Tungsten nanoparticles with controlled shape and crystallinity obtained by magnetron sputtering and gas aggregation

Acsente, T.; Negrea, Raluca; Nistor, L. C.; Matei, Elena; Grisolia, Christian; Bı̂rjega, R.; Dinescu, Gheorghe

doi:10.1016/j.matlet.2017.04.105

Cited by 28 publications

(16 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The latter enabled production of complex functional nanocomposite or nanostructured materials with different architectures including classical nanocomposites or multi‐layered structures, coatings with dual‐scale roughness, or materials with horizontal gradients of NPs embedded into a matrix material . Furthermore, the GAS systems were proved to be highly flexible also in terms of composition of produced NPs as they enabled fabrication of metallic, metal‐oxide as well as polymeric NPs …”

Section: Introductionmentioning

confidence: 99%

Core@shell Cu/hydrocarbon plasma polymer nanoparticles prepared by gas aggregation cluster source followed by in‐flight plasma polymer coating

Kylián

Kuzminova

Vaydulych

et al. 2017

Plasma Processes & Polymers

View full text Add to dashboard Cite

Core@shell Cu/hydrocarbon plasma polymer nanoparticles (NPs) have been prepared using a gas aggregation cluster source followed by in‐flight plasma polymer coating of produced Cu NPs. Conventional plasma polymerization of vapors of n‐Hexane or acetone has been applied. It is shown that this strategy for core@shell NPs production enables to achieve homogeneous shells with thickness in nanometer scale without impact on the properties of metallic cores (crystallinity, optical properties). In addition, it has been proved that the chemical properties of shells may be controlled by use of different organic precursors that enables production of NPs with different wettabilities.

show abstract

Section: Introductionmentioning

confidence: 99%

Core@shell Cu/hydrocarbon plasma polymer nanoparticles prepared by gas aggregation cluster source followed by in‐flight plasma polymer coating

Kylián

Kuzminova

Vaydulych

et al. 2017

Plasma Processes & Polymers

View full text Add to dashboard Cite

show abstract

“…Currently in literature are mentioned various methods for producing W NPs, using different types of chemical and physical processes like: chemical [19] or solvothermal decomposition [20] of W based compounds, mechanical milling [21], vaporization of W precursors in thermal plasma [22], metallic wires explosion [23], laser ablation in liquids [24,25], growth of W dust in sputtering discharges (i.e. complex plasmas) [26,27], and by magnetron sputtering combined with gas aggregation (MSGA) [28,29].…”

Section: Tungsten Nanoparticles: Their Applications and Methods For Tmentioning

confidence: 99%

“…The experiments of W NPs synthesis by MSGA were reported for first time by us [28,29] using as working gas sole Ar. These were performed using RF power in both continuous wave (60 W [28] and 100 W [29]) and in rectangular pulsed mode [29] (RF power was switched ON/OFF at intervals of 200 ms, duty cycle 50%, the maximum RF power being 120 W and the minimum one being zero, i.e. an average value of 60 W).…”

Section: Deposition Rate: Shape Of the Deposit On The Substratementioning

confidence: 99%

Tungsten Nanoparticles Produced by Magnetron Sputtering Gas Aggregation: Process Characterization and Particle Properties

Acsente¹,

Bernard²,

Dinescu³

et al. 2020

Progress in Fine Particle Plasmas

View full text Add to dashboard Cite

Tungsten and tungsten nanoparticles are involved in a series of processes, in nanotechnology, metallurgy, and fusion technology. Apart from chemical methods, nanoparticle synthesis by plasma offers advantages as good control of size, shape, and surface chemistry. The plasma methods are also environmentally friendly. In this chapter, we present aspects related to the magnetron sputtering gas aggregation (MSGA) process applied to synthesis of tungsten nanoparticles, with size in the range of tens to hundreds of nanometers. We present the MSGA process and its peculiarities in the case of tungsten nanoparticle synthesis. The properties of the obtained particles with a focus on the influence of the process parameters over the particle production rate, their size, morphology, and structure are discussed. To the end, we emphasize the utility of such particles for assessing the environmental and biological impacts in case of using tungsten as wall material in thermonuclear fusion reactors.

show abstract

“…Chemical methods involve a decomposition of the metallic compounds, for example, tungsten particles could be obtained by using chemical reduction of WCl 6 [30]. Physical approaches for particles production include laser ablation in liquids [31], sputtering combined with gas aggregation [32,33] and so on. In this paper, we focus on the generation and characterization of tungsten particles, produced with a plasma microjet, as result of plasma-electrode interaction.…”

Section: Introductionmentioning

confidence: 99%

Tungsten particles fabrication by a microjet discharge

Mărăscu

Lazea-Stoyanova

Bonciu

et al. 2020

Mater. Res. Express

View full text Add to dashboard Cite

As a consequence of interaction of a microjet discharge with the tungsten electrodes, tungsten material is released to plasma, and tungsten particles, of submicron size, are formed. The obtained particles were analyzed to establish a correlation of their morphology, size distribution and chemical composition with the discharge configuration and distance to collector. Experimental conditions were identified leading to spherical tungsten particles.

show abstract

Tungsten nanoparticles with controlled shape and crystallinity obtained by magnetron sputtering and gas aggregation

Cited by 28 publications

References 9 publications

Core@shell Cu/hydrocarbon plasma polymer nanoparticles prepared by gas aggregation cluster source followed by in‐flight plasma polymer coating

Core@shell Cu/hydrocarbon plasma polymer nanoparticles prepared by gas aggregation cluster source followed by in‐flight plasma polymer coating

Tungsten Nanoparticles Produced by Magnetron Sputtering Gas Aggregation: Process Characterization and Particle Properties

Tungsten particles fabrication by a microjet discharge

Contact Info

Product

Resources

About