Paper Type ![]() |
Contributed Paper |
Title ![]() |
Formation of High Hardness ZnO/Cu Nanocomposite by Thermal Oxidation from Cu-Zn Alloy Strips |
Author ![]() |
Minh-Tan Ha, Pham Mai Khanh and Nguyen Hong Hai |
Email ![]() |
hai.nguyenhong1@hust.edu.vn |
Abstract: Due to their superior thermal, electrical, and mechanical properties, brass and Cu-Zn alloys are widely used in a broad range of applications. In applications requiring greater durability, corrosion resistance, and wear resistance, however, the ZnO/Cu composite is preferable. Typically, ZnO/Cu composites are manufactured through powder metallurgy. In this article, brass strips is thermally oxidized in an oxygen atmosphere to produce ZnO/Cu composite strips. The optimal temperature and oxygen pressure are 600–650 °C and less than one atmosphere, respectively. The homogeneous distribution of nanoscale ZnO clusters in the Cu matrix can be attributed to the diffusion of both Zn and O in the matrix. In addition, the composite is substantially harder than brass, increasing from 70–90 HV to 200–240 HV. Therefore, thermal oxidation has been shown to be a simple and cost-effective process for producing ZnO/Cu composites with high hardness. |
|
Article ID ![]() |
e2024045 |
Received Date ![]() |
2023-12-11 |
Revised Date ![]() |
2024-03-20 |
Accepted Date ![]() |
2024-04-16 |
Full Text ![]() |
Download |
Keyword ![]() |
nanocomposite, brass, Cu-Zn, ZnO/Cu, thermal oxidation, diffusion |
Volume ![]() |
Vol.51 No.3 (May 2024) |
DOI |
https://doi.org/10.12982/CMJS.2024.045 |
Citation |
Ha M., Mai P. and Hong N., Formation of High Hardness ZnO/Cu Nanocomposite by Thermal Oxidation from Cu-Zn Alloy Strips, Chiang Mai Journal of Science, 2024; 51(3): e2024045. DOI 10.12982/CMJS.2024.045. |
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