Materials Literature
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Asymmetric multidentate ligands H2Ln formed unique nonanuclear Ni( ii ) complexes, [Ni 9 (L n ) 6 (OH) 6 (H 2 O) 6 ] via self-assembly. A corner-sharing tetrahedron-type structure, [Ni 7 (μ 3 -OH) 6 ] 8+ , and terminal mononuclear units constitute the nonanuclear structure in a [1-7-1] formation.
The purpose of this article is to provide a comparative analysis of hydraulic characteristics of some modern organic coatings used for trenchless rehabilitation of engineering pipelines. Scotchkote 169HB pipeline inner protective coating manufactured by «3M» production company (USA) and Subcote FLP coating by «Group P…
Confined water could adopt new forms not seen in the open air, such as a two-dimensional (2D) square ice trapped between two graphene sheets [Algara-Siller et al., Nature 519, 443–445 (2015)]. In this study, in order to investigate how the flexibility of graphene affects the confined structure of water molecules, we e…
The nature of the encapsulated halide governs the shape and dimensions of cages in [Bu 4 N] 2 [V 8 O 16 (oda) 4 ⊂2Cl] and [Bu 4 N][V 4 O 8 (glut) 2 ⊂F] complexes, by the template effect.
We investigate the electronic-transport properties of two-dimensional monolayer films from Au-P-Au molecular junction to Au-Si-Au molecular junction using elastic scattering Green’s function theory. In the process of replacing the P atoms with Si atoms every other line from the middle of monolayer blue phosphorus mole…
Physical properties are known to be drastically varied with crystallite size and in a multifunctional material this size reduction is seem to be interesting. One such material is chosen as LaFeO3 nanoparticles which have been prepared by wet-chemical route. The average particle size found to be in the order of 45nm in…
bacteria (MICs of 40,000 and 160,000 ppm). Collection of particles aerosolized from these two products onto films of the same bacteria inhibited bacterial growth; however, the mass concentration deposited onto bacterial films was lower than the MICs. Furthermore, these two nanoproducts had the lowest silver concentrat…
The paper is devoted to the problems related to buckling analysis of graphene sheets without and with vacancies in the structure under different boundary conditions. The analysis was performed by the classical numerical treatment – the finite element method (FEM). The graphene sheets were modelled by beam elements. In…
This book deals with the different forms of corrosion for copper and its alloys. It provides previously unpublished or hard-to-find data, providing a unique reference point for data on the corrosion of copper alloys. The book's chapters cover the following topics: Copper alloys (composition and properties)Film formati…
This chapter covers the qualification of welding, brazing, and plastic fusing procedures and the qualification of individuals performing those procedures as prescribed in Section IX of the ASME Boiler & Pressure Vessel Code. It reviews the qualification rules and provides commentary on those requirements. Where commen…
In this paper we derive a closed-form solution for the problem of a second gradient elastic circular thick-walled cylinder subjected to some axisymmetric loading conditions and deformed in plane strain. The second gradient elastic model used is the one of Gologanu, Leblond, Perrin and Devaux proposed some years ago an…
In this work dependence between structure, surface and reactivity of SiO2 is investigated. Different samples are prepared with and without the presence of calcium cations and are characterized by different techniques. The FTIR frequency shifting of the bridging oxygen stretching vibration Si–O–Si and the binding energ…
It is very difficult for single ceria to be used as an electrocatalyst because of its relatively poor electron conductivity and rare number of oxygen vacancy. Recently, it has been studied in the field of CO catalysis by doping transition metallic or non-metallic elements to improve the catalytic ability of ceria, whi…
Thermoluminescence (TL) of borates is remarkable in the field of radiation dosimetry because they can detect both neutron and gamma radiations. Usually, the TL efficiency of pure borates is low and hence dopants have to be added to increase their TL output. Their sensitivity and thermal stability vary widely and depen…
Sakhaite, ca. Ca 48 Mg 16 (BO 3 ) 32 (CO 3 ) 16 (HCl,H 2 O) 2 , is a rare rock-forming borate-carbonate mineral typically occurring in high-temperature, low-pressure calcareous skarns. It forms a complete solid solution with harkerite, ca. Ca 48 Mg 16 [AlSi 4 (O,OH) 16 ] 4 (BO 3 ) 16 (CO 3 ) 16 (HCl,H 2 O) 2 . The sol…
In design of aircraft it is important to use light-weight, but mechanically strong materials and for this purpose, many new composite structures have been developed, mostly based on strong fibers and a binding resin. In this research a possibility is considered to reinforce composite based on carbon fibers and epoxy r…
In this paper, we determined some mechanical properties of a new category of green composites, based on tensile tests.More precisely, we selected a set of samples from a new bio-resin based on Dammar and two sets of samples from green-composites with matrix by bio-resin and reinforced with almost compact layers of Typ…
Nanoparticles are extensively used in various therapeutic and diagnostic biomedical applications. In this work, polyvinyl alcohol coated magnesium oxide (PAMO) nanoparticles has been prepared using co-precipitaion method. The prepared nanoparticles were characterized an using UV (Ultraviolet)-Visible spectroscopy, and…
It was shown in previous works that iron sublattice in the structure of cementite Fe3C has four different types of interstitial sites that may potentially be occupied by carbon atoms, viz. ‘normal’ and ‘distorted’ prismatic (NP, DP) and ‘normal’ and ‘distorted’ octahedral (NO, DO) sites. Distances between their centre…
Triazoloazepinium bromides act as biocides against sulfate-reducing bacteria and can produce an effect on mild steel microbial corrosion. It has been established that under the competing adsorption, the compounds with the properties of corrosion inhibitors can form a film, which protects the steel surface, before it i…