The Structures of Electrodeposits and the Properties that Depend on Them

Weil, R.

doi:10.1146/annurev.ms.19.080189.001121

Cited by 43 publications

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“…Internal stress is a form of macrostress (i.e. tensile or compressive) which may develop during electrodeposition (Weil 1989). There are two main causes of internal stress: i) defects, such as impurity atoms and dislocations, which can incorporate into the crystals during growth and cause volume expansion or shrinkage of the deposit; and ii) misorientation between adjacent grains resulting in poor fit (Gow et al 1979, Weil 1989.…”

Section: Mechanical Properties Of Iron Electrodepositsmentioning

confidence: 99%

“…tensile or compressive) which may develop during electrodeposition (Weil 1989). There are two main causes of internal stress: i) defects, such as impurity atoms and dislocations, which can incorporate into the crystals during growth and cause volume expansion or shrinkage of the deposit; and ii) misorientation between adjacent grains resulting in poor fit (Gow et al 1979, Weil 1989. Various electrodeposition parameters such as temperature, pH, current density, and electrolyte chemistry can contribute to the magnitude of internal stress that develops during electrodeposition (Gow et al 1979).…”

Section: Mechanical Properties Of Iron Electrodepositsmentioning

confidence: 99%

“…It has been well documented that the mechanical properties of electrodeposited materials are affected by the microstructure (Dini 1993, Watanabe 2004, Weil 1989. Columnar electrodeposits generally exhibit higher ductility but lower strength and hardness as compared to fibrous or fine-grained deposits (Dini 1993).…”

Section: Growth Direction Growth Directionmentioning

confidence: 99%

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Microstructural and Mechanical Characterization of Multilayered Iron Electrodeposits

Chan

McCrea

Palumbo

et al. 2011

AMR

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Multilayered iron electrodeposits composed of alternating layers of coarsegrained iron (grain size: 1.87 µm; (110) texture; hardness: 177 VHN) and fine-grained iron (grain size: 132 nm; (211) texture; hardness: 502 VHN), with layer thicknesses ranging from ~0.2-7 µm were successfully synthesized. The average hardness of the multilayered electrodeposits increased from 234 VHN to 408 VHN with decreasing layer thickness, consistent with a Hall-Petch type behaviour. In three-point bending tests, they failed in a macroscopically brittle manner although local ductility was observed in certain layers. Fractography analysis has shown that strain incompatibility between alternating layers contributes to the brittle nature of these materials. This study has demonstrated the possibility of applying a multilayered structure design to tailor the microstructure and mechanical properties of electrodeposited iron.iii ACKNOWLEDGEMENTS

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Section: Mechanical Properties Of Iron Electrodepositsmentioning

confidence: 99%

Section: Mechanical Properties Of Iron Electrodepositsmentioning

confidence: 99%

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Microstructural and Mechanical Characterization of Multilayered Iron Electrodeposits

Chan

McCrea

Palumbo

et al. 2011

AMR

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“…Several factors may contribute to this, such as mismatch between substrate and deposit, grain coalescence during growth and incorporation of electrolyte species or of hydrogen. [122][123][124][125] Internal stress can cause cracking of deposits or loss of adhesion. A good review of different methods for measuring stress in electrodeposits has been published in the early 1970s.…”

Section: Electrochemical Engineering Aspects Of Electrodepositionmentioning

confidence: 99%

Electrodeposition Science and Technology in the Last Quarter of the Twentieth Century

Landolt

2002

J. Electrochem. Soc.

126

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“…Although, the zinc electrodeposition is well recognized, the kinetic parameters related to this are unclear yet. Some reports in the literature propose that the zinc electrodeposition is fast, autocatalytic and controlled by electronic transfer charge 2,[6][7][8] other reports suggest a diffusion control. [9][10][11] Only few works report the nucleation parameters associated with zinc electrodeposition, especially on carbon substrates.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical study about zinc electrodeposition onto GCE and HOPG substrates

Granados-Ner¹,

Mendoza-Huízar²,

Ríos-Reyes³

2011

Quím. Nova

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We carried out an electrochemical study about zinc electrodeposition onto GCE and HOPG substrates from an electrolytic plating bath containing 0.01M ZnSO 4 + 1M (NH 4 ) 2 SO 4 at pH 7. Under our experimental conditions the predominant chemical species was the complex [ZnSO 4 (H 2 O) 5 ]. The chronoamperometric study showed that zinc electrodeposition follows a typical 3D nucleation mechanism in both substrates. The average ΔG calculated for the stable nucleus formation was 6.92 x 10 -21 J nuclei −1 and 1.35 x 10 -20 J nuclei −1 for GCE and HOPG, respectively. The scanning electron microscopy (SEM) images showed different nucleation and growth processes on GCE and HOPG substrates at same overpotential.

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The Structures of Electrodeposits and the Properties that Depend on Them

Cited by 43 publications

References 0 publications

Microstructural and Mechanical Characterization of Multilayered Iron Electrodeposits

Microstructural and Mechanical Characterization of Multilayered Iron Electrodeposits

Electrodeposition Science and Technology in the Last Quarter of the Twentieth Century

Electrochemical study about zinc electrodeposition onto GCE and HOPG substrates

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