About: Structure and magnetic properties of nickel nanoparticles prepared by selective leaching

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this study, we propose a novel method for preparation of nanocrystalline powder precursors for powder metallurgy processing. Nickel nanocrystalline powders were prepared by selective leaching of the Al-20Ni alloys in NaOH solution. The powders were studied by SEM, TEM, XRD, magnetometry and by small angle neutron scattering. The prepared powders had internal structure formed by grains of 5-50 nm in size depending on the leaching temperature. It was also proven that slight grain coarsening occurred during heating of particles at 40-80 degrees C for one hour. Magnetometry testing revealed significantly reduced magnetization of nanocrystalline nickel which is related to the internal structure. The results indicate that nickel powders prepared by selective leaching are suitable precursor for powder metallurgical preparation of bulk products with interesting physical and possible also mechanical properties. (C) 2014 Elsevier B.V. All rights reserved. In this study, we propose a novel method for preparation of nanocrystalline powder precursors for powder metallurgy processing. Nickel nanocrystalline powders were prepared by selective leaching of the Al-20Ni alloys in NaOH solution. The powders were studied by SEM, TEM, XRD, magnetometry and by small angle neutron scattering. The prepared powders had internal structure formed by grains of 5-50 nm in size depending on the leaching temperature. It was also proven that slight grain coarsening occurred during heating of particles at 40-80 degrees C for one hour. Magnetometry testing revealed significantly reduced magnetization of nanocrystalline nickel which is related to the internal structure. The results indicate that nickel powders prepared by selective leaching are suitable precursor for powder metallurgical preparation of bulk products with interesting physical and possible also mechanical properties. (C) 2014 Elsevier B.V. All rights reserved. (en)
Title	Structure and magnetic properties of nickel nanoparticles prepared by selective leaching Structure and magnetic properties of nickel nanoparticles prepared by selective leaching (en)
skos:prefLabel	Structure and magnetic properties of nickel nanoparticles prepared by selective leaching Structure and magnetic properties of nickel nanoparticles prepared by selective leaching (en)
skos:notation	RIV/60461373:22310/14:43897629!RIV15-GA0-22310___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA14-03044S), P(GBP108/12/G043)
http://linked.open...iv/cisloPeriodika	září
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Svobodová, Petra Nováková, Radka Novák, Pavel Michalcová, Alena Marek, Ivo Vojtěch, Dalibor
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemické technologie
http://linked.open...dnocenehoVysledku	47901
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/14:43897629
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Metals and Alloys; Magnetic Materials; Nanoparticles (en)
http://linked.open.../riv/klicoveSlovo	Nanoparticles Magnetic Materials Metals and Alloys
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[4BAD3EA1A32F]
http://linked.open...i/riv/nazevZdroje	Materials Letters
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Interface controlled properties of micro/nanocrystalline materials for advanced structural applications, biodegradable implants and hydrogen storage Preparation of NiTi shape memory alloys by reactive sintering
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	137
http://linked.open...iv/tvurceVysledku	Marek, Ivo Novák, Pavel Vojtěch, Dalibor Michalcová, Alena Svobodová, Petra Heczko, Oleg Nováková, Radka Len, Adel
http://linked.open...ain/vavai/riv/wos	000345469700060
issn	0167-577X
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.matlet.2014.09.012
http://localhost/t...ganizacniJednotka	22310

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