Bulk density of the energy of deformation in an anodic aluminum oxide with pores filled by threadlike metal nanocrystals

Shilyaeva, Yu. I.; Bardushkin, V. V.; Гаврилов, С. А.; Silibin, Maxim V.; Yakovlev, V. B.; Pyatilova, O. V.

doi:10.1134/s0036024413100178

Cited by 5 publications

(6 citation statements)

References 3 publications

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“…(a) a correlation between the distance between the nanowires and structural parameters that can be measured directly, and (b) the derivation of mathematical formulas convenient for numerical analysis without losing information about the structure of the composite [Bardushkin and Yakovlev 2011;Kolesnikov et al 2005;Shilyaeva et al 2013b;2013a;2014].…”

Section: Formulation Of the Problem And Modelmentioning

confidence: 99%

Predictive modeling of mechanical properties of metal filled anodic aluminum oxide

Bardushkin

Shilyaeva

Гаврилов

et al. 2016

J. Mech. Mater. Struct.

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Filling dielectric porous matrices, particularly anodic aluminum oxide, with metal confers a promising solution for nanocomposite creation. In this regard, the problem of estimating and predicting the physical and mechanical properties of such materials is of prime importance. The present work focuses on the numerical modeling of the effective and ultimate stress-strain (under compression) characteristics of nanocomposites based on anodic aluminum oxide with unidirectional filamentary pores filled with different metals (In, Sn, and Zn). The dependences of the tensor components of the effective elastic moduli, coefficients of elastic anisotropy (in different directions), and compression strength (along the nanowires) on the structure parameters and the concentration of nanowires are investigated.

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Section: Formulation Of the Problem And Modelmentioning

confidence: 99%

Predictive modeling of mechanical properties of metal filled anodic aluminum oxide

Bardushkin

Shilyaeva

Гаврилов

et al. 2016

J. Mech. Mater. Struct.

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show abstract

Section: Formulation Of the Problem And Modelmentioning

confidence: 99%

Untitled

2016

J. Mech. Mater. Struct.

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A theoretical study is conducted on an orthotropic solid with a nanodefect (e.g., inclusion, hole, or crack) under far-field antiplane shear loading. A rigorous analytical solution of the stress fields is presented using the Gurtin-Murdoch surface/interface model and a conformal mapping technique. Several new and existing solutions are considered for the special and degenerated cases. The major results of the study are as follows:(1) Interface stresses are greatly dependent on size when the size of a defect is at the nanometer scale, and the interface stresses approach the classical elasticity results when a defect has large characteristic dimensions.(2) The interface effect of a nanodefect decreases with an increase in defect section aspect ratio.(3) When the modulus of the defect (inclusion) increases, the interface effect decreases, i.e., the interface effect can be neglected when the inclusion is sufficiently hard.

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“…DE can be calculated using relation (5) when the volume concentration of wires in the composite and relations (13)- (15) for calculations E(r) = E w and E(r) = E m (according to formula (9)) are known. Thus, the model built for metal nanowires-AAO composites allows us to take into account the radius of wires and their concentration and can be used for modeling thermoelastic characteristics 24,25,43,44 as well as melting processes of nanowires embedded in a refractory matrix (see (3)).…”

Section: Derivation Of Modelmentioning

confidence: 99%

“…Thus, the model built for metal nanowires-AAO composites allows us to take into account the radius of wires and their concentration and can be used for modeling thermoelastic characteristics 24,25,43,44 as well as melting processes of nanowires embedded in a refractory matrix (see ( 3)).…”

Section: Derivation Of Modelmentioning

confidence: 99%

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Melting temperature of metal polycrystalline nanowires electrochemically deposited into the pores of anodic aluminum oxide

Shilyaeva

Bardushkin

Гаврилов

et al. 2014

Phys. Chem. Chem. Phys.

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The arrays of metallic nanowires are considered as promising precursors for 1D semiconductor nanostructures after appropriate treatment at temperatures close to the melting point. Therefore the melting behaviour of the metallic structures in oxide templates is a key parameter for the subsequent conversion process. The present paper focuses on understanding of the effect of mechanical stress generated during heating on the melting point of the metal nanowires deposited into the pores of anodic alumina. Extremely high local compressive stress appears due to the difference in the thermal coefficients of the oxide template and nanowires inside the pores. The effect of the composite structural parameter that may be related to the concentration of nanowires on the melting temperature has been investigated. A numerical model predicting the melting point has been developed for composites with indium, tin, and zinc nanowires. The simulation results obtained using the suggested model were compared with the experimental data.

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Bulk density of the energy of deformation in an anodic aluminum oxide with pores filled by threadlike metal nanocrystals

Cited by 5 publications

References 3 publications

Predictive modeling of mechanical properties of metal filled anodic aluminum oxide

Predictive modeling of mechanical properties of metal filled anodic aluminum oxide

Untitled

Melting temperature of metal polycrystalline nanowires electrochemically deposited into the pores of anodic aluminum oxide

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