Unraveling the new role of La on arc erosion behavior of C/Cu-based electrical contacts

Bingtian Li; Ziyao Chen; Zhen Jie Guan; Runchen Yang; Weijian Li; Liang Zhen; Wenzhu Shao

doi:10.1016/j.matlet.2024.137669

Unraveling the new role of La on arc erosion behavior of C/Cu-based electrical contacts

Bingtian Li
, Ziyao Chen
, Zhen Jie Guan
, Runchen Yang
, Weijian Li^*
, Liang Zhen
, Wenzhu Shao^*

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
Harbin Institute of Technology
Yantai University

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Copper/carbon (C/Cu) electrical contact materials are widely used in low-voltage appliances due to their exceptional conductivity and anti-ablation properties. However, the oxidation of Cu during operation and the suboptimal wettability at the C/Cu interface negatively impact its arc-resistant performance. This study explores the potential for enhancing the arc-resistant characteristics of C/Cu electrical contact materials through the alloying of La in Cu. The findings indicate that La alloying in Cu significantly decreases the contact resistance (from 50 mΩ to 2.2 mΩ) and mass loss (by 50%) of C/Cu electrical contact materials.

Original language	English
Article number	137669
Journal	Materials Letters
Volume	379
DOIs	https://doi.org/10.1016/j.matlet.2024.137669
State	Published - 15 Jan 2025

Keywords

Arc erosion behavior
C/Cu electrical contacts
First-principles calculation
Microstructure
Rare earth
Wettability

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10.1016/j.matlet.2024.137669

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@article{02250d97aa604939bfff346be1228aec,

title = "Unraveling the new role of La on arc erosion behavior of C/Cu-based electrical contacts",

abstract = "Copper/carbon (C/Cu) electrical contact materials are widely used in low-voltage appliances due to their exceptional conductivity and anti-ablation properties. However, the oxidation of Cu during operation and the suboptimal wettability at the C/Cu interface negatively impact its arc-resistant performance. This study explores the potential for enhancing the arc-resistant characteristics of C/Cu electrical contact materials through the alloying of La in Cu. The findings indicate that La alloying in Cu significantly decreases the contact resistance (from 50 mΩ to 2.2 mΩ) and mass loss (by 50\%) of C/Cu electrical contact materials.",

keywords = "Arc erosion behavior, C/Cu electrical contacts, First-principles calculation, Microstructure, Rare earth, Wettability",

author = "Bingtian Li and Ziyao Chen and Guan, \{Zhen Jie\} and Runchen Yang and Weijian Li and Liang Zhen and Wenzhu Shao",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier B.V.",

year = "2025",

month = jan,

day = "15",

doi = "10.1016/j.matlet.2024.137669",

language = "英语",

volume = "379",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Unraveling the new role of La on arc erosion behavior of C/Cu-based electrical contacts

AU - Li, Bingtian

AU - Chen, Ziyao

AU - Guan, Zhen Jie

AU - Yang, Runchen

AU - Li, Weijian

AU - Zhen, Liang

AU - Shao, Wenzhu

PY - 2025/1/15

Y1 - 2025/1/15

N2 - Copper/carbon (C/Cu) electrical contact materials are widely used in low-voltage appliances due to their exceptional conductivity and anti-ablation properties. However, the oxidation of Cu during operation and the suboptimal wettability at the C/Cu interface negatively impact its arc-resistant performance. This study explores the potential for enhancing the arc-resistant characteristics of C/Cu electrical contact materials through the alloying of La in Cu. The findings indicate that La alloying in Cu significantly decreases the contact resistance (from 50 mΩ to 2.2 mΩ) and mass loss (by 50%) of C/Cu electrical contact materials.

AB - Copper/carbon (C/Cu) electrical contact materials are widely used in low-voltage appliances due to their exceptional conductivity and anti-ablation properties. However, the oxidation of Cu during operation and the suboptimal wettability at the C/Cu interface negatively impact its arc-resistant performance. This study explores the potential for enhancing the arc-resistant characteristics of C/Cu electrical contact materials through the alloying of La in Cu. The findings indicate that La alloying in Cu significantly decreases the contact resistance (from 50 mΩ to 2.2 mΩ) and mass loss (by 50%) of C/Cu electrical contact materials.

KW - Arc erosion behavior

KW - C/Cu electrical contacts

KW - First-principles calculation

KW - Microstructure

KW - Rare earth

KW - Wettability

UR - https://www.scopus.com/pages/publications/85208919299

U2 - 10.1016/j.matlet.2024.137669

DO - 10.1016/j.matlet.2024.137669

M3 - 文章

AN - SCOPUS:85208919299

SN - 0167-577X

VL - 379

JO - Materials Letters

JF - Materials Letters

M1 - 137669

ER -

Unraveling the new role of La on arc erosion behavior of C/Cu-based electrical contacts

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Keywords

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