties of Al₂O₃/Cu-Cr Composites Prepared by Vacuum Hot-pressed Sintering. [J]. Special Casting & Nonferrous Alloys 29(2):166-169(2009)
[1]田保红,周洪雷,刘勇,任凤章,贾淑果,刘平.真空热压烧结Al_2O_3/Cu-Cr复合材料的组织与性能[J].特种铸造及有色合金,2009,29(02):166-169+96. DOI：

Tian Baohong1, Zhou Honglei1, Liu Yong1, et al. Microstructure and Properties of Al₂O₃/Cu-Cr Composites Prepared by Vacuum Hot-pressed Sintering. [J]. Special Casting & Nonferrous Alloys 29(2):166-169(2009) DOI：

摘要

采用简化内氧化真空热压烧结工艺制备了不同Cu2O加入量（4%、5%、6%）的Al2O3/Cu-Cr复合材料。分析研究了其微观组织与性能

并研究了冷变形对材料性能的影响。结果表明

在铜基体上弥散分布着细小粒状Al2O3颗粒

其粒径为5～20nm

颗粒间距为20～150nm;Al2O3/Cu-Cr复合材料经80%变形后

其硬度和抗拉强度明显提高

而电导率则随变形量的增大先升高后降低;随着Cu2O加入量的增加

材料的抗软化性能逐渐提高;当Cu2O加入量为5%时

真空热压烧结（950℃

22MPa）后全部完成内氧化

且变形后综合性能最优

此时Cu2O含量为最佳的添加量。

Abstract

/Cu-Cr composites with different oxygen resource（Cu2O）contents of 4%

5% and 6% were prepared by vacuum-pressed sintering with a simplified internal oxidation method.The microstructure and effects of cold deformation on properties of the composites were described.It is found that fine Al

particles with diameters of 5～20nm and 20～150nm in particle interval were uniformly distributed into the Cu matrix.The hardness and tensile strength of the 80% deformed composites can be remarkably increased

while the electric conductivity of the composites is firstly increased and then decreased with increasing in deformation rate.With oxygen resource content increases

the soft resistance of the composites is strengthened.After hot-pressed sintering at 950℃ for 4 h in case of 22MPa

the internal oxidation of compressed Cu-Al alloy powder is totally completed with 5% oxygen resource content

resulting in the desirable comprehensive properties of deformed composites.

关键词

Al2O3/Cu-Cr复合材料热压烧结性能电导率

Keywords

Al2O3/Cu-Cr CompositesHot-pressed SinteringPropertiesElectric Conductivity

references

Alert me when the article has been cited

提交

Research Status and Application Progress of Ti-45Nb Alloy

Research on the Microstructure and Properties of Hypereutectic Al-24Si Alloy Stirred by Electromagnetic Field

Prospect of Making Artificial Bones with Uni directional Solidification Porous Metals

Microstructure and Properties of CuCr Series Pseudobinary Alloy by Arc Melting

Effects of B on the Electric Conductivity of Fe or Si Containing Aluminum

Microstructure and Properties of Al2O3/Cu-Cr Composites Prepared by Vacuum Hot-pressed Sintering

DOI：

摘要

Abstract

关键词

Keywords

references

Microstructure and Properties of Al₂O₃/Cu-Cr Composites Prepared by Vacuum Hot-pressed Sintering