Levitation of iridium and liquid mercury by ultrasound -: art. no. 104304

被引：123

作者：

Xie, WJ ^{[1
]}

Cao, CD ^{[1
]}

Lü, YJ ^{[1
]}

Wei, B ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Dept Appl Phys, Xian 710072, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.89.104304

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Single-axis acoustic levitation of the heaviest solid (iridium, rho=22.6 g cm(-3)) and liquid (mercury, rho=13.6 g cm(-3) on the Earth is achieved by greatly enhancing both the levitation force and stability through optimizing the geometric parameters of the levitator. The acoustically levitated Pb-Sn eutectic alloy melt (rho=8.5 g cm(-3)) is highly undercooled by up to 38 K, which results in a microstructural transition of "lamellae-broken lamellae-dendrites." The drastic enhancement of levitation capability indicates a broader application range of single-axis acoustic levitation.

引用

页码：104304 / 104304

页数：4

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