Sulima Iwona, Kowalik Remigiusz, Stępień Michał, Hyjek Paweł
Institute of Technology, University of the National Education Commission, Krakow, Podchorazych 2 Str., 30-084 Krakow, Poland.
Faculty of Non-Ferrous Metals, AGH University of Krakow, Mickiewicz 30 Av., 30-059 Krakow, Poland.
Materials (Basel). 2024 Dec 13;17(24):6105. doi: 10.3390/ma17246105.
This study examined the physical, mechanical, tribological, and corrosion properties of copper metal matrix composites reinforced with zirconium diboride (ZrB). Cu-xZrB composites (x = 0.5, 10, 15, 20 wt.%) were produced by the ball-milling process and spark plasma sintering (SPS). Introducing ZrB particles into copper matrix composites significantly improves their mechanical and tribological properties while deteriorating their density, porosity, and corrosion properties. It was shown that the relative densities of the composites gradually decreased from 96% to 90%, with an increase in the ZrB content to 20 wt.%. Likewise, hardness, compressive strength, and wear resistance improved with increasing ZrB content in the copper matrix. Corrosion resistance tests in a 0.05 M sulfuric acid environment showed a disproportionate decrease in the resistance of this composite with an increase in the concentration of the ceramic phase compared to other environments.
本研究考察了二硼化锆（ZrB）增强铜基金属基复合材料的物理、力学、摩擦学和腐蚀性能。通过球磨工艺和放电等离子烧结（SPS）制备了Cu-xZrB复合材料（x = 0.5、10、15、20 wt.%）。将ZrB颗粒引入铜基复合材料中显著改善了其力学和摩擦学性能，同时使其密度、孔隙率和腐蚀性能变差。结果表明，随着ZrB含量增加到20 wt.%，复合材料的相对密度从96%逐渐降低到90%。同样，随着铜基体中ZrB含量的增加，硬度、抗压强度和耐磨性提高。在0.05 M硫酸环境中的耐腐蚀试验表明，与其他环境相比，随着陶瓷相浓度的增加，该复合材料的电阻不成比例地降低。
