核壳结构粒子制备及在精密加工中的应用
Preparation of Core-Shell Nanoparticles and Their Applica-tion in Precision Machining
王有良 1康娅婷 1张文娟 2姜哲 1尹新城1
作者信息
- 1. 兰州理工大学机电工程学院,甘肃兰州 730050
- 2. 兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室,甘肃兰州 730050
- 折叠
摘要
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Fe3O4@SiO2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20min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.
Abstract
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 Fe3O4@SiO2 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 core-shell nanoparticles are summarized and prospected to provide a reference for further research on core-shell nanoparticles.
关键词
核壳结构/磁性复合纳米粒子/制备/精密加工/应用Key words
core-shell structure/magnetic composite nanoparticles/preparation/precision machining/applications引用本文复制引用
出版年
2024
NETL
NSTL
万方数据