Study on the Electrical and Mechanical Properties of TiC Particle-Reinforced Copper Matrix Composites Regulated by Different Rare Earth Elements
Copper matrix composites (CMCs) synergistically reinforced with rare earth oxides (Re<sub>2</sub>O<sub>3</sub>) and TiC were prepared using a powder metallurgy process with vacuum hot-pressing and sintering technology, aiming to explore new ways to optimize the properties of...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/15/2/96 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Copper matrix composites (CMCs) synergistically reinforced with rare earth oxides (Re<sub>2</sub>O<sub>3</sub>) and TiC were prepared using a powder metallurgy process with vacuum hot-pressing and sintering technology, aiming to explore new ways to optimize the properties of composites. Through this innovative approach, we propose a new solution strategy and idea for the difficult problem of mutual constraints between electrical and mechanical properties faced by traditional dual-phase reinforced Cu-matrix composites. Meanwhile, the modulation mechanism of Re<sub>2</sub>O<sub>3</sub> in CMCs and the electrical and mechanical properties of the composites were investigated. The compressive yield strength was improved from pure Cu (50 MPa) to TiC/Cu (159 MPa). The yield strength of Eu<sub>2</sub>O<sub>3</sub>-TiC/Cu obtained after biphasic strengthening is 213 MPa, which is 326% higher than that of pure Cu, and the ultimate compressive strength reaches 790 MPa. The conductivity was enhanced from TiC/Cu (81.4% IACS) to La<sub>2</sub>O<sub>3</sub>-TiC/Cu (87.3% IACS). |
|---|---|
| ISSN: | 2079-4991 |