Considerations in Electrodeposition of Compositionally Modulated Alloys

Tench, D.; White, J. T.

doi:10.1149/1.2086160

Cited by 65 publications

(38 citation statements)

References 11 publications

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“…Following mechanical properties were mainly investigated: Young's modulus [98], hardness [115], and tensile strength [107,[115][116][117]. It is shown that all investigated properties depend on the thickness of the individual layers and that in all cases multilayered structures showed better properties than that of pure metals and/or their alloys.…”

Section: Mechanical and Magnetic Properties Of Multilayered Structuresmentioning

confidence: 99%

“…1.46 The hardness of the deposit containing Cu/Ni À 100 layers as a function of the thickness of individual layers (Reprinted from [115] with the permission of Elsevier) Fig. 1.47 The tensile strength of the multilayered deposits as a function of the thickness of individual layers: open circle- [107]; open square- [117]; open triangle- [118]; open inverted triangle- [108] (Reprinted from [109] with the permission of Elsevier) mainly the consequence of different parameters of the deposition process (bath composition, pulse regimes, temperature, etc.). A common explanation for the decrease of tensile strength with the increase of individual layer thickness (after the maximum value) is the increase of the coherence of the intermediate layer.…”

Section: Mechanical and Magnetic Properties Of Multilayered Structuresmentioning

confidence: 99%

See 1 more Smart Citation

Electrodeposition and Characterization of Alloys and Composite Materials

Jović¹,

Lačnjevac²,

Jović³

2014

Electrodeposition and Surface Finishing

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Section: Mechanical and Magnetic Properties Of Multilayered Structuresmentioning

confidence: 99%

Section: Mechanical and Magnetic Properties Of Multilayered Structuresmentioning

confidence: 99%

Electrodeposition and Characterization of Alloys and Composite Materials

Jović¹,

Lačnjevac²,

Jović³

2014

Electrodeposition and Surface Finishing

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“…As soon as the deposited Co layer is completely covered with Au, the deposition process stops. Therefore, the process under open-circuit conditions is defined as a diffusion-controlled reaction that yields no faradic reactions [8,67]. In order to estimate the Au-layer thickness under the open circuit condition, first, a series of Co nanowire samples with a length of 4 mm was deposited during chronoamperometry experiments.…”

Section: Template Synthesis Of 2 Nm Au/4 Nm Co Multilayered Nanowire mentioning

confidence: 99%

“…In the case of longer cylinders (d Co ¼ 50 nm), the axis along the wire starts to become the easy axis (lower saturation field) as expected in the limit where d Ag ¼ 0 (single Co nanowires), due to the shape anisotropy. Again, in both directions, a low remanence was measured leading to an intricate magnetic domain configuration at zero fields [67][68][69][70][71] which requires more characterizations for its elucidation (Figure 4.15).…”

Section: Magnetic Properties Of Nanowire Arraysmentioning

confidence: 99%

Template Synthesis of Magnetic Nanowire Arrays

Valizadeh

Strömberg

Strömme

2008

Nanostructured Materials in Electrochemistry

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IntroductionDuring the late 20th century, the growing interest in creating advanced materials using nanoscaled building blocks was employed to develop synthetic techniques for re-engineering existing materials to novel functional materials such as quantum dots, nanodots, nanorods, nanotubes, nanofibrils and quantum wires. These nanowires can act as one-dimensional conductors with interesting electronic and optical properties. Moreover, nanowires may find applications in ultrasensitive chemical and biological sensors.To date, a physical vapor deposition (PVD) technique followed by lithography is usually considered to represent the ultimate method for producing nanoscaled materials. Although a number of successful efforts have been reported on the fabrication of freestanding nanopillars or nanowells using lithographic techniques, there is a whole range of potential obstacles for these approaches. These arise mainly from the fact that, when the technologies are pushed to smaller sizes, the cost rapidly escalate and the tolerances are more difficult to maintain. The lithographic processes used to pattern nanoelectronic structures also currently limit the dimensions of the electronic components such as nanowires. Optical lithography is limited by the wavelength of the light used to produce the wires. Consequently, the wavelength of light used is moving into the deeper regions of the ultraviolet (UV) spectrum, and the cost of fabricating optical components to achieve this is expected to rise at an astronomic rate. These challenges have forced many to seek new nanofabrication techniques, especially those which grow nanostructures directly in the openings of a template. One of the most successful approaches to these nanofabrication methods is known as the membrane-based synthesis of nanomaterials [1][2][3][4], where the membrane acts as a template for the electrodeposition of multilayered nanowires, as well as for single metallic nanowires [5,6]. The advantage of using template synthesis of nanowires is that it can be considered as an alternative solution to overcome the difficulty in fabricating fibrils with very small diameters by lithographic methods [7].

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“…The presence of less than perfect cylindrical ion track etched pores is related to the statistical nature of the ionization spikes and breaking of chemical bonds in the polymers along the particle trajectory. [27] X-ray diffraction (XRD) analysis of 20 lm thick polycarbonate membranes deposited with 99.9 wt.-% Au and 98 wt.-% Co nanowire arrays are shown in Figure 5. XRD analysis of a virgin membrane with a 500 nm sputter-deposited Au layer was performed and the peaks compared to electrodeposited Au.…”

Section: Deposition Of Pure Au and Co Nanowiresmentioning

confidence: 99%

Template Synthesis of Au/Co Multilayered Nanowires by Electrochemical Deposition

Valizadeh¹,

Hultman²,

George³

et al. 2002

Adv Funct Materials

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The electrochemical deposition of Au/Co multilayers into 20 μm‐thick ion track etched polycarbonate membranes with pore diameters of 110–150 nm was studied in a single electrolyte containing cobalt sulfate, gold cyanide, and citric acid. Cyclic voltammetry, chronoamperometry, and pulse‐potential experiments were used to determine the deposition conditions for pure Au and 98 wt.‐% Co layers. The Co‐rich metallic nanowires were deposited at –1100 mV and the Au nanowires at –490 mV vs. Ag/AgCl. Under open‐circuit conditions an Au‐displacement reaction occurred. Open‐circuit conditions were applied in combination with a steep ramp between the Co and Au potential pulses to avoid the otherwise severe Co dissolution when the potential was switched to less negative values. Scanning and transmission electron microscopy of the deposited multilayered nanowires revealed dense and well‐defined layer interfaces. X‐ray diffraction investigations of 20 μm long Au and Co nanowires showed that the Au deposits exhibit a face‐centered cubic (fcc) <111> texture, while the Co deposits exhibit a hexagonal close‐packed (hcp) (002) structure. The magnetic measurements of 12 nm Co/4 nm Au nanowires for fields applied parallel and perpendicular to the film plane indicate a low remnant magnetization.

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Considerations in Electrodeposition of Compositionally Modulated Alloys

Cited by 65 publications

References 11 publications

Electrodeposition and Characterization of Alloys and Composite Materials

Electrodeposition and Characterization of Alloys and Composite Materials

Template Synthesis of Magnetic Nanowire Arrays

Template Synthesis of Au/Co Multilayered Nanowires by Electrochemical Deposition

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