摘要
石墨烯薄片具有形状薄(≤1μm)、质量轻(≤0.1mg)的特点。本文根据磁-阿基米德原理,设计了磁力悬浮装置。基于COMSOL磁场仿真软件,模拟磁力悬浮装置的磁场模型,通过对磁场中心轴线磁感应强度的分析,建立石墨烯密度与悬浮高度的关系;在恒定环境温度(23±1)℃和标准大气压下,以顺磁性液体MnCl_(2)溶液作为介质,分析石墨烯在溶液中的悬浮高度。结果表明:不同密度的石墨烯薄片均能稳定悬浮于溶液中,且根据悬浮高度差计算其密度差值为9kg/m^(3)。
Due to the thin shape(≤1μm) and light weight(≤0.1mg) of graphene flakes,a magnetic levitation device was designed based on the magnetic Archimedes principle.Based on the COMSOL magnetic field simulation software,a magnetic field model of a magnetic levitation device is simulated.By analyzing the magnetic induction intensity of the central axis of the magnetic field,the relationship between graphene density and levitation height is established.Analyze the suspension height of graphene in a solution using a paramagnetic liquid MnCl_(2) solution at a constant ambient temperature of(23±1)℃ and standard atmospheric pressure.The results showed that graphene flakes with different densities could be stably suspended in solution,and the density difference was calculated to be 9kg/m~3 based on the difference in suspension height.
作者
张怡雯
许诚
ZHANG Yiwen;XU Cheng
出处
《计量与测试技术》
2025年第1期94-96,共3页
Metrology & Measurement Technique
关键词
石墨烯
磁力悬浮
磁感应强度
材料密度
graphene
magnetic levitation
magnetic induction intensity
