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Influence of Ni2+/Co2+ ratio in electrolyte on morphology, structure and magnetic properties of electrolytically produced Ni−Co alloy powders
dc.creator | Maksimović, Vesna M. | |
dc.creator | Kusigerski, Vladan B. | |
dc.creator | Stoiljković, Milovan | |
dc.creator | Maletaškić, Jelena | |
dc.creator | Nikolić, Nebojša D. | |
dc.date.accessioned | 2020-06-07T11:37:35Z | |
dc.date.available | 2020-06-07T11:37:35Z | |
dc.date.issued | 2020 | |
dc.identifier.issn | 1003-6326 | |
dc.identifier.issn | 2210-3384 | |
dc.identifier.uri | https://cer.ihtm.bg.ac.rs/handle/123456789/3575 | |
dc.description.abstract | Nickel−cobalt (Ni−Co) alloy powders were produced galvanostatically by using sulphate electrolytes with various ratios of Ni2+/Co2+ (mole ratios). The morphology, phase structure, chemical composition and magnetic properties were examined by scanning electron microscope (SEM), X-ray diffractometer (XRD), atomic emission spectrometer (AES), and SQUID-based magnetometer, respectively. Morphology of the particles changed from cauliflower-like and dendritic to coral-like and spongy-like ones with increasing Ni2+/Co2+ ratio from 0.25 to 4.0. XRD analysis of the Ni−Co powders revealed that the decrease of Ni2+/Co2+ ratios (the increase of Co content) caused a change of structure from face centered cubic (FCC) obtained for the ratios of 4.0, 1.5 and 0.67 to a mixture of FCC and hexagonal closed-packed (HCP) phases for the ratio of 0.25. The increasing content of nickel led to change of mechanism of electrolysis from irregular (up to ~40 wt.% Ni in the electrolytes) to close to equilibrium (between ~40 and 60 wt.% Ni in the electrolytes) and anomalous co-deposition (over 60 wt.% Ni in the electrolytes) type. All of the obtained Ni−Co alloy samples behaved as soft magnetic materials while their magnetic parameters showed immediate composition dependence since both coercivity and saturation magnetization almost linearly increased with increase of the Co content. | en |
dc.language.iso | en | sr |
dc.publisher | Elsevier | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45012/RS// | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172019/RS// | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45015/RS// | sr |
dc.rights | openAccess | sr |
dc.source | Transactions of Nonferrows Metals Society of China | sr |
dc.subject | Ni−Co alloy powders | sr |
dc.subject | electrolysis | sr |
dc.subject | hydrogen | sr |
dc.subject | morphology | sr |
dc.subject | magnetic properties | sr |
dc.title | Influence of Ni2+/Co2+ ratio in electrolyte on morphology, structure and magnetic properties of electrolytically produced Ni−Co alloy powders | en |
dc.type | article | sr |
dc.rights.license | ARR | sr |
dcterms.abstract | Кусигерски, Владан Б.; Малеташкић, Јелена Р.; Николић, Небојша Д.; Стоиљковић, Милован М.; Максимовић, Весна М.; | |
dc.rights.holder | Elsevier | sr |
dc.citation.volume | 30 | |
dc.citation.issue | 4 | |
dc.citation.spage | 1046 | |
dc.citation.epage | 1057 | |
dc.citation.rank | M21~ | |
dc.identifier.doi | 10.1016/S1003-6326(20)65276-1 | |
dc.identifier.fulltext | https://cer.ihtm.bg.ac.rs/bitstream/id/16502/1-s2.0-S1003632620652761-main.pdf | |
dc.identifier.scopus | 2-s2.0-85083833160 | |
dc.identifier.wos | 000531812800018 | |
dc.type.version | publishedVersion | sr |