Materials Literature
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Hyperbolic tilings of type {3,7}, {7,3}, {4,5}, and {5,4} are mapped onto closed 2-manifolds of genus 3 through 7 with as much symmetry as possible. All these maps exhibit local regularity which makes all vertices look equivalent, but most lack some of the global flag-transitive symmetries that are topologically possi…
Cladding materials development is crucial to realize highly efficient and high-burnup operation over 100GWd/t of so called Generation IV nuclear energy systems, such as supercritical-water-cooled reactor (SCWR) and lead-cooled fast reactor (LFR). Oxide dispersion strengthening (ODS) ferritic/martensitic steels, which…
ZnO nanowire thin film was prepared by chemical solution method and a ZnO nanowire-based electroluminescence device has been successfully developed. The device was driven by the alternating current and presented a good RC behavior. Under the action of applied bias, light emission in the ultraviolet region with the wav…
In this paper, we discuss the materials that can now be produced using a novel method for producing large quantities of high-purity metal, metal oxide, and mixed-metal oxide particles. Particles are uniform in size with dimensions that can range from 1 nm to greater than 10μm. Extraordinarily crystalline particles as…
The influence of the form of the Al-containing component, molar ratio of Na2O:Al2O3:SiO2, and the duration of isothermal curing under saturated steam at 180 °C have been examined. The results obtained experimentally show that the form of the Al-containing component (Al(OH)3 or γ-Al2O3) significantly affects the format…
The importance of work function measurement in the field of application has greatly increased. The principle of work function measurement using electron spectroscopic methods such as UPS, XPS and AES is explained. The practical tips for measurements and analysis are advised with reasons.
NacrtakThis paper presents the results of morphological analysis of the Croatian skidder ECOTRAC 120V, as well as the research of its productivity features in timber skidding from hilly terrain after preparatory felling and from mountainous terrain after selective felling.Morphological analysis was used for determinin…
Divalent europium ion doped metal nitride phosphor, of Sr2Si5N8:Eu2+, was synthesized by using Sr carboxylates as a reducing agent and the preparation conditions were optimized. The obtained samples derived from Sr acetate doped with 4 at% Eu2+ to Sr content showed a strong emission at about 630 nm under the excitatio…
It is more precise to characterize the repellency of the fabric by contact angle.The method of measuring the contact angles between a droplet and fabric is one of the most commonly methods,whereas hypsometry and goniometry are most commonly used methods in the measurement of an angle.It is found through actual tests t…
The problem associated with the use of an impedance spectroscopy method for the determination of the state (in the first place, depth of discharge) of primary power sources in the system thionyl chloride-lithium is considered. The conclusion is made on the basis of an analysis of literature data concerning the problem…
κ-(BEDT-TTF) 4 Hg 2.89 Br 8 is an ambient-pressure superconductor with a transition temperature ( T c ) value of 4.3 K. This salt can be considered as an electron system that is naturally carrier doped into a Mott insulator by a slight excalation of the Hg ions. In order to obtain information about the nature of the m…
Growth, shape and texturing dynamics of single 2D spherulites areanalyzed using the Landau-de Gennes (LdG) liquid crystal model ofisotropic-nematic phase ordering. Direct numerical simulation showsthat non-circular nucleation due to anisotropy in the interfacialtension results in non-circular shapes in the early stage…
Molecular dynamics simulations are performed to study the growth of diamond-like carbon (DLC) films on the atomic scale. The behaviors of incident atoms on the surface are classified into four categories: surface freezing, migration, implantation and rebounding, according to the atomic movement. The behaviors of incid…
Zirconia fine particles were synthesized by thermal and hydrothermal decomposition of zirconium tetra-tert-butoxide in an externally heated tube flow reactor with two inlet section arrangements - long or short inlet nozzle. Particle production and characteristics were studied in dependence on reactor temperature, prec…
In recent years there has been a considerable interest in developing new types of low molecular mass organogelators because of their potential technological applications. Several classes of low molecular weight compounds form stable and efficient gels with various organic solvents at low concentrations. One-component…
The optical properties of chalcogenide thin films from the pseudo-binary (As 2 Se3) 1-x (Agl) x system, where x=5, 10, 15, 20, 25, 30 and 35 mol.% were studied with respect to the influence of Agl incorporation. Two techniques - vacuum thermal evaporation (VTE) and pulsed laser deposition (PLD) were applied to prepare…
The hydrophobicity recovery characteristics of HTV silicone rubber (SIR) at different corona deterioration stage have been investigated with static contact angle method. The surface microstructure variation with the corona deterioration processing, along with the chemical composition change at the end of corona discha…
A copper hillock induced interconnect failure mechanism is presented. The copper hillock is frequently generated during a copper dual damascene process and hillock formation is found to degrade the interconnect integrity by affecting the following process steps. The copper hillock appears to damage the SiN capping lay…
A mechanistic study was performed to investigate plasma damage and CFL, recovery of porous carbon-doped oxide (CDO) low k surfaces. First the nature of damage was examined for different plasma treatments in a standard RIE chamber then followed by a study using a downstream hybrid plasma source with separate ions and a…
Mg/Pd laminate composites (Mg/Pd = 6) prepared by a repetitive-rolling method can reversibly absorb and desorb a large amount of hydrogen, up to 1.47 H/M (4 mass%) at 573 K. Pressure-composition isotherms of the Mg/Pd laminate composites show two plateaux, PL=0.2 MPa and PH=2 MPa, during hydrogen absorption and desorp…