摘要
Preparation method of magnetic nanoparticles with core-shell structure was introduced,especially focusing on the preparation principle of sol-gel method,microemulsion method,and self-assembly technique.The application of core-shell nanoparticles in precision machining was discussed.The Fe_(3)O_(4)@SiO_(2)composite particles were prepared by sol-gel method and were applied to the magnetorheological polishing of titanium alloy plates.Results show that core-shell nanoparticles with higher surface quality can be obtained after processing,compared with those after conventional abrasives.After polishing for 20 min,the surface roughness of the workpiece reaches 23 nm and the scratches are effectively reduced.Finally,the preparation and application of coreshell nanoparticles are summarized and prospected to provide a reference for further research on core-shell nanoparticles.
研究了核壳结构磁性纳米粒子的制备方法,重点阐述了溶胶凝胶法、微乳液法、自组装技术的制备原理机制,探讨了近年来关于核壳结构在精密加工方面的相关研究进展。利用溶胶凝胶法制备了Fe_(3)O_(4)@SiO_(2)复合粒子,并将其应用于钛合金板材的磁流变抛光中。结果表明,与传统磨粒相比,核壳结构磨粒加工后可获得更高的表面质量。经过20 min抛光后,工件面粗糙度达到了23 nm,并且有效地减少了划痕。最后,对核壳结构纳米粒子的制备和应用进行了总结和展望,为核壳结构纳米粒子进一步研究提供参考。
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2024年第12期3348-3357,共10页
Rare Metal Materials and Engineering
基金
National Natural Science Foundation of China(52265056)
Lanzhou Youth Talent Project(2023-QN-38)
Hongliu Youth Fund of Lanzhou University of Technology(07/062004)。
