磁场是否影响铁流体的表面张力?
Christina Khokhryakova1, Andrey Shmyrov1, Irina Mizeva1
1Institute of Continuous Media Mechanics UrB of RAS, ak. Koroleva 1, 614013 Perm, Russia.
Langmuir : the ACS journal of surfaces and colloids
|February 15, 2024
概括
这项研究实验性地表明,磁场改变铁流体表面张力. 表面张力随着磁场强度的增加而增加,影响毛细血管的波浪行为.
科学领域:
- 物理 物理学 物理
- 材料科学 材料科学 材料科学
背景情况:
- 在磁场下研究铁流体物理性质是具有挑战性的.
- 磁场对铁流体界面表面能量的影响仍然不太清楚.
研究的目的:
- 通过实验确定磁场如何影响铁流体表面张力.
- 为了研究磁场方向对铁流体毛细血管波的影响.
主要方法:
- 在外部磁场的存在下,采用了经过修改的毛细管波技术.
- 进行了毛细血管波分散关系的分析.
主要成果:
- 毛细管波的波长随着垂直的磁场而减少,随着平行磁场而增加.
- 在~10kA/m的磁场下,铁流体的表面张力增加了高达10%.
- 观察到的效应归因于磁场引起的表面张力变化.
结论:
- 外部磁场显著影响铁流体的表面张力.
- 磁场相对于铁流体表面的方向会影响毛细管的波动力学.
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