Micromechanical and structural properties of nickel coatings electrodeposited on two different substrates
Mikromehanička i strukturna svojstva elektrodeponovanih prevlaka nikla na različitim supstratima
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Fine-structured nickel coatings were electrodeposited from a sulfamate-based electrolyte onto different substrates: polycrystalline cold-rolled copper and single crystal silicon with (111) orientation. The influence of the substrate layers and chosen plating conditions on the mechanical and structural properties of these composite structures were investigated by Vickers microhardness testing for different loads. Above a certain critical penetration depth, the measured hardness value was not the hardness of the electrodeposited film, but the so-called 'composite hardness', because the substrate also participated in the plastic deformations during the indentation process. Two composite hardness models (Chicot-Lesage and Korsunsky), constructed on different principles, were chosen and applied to the experimental data in order to distinguish film and substrate hardness. The microhardness values of the electrodeposited nickel layers were mainly influenced by the current density. Increasing ...the current density led to a decrease in grain size, which resulted in higher values of the microhardness.
Sitnozrne prevlake nikla su elektrodeponovane iz sulfamatnog kupatila na različitim supstratima: hladno-valjanom polikristalnom bakru i monokristalnom silicijumu (111) orijentacije. Uticaj supstrata i odabranih parametara elektrodepozicije na mehanička i strukturna svojstva ovih kompozitnih struktura ispitivan je testovima mikrotvrdoće po Vickers-u pri različitim opterećenjima. Iznad kritične dubine utiskivanja, izmerena vrednost tvrdoće nije tvrdoća elektrodeponovanog filma, već takozvana 'kompozitna mikrotvrdoća', jer supstrat učestvuje u plastičnoj deformaciji tokom procesa utiskivanja. Odabrana su dva modela kompozitne tvrdoće bazirana na različitim principima (model Chicot-Lesage i Korsunsky) i primenjena na eksperimentalne rezultate u cilju izračunavanja tvrdoće filma. Vrednosti mikrotvrdoće elektrodeponovanih prevlaka nikla zavise od vrednosti gustine struje. Povećanje gustine struje vodi smanjenju veličine zrna i povećanju vrednosti mikrotvrdoće.
Кључне речи:
Vickers microhardness / composite hardness / hardness models / nickel electrode position / sulfamate-based electrolyteИзвор:
Journal of the Serbian Chemical Society, 2009, 74, 7, 817-831Издавач:
- Serbian Chemical Society, Belgrade
Финансирање / пројекти:
- Дизајнирање нанокристалних магнетних материјала типа (Nd,Pr)FeB и компоненти на бази смарт магнетних материјала (RS-MESTD-MPN2006-2010-142035)
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Lamovec, Jelena AU - Jović, Vesna AU - Aleksić, Radoslav AU - Radojević, Vesna PY - 2009 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1379 AB - Fine-structured nickel coatings were electrodeposited from a sulfamate-based electrolyte onto different substrates: polycrystalline cold-rolled copper and single crystal silicon with (111) orientation. The influence of the substrate layers and chosen plating conditions on the mechanical and structural properties of these composite structures were investigated by Vickers microhardness testing for different loads. Above a certain critical penetration depth, the measured hardness value was not the hardness of the electrodeposited film, but the so-called 'composite hardness', because the substrate also participated in the plastic deformations during the indentation process. Two composite hardness models (Chicot-Lesage and Korsunsky), constructed on different principles, were chosen and applied to the experimental data in order to distinguish film and substrate hardness. The microhardness values of the electrodeposited nickel layers were mainly influenced by the current density. Increasing the current density led to a decrease in grain size, which resulted in higher values of the microhardness. AB - Sitnozrne prevlake nikla su elektrodeponovane iz sulfamatnog kupatila na različitim supstratima: hladno-valjanom polikristalnom bakru i monokristalnom silicijumu (111) orijentacije. Uticaj supstrata i odabranih parametara elektrodepozicije na mehanička i strukturna svojstva ovih kompozitnih struktura ispitivan je testovima mikrotvrdoće po Vickers-u pri različitim opterećenjima. Iznad kritične dubine