High-energy density beams and plasmas for micro- and nano-texturing of surfaces by rapid melting and solidification

Surla, V.; Ruzic, D. N.

doi:10.1088/0022-3727/44/17/174026

Cited by 12 publications

(4 citation statements)

References 100 publications

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“…The flux of the charged species has a fountain-like shape and rapidly cools upon deposition onto a substrate. These two features are similar to the HED plasma case [350,351]. The temperature in the localized plasma plume can be as high as ∼20000 K. Noting that the plasma size is typically just a fraction of a millimeter, and using a typical ablation yield (for metals) of ∼10 15 atoms per pulse, one can estimate the ionized gas pressures of the order of 10 9 Pa [352].…”

Section: Non-equilibrium Nano-plasmas Of Solidsmentioning

confidence: 60%

Plasma nanoscience: from nano-solids in plasmas to nano-plasmas in solids

Ostrikov

Neyts

Meyyappan

2013

Advances in Physics

498

391

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The unique plasma-specific features and physical phenomena in the organization of nanoscale solid-state systems in a broad range of elemental composition, structure, and dimensionality are critically reviewed. These effects lead to the possibility to localize and control energy and matter at nanoscales and to produce self-organized nano-solids with highly unusual and superior properties. A unifying conceptual framework based on the control of production, transport, and self-organization of precursor species is introduced and a variety of plasmaspecific non-equilibrium and kinetics-driven phenomena across the many temporal and spatial scales is explained. When the plasma is localized to micrometer and nanometer dimensions, new emergent phenomena arise. The examples range from semiconducting quantum dots and nanowires, chirality control of single-walled carbon nanotubes, ultra-fine manipulation of graphenes, nano-diamond, and organic matter, to nano-plasma effects and nano-plasmas of different states of matter. Contents

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Section: Non-equilibrium Nano-plasmas Of Solidsmentioning

confidence: 60%

Plasma nanoscience: from nano-solids in plasmas to nano-plasmas in solids

Ostrikov

Neyts

Meyyappan

2013

Advances in Physics

498

391

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“…It was observed that some hydrogenation cycles caused the C14 and BCC phases to transform into the C14 and FCC hydride phases. Melt‐spinning technology is used in the material world in many fields to evaluate material characteristics for usage in various applications 26‐28 . The ability to generate a finer microstructure, structural and chemical homogeneity, and an expansion of solid solubility are the distinctive characteristics of rapid solidification processing (RSP) techniques 29 .…”

Section: Introductionmentioning

confidence: 99%

“…Melt-spinning technology is used in the material world in many fields to evaluate material characteristics for usage in various applications. [26][27][28] The ability to generate a finer microstructure, structural and chemical homogeneity, and an expansion of solid solubility are the distinctive characteristics of rapid solidification processing (RSP) techniques. 29 However, the impacts of the melt-spinning parameters have only been covered in a relatively small number of investigations for the multicomponent HEAs.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen storage properties in rapidly solidified TiZrVCrNi high‐entropy alloys

Kumar,

Yadav,

Shaz

et al. 2023

Energy Storage

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The development of alloys with substantial hydrogen storage capacities is a potential solution to the demand for hydrogen storage in a future hydrogen‐based energy system. The synthesis, structural‐microstructural properties, and hydrogen storage performance of a multicomponent TiZrVCrNi high‐entropy melt‐spun ribbon have been discussed in the present investigation. The x‐ray diffraction and transmission electron microscopy investigations confirm that this as‐cast and melt‐spun alloy contains only a single C14‐type hexagonal (a = b = 5.02 Å, c = 8.15 Å, α = β = 90°, γ = 120°) Laves phase. The room temperature pressure composition isotherms were studied with a pressure range of 0 to 40 atm. Continuing from our previous study in which we reported a hydrogen storage capacity of ~1.5 wt% in an as‐cast high‐entropy alloy synthesized using Arc melting, the total hydrogen storage capacity of TiZrVCrNi high‐entropy melt‐spun ribbons was found to be ~2 wt% in this work. This study makes the way forward for greater hydrogen storage in melt‐spun ribbons. The observation of only minimal losses in storage capacity, even after 10 cycles of experiments on hydrogen absorption, shows that the reversible hydrogen storage capacity has high durability. To the best of our knowledge, these demonstrations are the first to present a study on the hydrogen storage capacity (~2 wt%) of the equiatomic TiZrVCrNi melt‐spun ribbons.

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“…The modified DPF device with suitable modification has been used worldwide for the fabrication of nanoparticles and nanostructures of different materials [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. In most of these studies, the modification of anode is almost similar but the arrangement for placing the substrate varies.…”

Section: Introductionmentioning

confidence: 99%

Dense Plasma Focus-Based Nanofabrication of III–V Semiconductors: Unique Features and Recent Advances

2015

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The hot and dense plasma formed in modified dense plasma focus (DPF) device has been used worldwide for the nanofabrication of several materials. In this paper, we summarize the fabrication of III–V semiconductor nanostructures using the high fluence material ions produced by hot, dense and extremely non-equilibrium plasma generated in a modified DPF device. In addition, we present the recent results on the fabrication of porous nano-gallium arsenide (GaAs). The details of morphological, structural and optical properties of the fabricated nano-GaAs are provided. The effect of rapid thermal annealing on the above properties of porous nano-GaAs is studied. The study reveals that it is possible to tailor the size of pores with annealing temperature. The optical properties of these porous nano-GaAs also confirm the possibility to tailor the pore sizes upon annealing. Possible applications of the fabricated and subsequently annealed porous nano-GaAs in transmission-type photo-cathodes and visible optoelectronic devices are discussed. These results suggest that the modified DPF is an effective tool for nanofabrication of continuous and porous III–V semiconductor nanomaterials. Further opportunities for using the modified DPF device for the fabrication of novel nanostructures are discussed as well.

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High-energy density beams and plasmas for micro- and nano-texturing of surfaces by rapid melting and solidification

Cited by 12 publications

References 100 publications

Plasma nanoscience: from nano-solids in plasmas to nano-plasmas in solids

Plasma nanoscience: from nano-solids in plasmas to nano-plasmas in solids

Hydrogen storage properties in rapidly solidified TiZrVCrNi high‐entropy alloys

Dense Plasma Focus-Based Nanofabrication of III–V Semiconductors: Unique Features and Recent Advances

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