Formation of metal microspheres by ultrasonic cavitation

Friedman, H.; Porat, Ze’ev; Halevy, I.; Reich, S.

doi:10.1557/jmr.2010.0083

Cited by 20 publications

(10 citation statements)

References 15 publications

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“…14 We have recently reported on the formation of gallium microspheres by ultrasonic irradiation of molten gallium in either water or in silicone oil. [15][16][17] The microspheres are formed via the cavitation process which occurs in the liquid and involves the formation, growth and energetic collapse of gas bubbles. The collapse of the acoustic bubble causes dispersion of the molten gallium into nanometric to micrometric spheres which remain stable and do not coalesce aer irradiation is ceased, even though the temperature of the suspension is higher than the melting point of gallium (29.8 C).…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic cavitation of molten gallium in water: entrapment of organic molecules in gallium microspheres

et al. 2014

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Section: Introductionmentioning

confidence: 99%

Ultrasonic cavitation of molten gallium in water: entrapment of organic molecules in gallium microspheres

et al. 2014

Self Cite

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“…Metal droplets can be fabricated by ultrasonic cavitation when low-melting-point metals mix with hot silicone [84,85]. Similarly, ultrasonic cavitation is also suitable for fabrication of LM micro/nanodroplets [86][87][88][89].…”

Section: Fabrication Of Pure Liquid Metal Dropletsmentioning

confidence: 99%

Responsive Liquid Metal Droplets: From Bulk to Nano

et al. 2022

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Droplets exist widely in nature and play an extremely important role in a broad variety of industrial processes. Typical droplets, including water and oil droplets, have received extensive attention and research, however their single properties still cannot meet diverse needs. Fortunately, liquid metal droplets emerging in recent years possess outstanding properties, including large surface tension, excellent electrical and thermal conductivity, convenient chemical processing, easy transition between liquid and solid phase state, and large-scale deformability, etc. More interestingly, liquid metal droplets with unique features can respond to external factors, including the electronic field, magnetic field, acoustic field, chemical field, temperature, and light, exhibiting extraordinary intelligent response characteristics. Their development over the past decade has brought substantial breakthroughs and progress. To better promote the advancement of this field, the present article is devoted to systematically summarizing and analyzing the recent fundamental progress of responsive liquid metal droplets, not only involving droplet characteristics and preparation methods, but also focusing on their diverse response behaviors and mechanisms. On this basis, the challenges and prospects related to the following development of liquid metal droplets are also proposed. In the future, responsive liquid metal droplets with a rapid development trend are expected to play a key role in soft robots, biomedicine, smart matter, and a variety of other fields.

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“…The Pb microparticles are made in-house using ultrasonic cavitation [41], which yields near-spherical particles with a distribution of diameters between 0.5 µm and 200 µm. The tin-lead microspheres of 50 µm diameter are commercially available (Easy-Spheres).…”

Section: Superconducting Microparticlesmentioning

confidence: 99%

A Chip-Based Superconducting Magnetic Trap for Levitating Superconducting Microparticles

Latorre

Paradkar

Hambraeus

et al. 2022

IEEE Trans. Appl. Supercond.

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Magnetically-levitated superconducting microparticles have been recently proposed as a promising platform for performing quantum experiments with particles in the picogram regime. Here, we demonstrate the superconducting technology to achieve chip-based magnetic levitation of superconducting microparticles. We simulate and fabricate a chip-based magnetic trap capable of levitating superconducting particles with diameters from 0.5 µm to 200 µm. The trap consists of two stacked silicon chips, each patterned with a planar multiwinding superconducting coil made of niobium. The two coils generate a magnetic field resembling a quadrupole near the trap center, in which we demonstrate trapping of a spherical 50 µm diameter SnPb microparticle at temperatures of 4 K and 40 mK.

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Formation of metal microspheres by ultrasonic cavitation

Cited by 20 publications

References 15 publications

Ultrasonic cavitation of molten gallium in water: entrapment of organic molecules in gallium microspheres

Ultrasonic cavitation of molten gallium in water: entrapment of organic molecules in gallium microspheres

Responsive Liquid Metal Droplets: From Bulk to Nano

A Chip-Based Superconducting Magnetic Trap for Levitating Superconducting Microparticles

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