utiskivanja, izmerena vrednost tvrdoće nije tvrdoća elektrodeponovanog filma, već takozvana 'kompozitna mikrotvrdoća', jer supstrat učestvuje u plastičnoj deformaciji tokom procesa utiskivanja. Odabrana su dva modela kompozitne tvrdoće bazirana na različitim principima (model Chicot-Lesage i Korsunsky) i primenjena na eksperimentalne rezultate u cilju izračunavanja tvrdoće filma. Vrednosti mikrotvrdoće elektrodeponovanih prevlaka nikla zavise od vrednosti gustine struje. Povećanje gustine struje vodi smanjenju veličine zrna i povećanju vrednosti mikrotvrdoće. PB - Serbian Chemical Society, Belgrade T2 - Journal of the Serbian Chemical Society T1 - Micromechanical and structural properties of nickel coatings electrodeposited on two different substrates T1 - Mikromehanička i strukturna svojstva elektrodeponovanih prevlaka nikla na različitim supstratima EP - 831 IS - 7 SP - 817 VL - 74 UR - https://hdl.handle.net/21.15107/rcub_technorep_1379 ER -
@article{ author = "Lamovec, Jelena and Jović, Vesna and Aleksić, Radoslav and Radojević, Vesna", year = "2009", abstract = "Fine-structured nickel coatings were electrodeposited from a sulfamate-based electrolyte onto different substrates: polycrystalline cold-rolled copper and single crystal silicon with (111) orientation. The influence of the substrate layers and chosen plating conditions on the mechanical and structural properties of these composite structures were investigated by Vickers microhardness testing for different loads. Above a certain critical penetration depth, the measured hardness value was not the hardness of the electrodeposited film, but the so-called 'composite hardness', because the substrate also participated in the plastic deformations during the indentation process. Two composite hardness models (Chicot-Lesage and Korsunsky), constructed on different principles, were chosen and applied to the experimental data in order to distinguish film and substrate hardness. The microhardness values of the electrodeposited nickel layers were mainly influenced by the current density. Increasing the current density led to a decrease in grain size, which resulted in higher values of the microhardness., Sitnozrne prevlake nikla su elektrodeponovane iz sulfamatnog kupatila na različitim supstratima: hladno-valjanom polikristalnom bakru i monokristalnom silicijumu (111) orijentacije. Uticaj supstrata i odabranih parametara elektrodepozicije na mehanička i strukturna svojstva ovih kompozitnih struktura ispitivan je testovima mikrotvrdoće po Vickers-u pri različitim opterećenjima. Iznad kritične dubine utiskivanja, izmerena vrednost tvrdoće nije tvrdoća elektrodeponovanog filma, već takozvana 'kompozitna mikrotvrdoća', jer supstrat učestvuje u plastičnoj deformaciji tokom procesa utiskivanja. Odabrana su dva modela kompozitne tvrdoće bazirana na različitim principima (model Chicot-Lesage i Korsunsky) i primenjena na eksperimentalne rezultate u cilju izračunavanja tvrdoće filma. Vrednosti mikrotvrdoće elektrodeponovanih prevlaka nikla zavise od vrednosti gustine struje. Povećanje gustine struje vodi smanjenju veličine zrna i povećanju vrednosti mikrotvrdoće.", publisher = "Serbian Chemical Society, Belgrade", journal = "Journal of the Serbian Chemical Society", title = "Micromechanical and structural properties of nickel coatings electrodeposited on two different substrates, Mikromehanička i strukturna svojstva elektrodeponovanih prevlaka nikla na različitim supstratima", pages = "831-817", number = "7", volume = "74", url = "https://hdl.handle.net/21.15107/rcub_technorep_1379" }
Lamovec, J., Jović, V., Aleksić, R.,& Radojević, V.. (2009). Micromechanical and structural properties of nickel coatings electrodeposited on two different substrates. in Journal of the Serbian Chemical Society Serbian Chemical Society, Belgrade., 74(7), 817-831. https://hdl.handle.net/21.15107/rcub_technorep_1379
Lamovec J, Jović V, Aleksić R, Radojević V. Micromechanical and structural properties of nickel coatings electrodeposited on two different substrates. in Journal of the Serbian Chemical Society. 2009;74(7):817-831. https://hdl.handle.net/21.15107/rcub_technorep_1379 .
Lamovec, Jelena, Jović, Vesna, Aleksić, Radoslav, Radojević, Vesna, "Micromechanical and structural properties of nickel coatings electrodeposited on two different substrates" in Journal of the Serbian Chemical Society, 74, no. 7 (2009):817-831, https://hdl.handle.net/21.15107/rcub_technorep_1379 .