DC electrodeposition of NiGa alloy nanowires in AAO template

Maleki, K.; Sanjabi, S.; Alemipour, Z.

doi:10.1016/j.jmmm.2015.07.069

Cited by 15 publications

(4 citation statements)

References 18 publications

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“…Later, binary allo nanowires were prepared [48]. Some of the most interesting binary nanowires for HA research were the Permalloy, Galfenol, or NiGa nanowires [49][50][51]. In this research, th possibility of co-electrodeposition of iron-gallium, nickel-iron, and other HA constituent was shown, enabling the electrodeposition of ternary HA nanomaterials.…”

Section: Heusler Alloy Nanowiresmentioning

confidence: 87%

Electrodeposited Heusler Alloys-Based Nanowires for Shape Memory and Magnetocaloric Applications

Varga,

Galdun,

Vronka

et al. 2024

Materials

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In this article, the downsizing of functional Heusler alloys is discussed, focusing on the published results dealing with Heusler alloy nanowires. The theoretical information inspired the fabrication of novel nanowires that are presented in the results section of the article. Three novel nanowires were fabricated with the compositions of Ni66Fe21Ga13, Ni58Fe28In14, and Ni50Fe31Sn19. The Ni66Fe21Ga13 nanowires were fabricated, aiming to improve the stoichiometry of previous functional Ni-Fe-Ga Heusler nanomaterials with a functional behavior above room temperature. They exhibit a phase transition at the temperature of ≈375 K, which results in a magnetocaloric response of |ΔSM| ≈ 0.12 J·kg−1·K−1 at the magnetic field change of only μ0ΔH = 1 T. Novel Heusler alloy Ni58Fe28In14 nanowires, as well as Ni50Fe31Sn19 nanowires, are analyzed for the first time, and their magnetic properties are discussed, introducing a simple electrochemical approach for the fabrication of nanodimensional alloys from mutually immiscible metals.

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Section: Heusler Alloy Nanowiresmentioning

confidence: 87%

Electrodeposited Heusler Alloys-Based Nanowires for Shape Memory and Magnetocaloric Applications

Varga,

Galdun,

Vronka

et al. 2024

Materials

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“…Antara membran yang menjadi pilihan utama para penyelidik adalah membran alumina berliang (AAO) (Han et al 2015;Maleki et al 2015;Schelhas et al 2015;Zhang & Jiao 2015). Ini kerana AAO mempamerkan ciri liang yang tegak, berserenjang dengan permukaan membran, seragam di samping mempunyai kestabilan terma, mekanik dan kimia yang baik.…”

Section: Pengenalanunclassified

Pembentukan Cekung Berkualiti Tinggi Menggunakan Tempoh Penganodan yang Singkat bagi Penghasilan AAO

Saidin

Jumali²,

Kok

et al. 2016

JSM

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The quality of the AAO membrane prepared using two-step anodization technique is strongly influenced by the pre-textured concave indented during the first-step of anodization. This work was conducted to determine the optimum duration of anodization to produce a high quality of concaves. The anodization process was conducted using 0.3 M H 2 C 2 O 4 solution as an electrolyte at 40 V and 18°C applied voltage and temperature, respectively. Anodizing process was performed up to 6 h. The changes of the current during anodization process was recorded. After removal of the resulting oxide layer, the concaves formed were studied using FESEM. FESEM micrograph confirmed the formation of a uniform hexagonal concaves. Beside improving the uniformity, the extension of anodizing duration formed a well-defined arrangement of concaves with minimum defects. This work found that the optimum period to obtain a uniform and perfect concaves is between 4 and 6 h. This is because the extension of anodizing period caused the wall to collapse and creating larger, irregular pores. In addition, the underlying mechanism for concave formation was described in detail.

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“…1,3,[10][11][12] One method to form nanowires is to electrodeposit conducting materials inside the pores of porous anodic aluminium oxide (AAO) membranes. This has previously been employed in the production of nanowires of Ni, 13,14 Co, 13,14 Cu, 13,14 Fe, 13,14 Pd, 10,15 Au, 16 Sb, 17 Bi, 3 Ag 5 and Si, 18,19 as well as alloys of Pd-Ni, 20 Pd-Fe, 21 Pt-Co, 22 Ni-Ga 23 and Si-C, 24 and has the advantage that one end of the wire is electrically contacted by virtue of the electrodeposition method employed. One potential problem with electrodeposition into a porous structure is the narrow pore diameter and associated high aspect ratio, causing restricted diffusion of the metal ions to the bottom of the pore.…”

Section: Introductionmentioning

confidence: 99%