About: Changes of structure in Mg-Ni alloys after absorption and desorption of hydrogen

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	This paper deals with changes of structure in Mg-Ni alloys after absorption and desorption of hydrogen. Experimental materials were prepared by two techniques – by casting and by ball milling and subsequent compacting to pellets. These materials were hydrogen-charged at elevated temperature and pressure. Materials were studied using the SEM Jeol JSM 6460 equipped with EDS/WDS analyzers. Formation of rectangular particles of MgNi2, nucleation of MgH2 at grain boundaries, and changes of Mg2Ni were observed. The so-called activation of hydrogen storage alloy is most likely due to fine particles that appear after the first hydrogen charging. This paper deals with changes of structure in Mg-Ni alloys after absorption and desorption of hydrogen. Experimental materials were prepared by two techniques – by casting and by ball milling and subsequent compacting to pellets. These materials were hydrogen-charged at elevated temperature and pressure. Materials were studied using the SEM Jeol JSM 6460 equipped with EDS/WDS analyzers. Formation of rectangular particles of MgNi2, nucleation of MgH2 at grain boundaries, and changes of Mg2Ni were observed. The so-called activation of hydrogen storage alloy is most likely due to fine particles that appear after the first hydrogen charging. (en) V práci byly studovány strukturní změny ve slitinách Mg-Ni po absorpci a desorpci vodiku. Experimentální materály byly připraveny dvěma způsoby – odlitím a mletím a lisováním do tablet. Tyto materiály byly navodíkovány při zvýšené teplotě a tlaku. Byly studovány pomocí SEM Jeol JSM 6460 s EDS/WDS analyzátory. Byla sledována tvorba obdélníkových částic MgNi2, nukleace MgH2 na hranicích zrn a změny Mg2Ni. Tzv. aktivace vodík absorbujícího prostředí je spojena pravděpodobně s velmi jemnými částicemi, které se objeví ve struktuře materiálů po prvním nabíjení vodíkem. (cs)
Title	Changes of structure in Mg-Ni alloys after absorption and desorption of hydrogen Changes of structure in Mg-Ni alloys after absorption and desorption of hydrogen (en) Strukturní změny ve slitinách Mg-Ni po absorpci a desorpci vodíku (cs)
skos:prefLabel	Changes of structure in Mg-Ni alloys after absorption and desorption of hydrogen Changes of structure in Mg-Ni alloys after absorption and desorption of hydrogen (en) Strukturní změny ve slitinách Mg-Ni po absorpci a desorpci vodíku (cs)
skos:notation	RIV/68081723:_____/08:00307736!RIV08-AV0-68081723
http://linked.open.../vavai/riv/strany	paper no. 12
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA106/07/0010), Z(AV0Z20410507)
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Čermák, Jiří Král, Lubomír
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	359504
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/08:00307736
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	hydrogen storage; Mg-Ni alloys; casting and ball milling (en)
http://linked.open.../riv/klicoveSlovo	hydrogen storage Mg-Ni alloys casting and ball milling
http://linked.open...ontrolniKodProRIV	[DE8E6E8A1BB4]
http://linked.open...v/mistoKonaniAkce	Hradec nad Moravicí
http://linked.open...i/riv/mistoVydani	Ostrava
http://linked.open...i/riv/nazevZdroje	METAL 2008. Sborník přednášek.
http://linked.open...in/vavai/riv/obor	BJ
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Diffusion of hydrogen in alloys Mg-Ni modified by chosen elements that suppress the stability of hydrides
http://linked.open...UplatneniVysledku	2008
http://linked.open...iv/tvurceVysledku	Král, Lubomír Čermák, Jiří
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2008-05-13 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
number of pages	8 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Tanger s.r.o.
https://schema.org/isbn	978-80-254-1987-8

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