Jiahui Xu , Hang Wang , Ihor I. Bulyk , Shengguo Zhou , Munan Yang , Bin Yang
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引用次数: 0
Abstract
NdFeB magnets display excellent magnetic properties, but severe corrosion often restricts their applications. Developing surface protection coatings is essential to mitigate this issue. In this study, Ti3C2Tx-Ni nanocomposite coatings were successfully deposited on NdFeB magnets through electrostatic self-assembly and pulsed-current electrodeposition. The results indicate that ammonia-modulated Ti3C2Tx-Ni nanocomposite coatings display excellent surface flatness and improved anti-wear and anti-corrosion properties. Microstructure analyses and density functional theory calculations reveal that NH3·H2O effectively modulates Ni2+ ion adsorption on Ti3C2Tx, alleviating Ti3C2Tx aggregation in the electrolyte. Further, the energy barrier for Cl- penetration into Ti3C2Tx is higher than that for Ni, providing significant support for enhancing the corrosion resistance of the Ti3C2Tx-Ni coating. This work presents a novel strategy for providing improved protection to NdFeB magnets using Ti3C2Tx-Ni nanocomposite coatings, thereby expanding their potential applications in harsh environments.
期刊介绍：
Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.
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