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

Shilyaeva, Yu. I.; Bardushkin, V. V.; Гаврилов, С. А.; Silibin, Maxim V.; Yakovlev, V. B.; Боргардт, Н. И.; Волков, Р. Л.; Смирнов, Д. И.; Zheludkevich, Mikhail L.

doi:10.1039/c4cp02436b

Cited by 16 publications

(4 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the range of 2Θ angles up to 30°, a non‐linear background is marked because of the scattering of X‐rays on the amorphous Al 2 O 3 phase. In addition to the signals related to the deposited metals at the diffractograms, peaks corresponding to the metal contact layer (Ti and Cu), and sometimes aluminium, probably remaining after etching when forming the membranes, can be observed.…”

Section: Resultsmentioning

confidence: 99%

Anodic aluminium oxide templates for synthesis and study of thermal behaviour of metallic nanowires

Shilyaeva

Гаврилов

Дудин

et al. 2015

Surface & Interface Analysis

View full text Add to dashboard Cite

Metallic nanowires are used as functional components of electronic devices in the form of arrays or are incorporated into nanocomposites or complex architectures with valuable properties. All three cases can be implemented on the basis of spatially ordered matrices of anodic aluminium oxide. However, as is known, the behaviour of particles enclosed in the pores of a matrix may differ from that of particles in a free state because of the influence of the interphase boundary 'matrixparticle'. In this work, we investigate the role of the matrix in the study of the properties of metal nanowires in the matrix of anodic aluminium oxide. A significant part of the article is devoted to an overview of the methodological aspects of the characterization of their morphology, geometrical parameters and thermal behaviour. Using the example of the alumna matrix with artificially given geometrical parameters, it is shown that the temperature characteristics of phase transitions observed by differential scanning calorimetry strongly depend on the distribution of nanowires in the alumna matrix according to their size, which requires detailed processing of the data obtained for the correct definition of the corresponding temperatures of phase transitions.

show abstract

Section: Resultsmentioning

confidence: 99%

Anodic aluminium oxide templates for synthesis and study of thermal behaviour of metallic nanowires

Shilyaeva

Гаврилов

Дудин

et al. 2015

Surface & Interface Analysis

View full text Add to dashboard Cite

show abstract

“…The actual structure of composites must be taken into account when conducting simulations, as described earlier [Shilyaeva et al 2014]. As it is known, AAO consists of densely packed hexagonal cells that are adjacent to each other with their sides.…”

Section: Formulation Of the Problem And Modelmentioning

confidence: 99%

Untitled

2016

J. Mech. Mater. Struct.

View full text Add to dashboard Cite

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.

show abstract

“…This can be important in solving many problems of tribomaterials science, micro-and nanoelectronics, geophysics, etc. Among them are texture formation in polycrystalline media [13] or prediction of melting temperature of crystalline metallic nanowires embedded into the refractory matrix of porous anodic alumina [14].…”

Section: Introductionmentioning

confidence: 99%

Bulk strain energy density in randomly reinforced polymer composites with antifriction dispersed additives

Колесников

Bardushkin

Сычев³

et al. 2016

Phys Mesomech

Self Cite

View full text Add to dashboard Cite

Bulk strain energy density was numerically simulated for epoxy-phenol-based composites randomly reinforced with short polyimide fibers, with antifriction dispersed polytetrafluoroethylene (PT.E) additives. A mathematical model was constructed using the notion of a stress concentration operator (fourth-rank tensor) that relates volume averaged, or external, stresses within a heterogeneous material with their local values within an individual heterogeneity. The simulation was based on a generalized singular approximation of random field theory used to solve a stochastic differential equation of equilibrium of an elastic medium. This approximation yields an explicit expression for stress concentration in a composite material. The explicit expression allows one to analyze the distribution of bulk strain energy density depending on the composition, structure, volume and mass fraction of heterogeneities, and on the type and value of applied load. We studied how the considered energy characteristic depends on the type of external mechanical loading and concentration of isotropic components in the model composites. It is shown that with the increasing concentration of polyimide fibers at a fixed concentration of PT.E inclusions, the bulk strain energy density values of all components decrease and approach each other independently of the type of external loading. The form of these dependences is nonlinear. A change in the mass fraction of dispersed PT.E inclusions in the model composites exerts little effect on local energy values of all components under any of the considered applied external loads.

show abstract

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

Cited by 16 publications

References 34 publications

Anodic aluminium oxide templates for synthesis and study of thermal behaviour of metallic nanowires

Anodic aluminium oxide templates for synthesis and study of thermal behaviour of metallic nanowires

Untitled

Bulk strain energy density in randomly reinforced polymer composites with antifriction dispersed additives

Contact Info

Product

Resources

About