Materials Literature
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This paper aims at the investigation of photocatalytic properties of titanium dioxide coatings covering on the surfaces of long blue-emitting afterglow CaAl2O4:Eu2+, Nd3+ elaborated by a sol-gel method. Morphologies and microstructures of the coatings were observed mainly by transmission electron microscopy (TEM) and…
Abstract The ferrites powders of the compound NiAltFe2‐tO4 were produced up to technology of sol‐gel autocombustion. In accordance with x‐ray defractional analysis data the powder particles’ size is 18–33 nanometers. The magnetic and electronic ferrites structure was researched with the help of XANES and Mössbauer spe…
Abstract In so gut wie allen Bereichen des täglichen Lebens finden in kleinerem und größerem Umfang ständig Redoxreaktionen statt. Dabei handelt es sich teilweise um scheinbar sehr einfache und uns aus dem Alltag geläufige Reaktionen, wie das Verbrennen einer Kerze, das Verbrennen von Benzin, das Rosten eines Eisengeg…
Carbon (C) fibers with electron emission enhancing cesium iodide (CsI) surface coatings are utilized as field emission cathodes and have been investigated as promising electron sources. Possible applications include not only High Power Microwave (HPM) devices, but also conventional microwave devices, x-ray tubes, and…
The physical sense and the properties of a group screening parameters which are determined in the previous papers (Part 1 and Part 2) for single- and two-component systems is discussed in this paper. On the base of data from the mentioned papers are determined two new characteristic lengths which complete a new hierar…
The paper discusses the features of the structure formation of electrochemical chrome coatings on the introduction into the electrolyte composition of a disperse phase in the form of nanosized carbon additives (ultradispersed diamonds of denotation synthesis and diamond-graphite charge). It is shown that nanosized car…
Abstract Schneller, schärfer, größer – und immer weiter verbreitet – so lässt sich die Erfolgsgeschichte der LC‐Displays beschreiben. Das Geheimnis dahinter: High‐Tech‐Flüssigkristalle mit ganz besonderen Eigenschaften, die die leichten, energiesparenden LCDs erst ermöglichen. Moderne Kommunikation ist durch sie erst…
The reactions of 1,3-alkyl(aryl) derivatives of 5-amino-4-azopyrazoles (HL) with copper(2+) acetate afford metal chelates CuL2. Complexes with the CuN4 chromophore containing a substituted amino group (X = NR) as a donor, like their azomethine analogues, have a pseudotetrahedral structure. Copper chelates with X = NH…
Electron Energy has successfully developed a new grade of zero Reversible Temperture Coeffeicient (RTC) magnets with maximum energy product, (BH)max, of 18.0 MGOe and Hk> 12 kOe. The new grade of zero RTC 18 augments the existing product line and surpasses the prior highest energy zero RTC grade with a (BH)max of 16 M…
The increasing use of heat resistant magnesium alloys for automotive applications is expected to influence the chemical composition of upcoming post consumer scrap. Therefore it would be useful to define alloys that resemble the future composition of the material. For this purpose a matrix of potential recycling syste…
Solubility of the quaternary system RbCl−SmCl 3 −HCl(12.84, 22.66 % by mass)−H 2 O was determined at 298.15 K, and corresponding equilibrium diagrams were constructed. The quaternary system is complicated with three equilibrium solid phases RbCl, RbSmCl 4 ·4H 2 O (1:1 type), and SmCl 3 ·6H 2 O. The solubilities of RbC…
Special features of testing of metal rods by the electromagnetic-acoustic technique were studied using rod waves (Pochhammer wave s 0, torsional wave T 0) and bulk waves (longitudinal l and transverse t waves of radial direction). It was shown that rod waves can detect not only a discontinuity but also a change in the…
Experiments on nanostructure formation on highly oriented pyrolytic graphite (HOPG) surfaces irradiated by slow highly charged Xeq+ (q = 23-29) ions have been carried out at a new experimental terminal for surface physics on the 320 kV ECR platform at the Institute of Modern Physics (IMP). In the tapping mode atomic f…
Polarization of phonons in a magnetic field has been analyzed in terms of the isotropic model. It has been demonstrated that, in the presence of spin-phonon interaction, phonons possess circular polarization, which is responsible for the appearance of the heat flux component perpendicular to the temperature gradient a…
Machinable SiC/graphite composites were fabricated by Plasma Activated Sintering (PAS), which characterized by high heating rate, short time sintering and high efficiency process. The staring powder mixture included SiC, graphite power and a few sintering aids. They were sintered by PAS under 30 MPa Pressure in vacuum…
The thermolysis of fluorozirconates (M 2 ZrF 6 , M 5 Zr 4 F 21 · 3H 2 O, MZrF 5 · H 2 O, Rb 2 Zr 3 OF 12 , and Cs 2 Zr 3 F 14 · 1.5H 2 O) and fluorosulfatozirconates (M 2 ZrF 4 SO 4 , Rb 3 Zr 2 F 9 SO 4 · 2H 2 O, and Cs 8 Zr 4 F 2 (SO 4 ) 11 · 16H 2 O) with M = K, Rb, or Cs in undried air was studied by thermal analys…
Polymer materials are utilized in an increasing number of categories of products, such as components for cars, boats, airplanes, within the electronics industry and other advanced industry as well as in paints and other coatings, for special packaging etc. The uses of polymer materials in new categories of products ar…
The potentials of six approximation functions described in the literature and used to simulate bremsstrahlung X-radiation in electron probe microanalysis are analyzed within a uniform approach. An algorithm based on the use of wave spectra is proposed for determining the parameters of the functions. It is found that t…
With the rising of distributed generation technology, fuel cell, as an important distributed generation source, has become increasingly attractive by virtue of their inherently clean, efficient and quiet service. The dynamic characteristics of distributed generation system lie largely on the property of DG sources in…
In recovery of Cs from nitric acid solutions in the form of phosphomolybdate of variable composition Cs x H3−x PO4·12MoO3·nH2O (x = 3.0−0.8), its content in the solid phase depends on the presence of some other compounds in solution. The impurities can act differently, competing with cesium in precipitate formation, d…