In-flight modification of Ni nanoparticles by tubular magnetron sputtering

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10397887" target="_blank" >RIV/00216208:11320/19:10397887 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=NBybT89Rjo" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=NBybT89Rjo</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6463/ab00d0" target="_blank" >10.1088/1361-6463/ab00d0</a>

Jazyk výsledku

angličtina

Název v původním jazyce

In-flight modification of Ni nanoparticles by tubular magnetron sputtering

Popis výsledku v původním jazyce

A tubular magnetron (TMG) was used for in-flight deposition of Cu over Ni nanoparticles (NPs) pre-synthesized in a planar magnetron-based gas aggregation cluster source. The amount of deposited copper was driven by the magnetron current and magnetic field of the TMG. The structure of the resultant NPs was investigated by transmission electron microscopy (TEM), scanning transmission electron microscopy, x-ray diffraction (XRD) and small angle x-ray scattering. Alloying of Cu and Ni was observed in all the cases, yet with the formation of a copper-enriched shell in the case with higher Cu content. XRD and TEM analyses showed that plasma-NP interactions led to the disappearance of Ni crystal lattice defects. For a certain range of the magnetron currents, spontaneous pulsing of the NPs deposition rate was observed which was accompanied by the changes in the NP size distribution and chemical composition. The phenomenon was attributed to the cycle trapping, growth and release of the NPs inside and from the TMG. Such cycle instabilities led to the formation of NP deposits with high polydispersity.

Název v anglickém jazyce

In-flight modification of Ni nanoparticles by tubular magnetron sputtering

Popis výsledku anglicky

A tubular magnetron (TMG) was used for in-flight deposition of Cu over Ni nanoparticles (NPs) pre-synthesized in a planar magnetron-based gas aggregation cluster source. The amount of deposited copper was driven by the magnetron current and magnetic field of the TMG. The structure of the resultant NPs was investigated by transmission electron microscopy (TEM), scanning transmission electron microscopy, x-ray diffraction (XRD) and small angle x-ray scattering. Alloying of Cu and Ni was observed in all the cases, yet with the formation of a copper-enriched shell in the case with higher Cu content. XRD and TEM analyses showed that plasma-NP interactions led to the disappearance of Ni crystal lattice defects. For a certain range of the magnetron currents, spontaneous pulsing of the NPs deposition rate was observed which was accompanied by the changes in the NP size distribution and chemical composition. The phenomenon was attributed to the cycle trapping, growth and release of the NPs inside and from the TMG. Such cycle instabilities led to the formation of NP deposits with high polydispersity.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physics D - Applied Physics

ISSN

0022-3727

e-ISSN

—

Svazek periodika

52

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

205302

Kód UT WoS článku

000460966100002

EID výsledku v databázi Scopus

2-s2.0-85063949995