Single step electrosynthesis of NiMnGa alloys

Berna Özkale; Fajer Mushtaq; Jordina Fornell; George Chatzipirpiridis; Lukas H.J. Martin; Jordi Sort; Carlos M. Müller; Eva Pellicer; Bradley J. Nelson; Salvador Pané

doi:https://doi.org/10.1016/j.electacta.2016.04.071

Single step electrosynthesis of NiMnGa alloys

Berna Özkale, Fajer Mushtaq, Jordina Fornell, George Chatzipirpiridis, Lukas H.J. Martin, Jordi Sort, Carlos M. Müller, Eva Pellicer, Bradley J. Nelson, Salvador Pané

Research output: Contribution to journal › Article › Research › peer-review

3 Citations (Scopus)

Abstract

© 2016 Elsevier Ltd. All rights reserved. An electrochemical synthesis route for NiMnGa alloys is presented. Thin films of NiMnGa were fabricated by single step electrodeposition from aqueous electrolytes using direct current over a range of current densities. By electrolyte tuning, homogeneous films with high Ga and Mn content could be achieved at current densities as high as -400 mA cm-2. Detailed compositional analysis of the alloys showed that growth was homogeneous and oxygen content was minimized. Films plated at very low current densities were found to be nanocrystalline/amorphous. In order to obtain fully crystalline samples, thermal annealing was carried out. Mechanical characterization was assessed by nanoindentation, and the effect of Ga content on mechanical properties was investigated.

Original language	English
Pages (from-to)	277-284
Journal	Electrochimica Acta
Volume	204
DOIs	https://doi.org/10.1016/j.electacta.2016.04.071
Publication status	Published - 20 Jun 2016

Keywords

NiMnGa
aqueous electrolyte
single step electrodeposition
thin films

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https://doi.org/10.1016/j.electacta.2016.04.071

https://ddd.uab.cat/record/170442

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title = "Single step electrosynthesis of NiMnGa alloys",

abstract = "{\textcopyright} 2016 Elsevier Ltd. All rights reserved. An electrochemical synthesis route for NiMnGa alloys is presented. Thin films of NiMnGa were fabricated by single step electrodeposition from aqueous electrolytes using direct current over a range of current densities. By electrolyte tuning, homogeneous films with high Ga and Mn content could be achieved at current densities as high as -400 mA cm-2. Detailed compositional analysis of the alloys showed that growth was homogeneous and oxygen content was minimized. Films plated at very low current densities were found to be nanocrystalline/amorphous. In order to obtain fully crystalline samples, thermal annealing was carried out. Mechanical characterization was assessed by nanoindentation, and the effect of Ga content on mechanical properties was investigated.",

keywords = "NiMnGa, aqueous electrolyte, single step electrodeposition, thin films",

author = "Berna {\"O}zkale and Fajer Mushtaq and Jordina Fornell and George Chatzipirpiridis and Martin, {Lukas H.J.} and Jordi Sort and M{\"u}ller, {Carlos M.} and Eva Pellicer and Nelson, {Bradley J.} and Salvador Pan{\'e}",

year = "2016",

month = jun,

day = "20",

doi = "https://doi.org/10.1016/j.electacta.2016.04.071",

language = "English",

volume = "204",

pages = "277--284",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier Limited",

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TY - JOUR

T1 - Single step electrosynthesis of NiMnGa alloys

AU - Özkale, Berna

AU - Mushtaq, Fajer

AU - Fornell, Jordina

AU - Chatzipirpiridis, George

AU - Martin, Lukas H.J.

AU - Sort, Jordi

AU - Müller, Carlos M.

AU - Pellicer, Eva

AU - Nelson, Bradley J.

AU - Pané, Salvador

PY - 2016/6/20

Y1 - 2016/6/20

N2 - © 2016 Elsevier Ltd. All rights reserved. An electrochemical synthesis route for NiMnGa alloys is presented. Thin films of NiMnGa were fabricated by single step electrodeposition from aqueous electrolytes using direct current over a range of current densities. By electrolyte tuning, homogeneous films with high Ga and Mn content could be achieved at current densities as high as -400 mA cm-2. Detailed compositional analysis of the alloys showed that growth was homogeneous and oxygen content was minimized. Films plated at very low current densities were found to be nanocrystalline/amorphous. In order to obtain fully crystalline samples, thermal annealing was carried out. Mechanical characterization was assessed by nanoindentation, and the effect of Ga content on mechanical properties was investigated.

AB - © 2016 Elsevier Ltd. All rights reserved. An electrochemical synthesis route for NiMnGa alloys is presented. Thin films of NiMnGa were fabricated by single step electrodeposition from aqueous electrolytes using direct current over a range of current densities. By electrolyte tuning, homogeneous films with high Ga and Mn content could be achieved at current densities as high as -400 mA cm-2. Detailed compositional analysis of the alloys showed that growth was homogeneous and oxygen content was minimized. Films plated at very low current densities were found to be nanocrystalline/amorphous. In order to obtain fully crystalline samples, thermal annealing was carried out. Mechanical characterization was assessed by nanoindentation, and the effect of Ga content on mechanical properties was investigated.

KW - NiMnGa

KW - aqueous electrolyte

KW - single step electrodeposition

KW - thin films

U2 - https://doi.org/10.1016/j.electacta.2016.04.071

DO - https://doi.org/10.1016/j.electacta.2016.04.071

M3 - Article

VL - 204

SP - 277

EP - 284

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

ER -

Single step electrosynthesis of NiMnGa alloys

Abstract

Keywords

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