Materials Literature
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The commonly used equivalent circuits for electrochemical impedance spectroscopy (EIS) testing in reinforcing steel corrosion in concrete have been reviewed,and the advantages and disadvantages of different equivalent circuits were discussed.Appropriate equivalent circuits were selected and analysed for EIS fitting ac…
A method to precipitate nanoparticles using a miniemulsion technique is described, in which miniemulsion droplets between 100 and 1000 nm in size serve as nanoreactors enabling both the control of particle formation and particle growth. The application of miniemulsion droplets to synthesise nanoparticles comprises thr…
Given a bipartite graph H and a positive integer n such that v(H) divides 2n, we define the minimum degree threshold for bipartite H-tiling, δ2(n, H), as the smallest integer k such that every bipartite graph G with n vertices in each partition and minimum degree δ(G) ≥ k contains a spanning subgraph consisting of ver…
Active brazing of ceramic to metal is reviewed in this paper. As one of the key aspect in joint techniques, active brazing has been developed to simplify the manufacturing procedure of brazed joints between ceramic and metal. The active filler metal includes Ag-Cu-Ti series, Cu-Ti series, Co-Ti series and so on. The a…
We use molecular dynamics simulations to study the static properties of a single linear multiblock copolymer chain under poor solvent conditions varying the block length N, the number of blocks n, and the solvent quality by variation of the temperature T. We study the most symmetrical case, where the number of blocks…
The influence of Mn on the corrosion of Al-free Mg-alloys
講 座 ステンレス鋼活用の基礎知識 -歴史，特性
A non-invasive method to quantify the stress distribution in polymer-based materials is presented through the piezospectroscopic calibration of alumina-epoxy nanocomposites. Three different alumina volume fraction nanocomposites were created and loaded under uniaxial compression in order to determine the relationship…
A magnesium norphthalocyanine (6a) was prepared by the mixed condensation of phthalonitrile in excess with the dithiomaleonitrile bearing two TTF units (5), using Mg(I1) as a template.Subsequent demetalation of 6a with acetic acid gave 6b in good yield.The structures of target compounds were determined by EA, NMR and…
Se describe la implementación de un sistema de bajo costo spin-coating para depositar películas delgadas de materiales disueltos en un solvente volátil. El sistema puede ser fácilmente construido con el conocimiento interdisciplinario de la mecánica, mecánica de fluidos y la electrónica a nivel de pregrado. El sistema…
In this paper, the influence of two types of imidazolium-based ionic liquids (ILs) on the properties of sycamore maple (Acer pseudoplatanus) veneers, at 25 0 C, 60 0 C and 80 0 C has been studied by using contact angle measurements and Fourier transform infrared spectroscopy analysis.The measurements showed that wood…
Despite their obvious importance for theproperties of paper, relatively little is known on thedeformation and damage mechanisms of inter-fibrebonds, compared to the fibres. In order to tailor theproperties of fibre network materials, bybiochemical and/or mechanical modifications of thefibre wall and fibre surfaces, be…
22MnB5/Usibor1500 is a hot-dip aluminized manganese-boron steel grade that is used withinthe car manufacturing industry and as lasers are increasingly used for welding of the car bodythe amount of research concerning laser welding of this material follows. For thicker materialthe laser hybrid arc welding process has g…
The objective of the ARBOR 2 irradiation programme was to study the effects of low-temperature (330-340 °C) high dose (up to 70 dpa) neutron irradiation on the mechanical properties of the European reference structural material for the Demonstration Reactor (DEMO), EUROFER97, its Oxide Dispersion Strengthened (ODS) va…
Outgoing from energy conservation and the second law of thermodynamics we derive a thermo-mechanically coupled model for shape memory alloys. Additionally, we introduce a field function which allows for the modification of the dissipation coefficient. All together, the model is capable to display the localized phase t…
A combination of doctor blading and emulsion templating was used to prepare macroporous poly(styrene-co-divinylbenzene-co-2-ethylhexylacrylate) and poly(styrene-co-divinylbenzene) membranes with an interconnected porous structure. Water in oil high internal phase emulsions including monomers in the oil phase were cast…
The friction sensitivity(FS) of five aliphatic linear and eight cyclic nitramines has been determined and correlated with DFT B3LYP/6-31-G(d,p) // 6-311+G(d,p) positive(VS,max) and negative(VS,min) extremes of molecular surface electrostatic potentials VS(r).While there is an ambiguous relationship between the VS,max…
Calcium Barium tartrate single crystals were grown in silica gel at ambient temperature. Effect of various parameters like gel pH, and gel aging, gel density and concentration of reactants on the growth of these crystals were studies. Crystals having different morphologies and habits were obtained. Whitish semitranspa…
The detailed analysis of atomic and magnetic structure has been performed by Mössbauer spectroscopy for polycrystalline Fe80Ga20 films of different thickness ranging from 20 nm to 200 nm.The films were deposited on Si(100) substrate using dual sputtering and evaporation method.Obtained CEMS spectra have been fitted wi…
The decomposition of hydrogen peroxide in presence of some metal oxides as a heterogeneous & heterogenized catalyst has been investigated by measuring the evolution of oxygen at different time intervals in the temperature range 30-600C. The catalytic activity is increased, an increase in the amount of catalyst and pH.…