Materials Literature
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Beryllium has attracted a great attention as multiplier in fusion reactors and moderator and reflector in fission reactors. The use of plasma-sintering method has been suggested as a way to fabricate beryllium specimens which have similar properties with those produced by conventional methods (e.g., hot pressing and h…
The effective Debye temperature () of the surface of a single crystal of U0.71Th0.79O2 alloy prepared by hydrothermal synthesis is obtained from temperature‐dependent X‐ray photoemission in the temperature range of 300–623 K. The effective average Debye temperature is determined to be 217 ± 24 K. X‐ray fluorescence (X…
Nuclear waste management facilities at Chalk River Laboratories (CRL) use below-ground “tile-holes” to store solid waste from various activities such as medical isotope production. After long periods of isotopic decay, some of the waste has decayed down to low activities and can be transferred to low-level waste stora…
A method of estimation of the ionisation cluster-size distribution for single primary particle from experimental data obtained in setup without primary particle detector is presented. The Jet Counter nanodosemeter was used in two kinds of experiments with alpha particles to validate the method. Possible application of…
This paper provides a systematic study of fundamental combinatorial properties of one-dimensional, two-sided infinite simple Toeplitz subshifts. Explicit formulas for the complexity function, the palindrome complexity function and the repetitivity function are proved. Moreover, a complete description of the de Bruijn…
Background: Plastic materials intended for contact with food sometimes exhibit unfavorable organoleptic properties which is related to the presence of volatile organic compounds. These substances not only worsen organoleptic properties, but can be very harmful to humans health. For the sake of consumer safety, it is n…
Abstract The effects of halogen element X (X = Br, I) doping on the geometrical structures and electronic properties of neutral aluminium clusters are systematically studied by utilising the density functional theory calculations. The structures of X-doped clusters show the three-dimensional forms with increasing atom…
The 1,4-polyketone derived from 1-hexene and carbon monoxide, poly(1-hexene- alt -CO) ( 1 ), can undergo Paal–Knorr cyclization with substituted anilines to yield N -pyrrole-functionalized polyketones. A variety of pendant functionalities are introduced to 1, including azobenzene ( 6 ) and triarylamines ( 5a – e ). Th…
A p-type transparent conducting material was developed to be used as transparent back-contact for the next generation of Cu(In,Ga)Se 2 (CIGS) based solar cells. Cu–S:Al–S thin films were synthesized by atomic layer deposition at temperature T dep = 150 °C, by combining Cu x S and Al 2 S 3 cycles obtained from copper a…
Blue phase liquid crystal films are quite useful in reflective displays, flexible photonic devices, and optical sensors. However, the effects of refractive index properties of refilled liquid crystals and environment temperature on reflection properties of blue phase liquid crystal films are far from fully exploration…
The magnetic and magnetotransport properties of Ni80Fe20/La0.7Sr0.3MnO3 (NiFe/LSMO) bilayers were investigated after bombarding the LSMO surface with low-energy Ar+ or O2+/Ar+ ion beams before the growth of the top NiFe layer. A variety of magnetic properties are revealed, including an asymmetric two-stepped hysteresi…
Large strain rolling (LSR) has been conducted on the Mg-2Zn-0.4Y alloy. After the 1st rolling process at 250, 300, 350, and 400 °C, the alloy demonstrates a fully recrystallized microstructure. The grain size increases from 6, 8, 12, to 17 μm with an increasing rolling temperature. After the 2nd rolling process at 300…
Abstract Hereby, a facile one step synthesis of polyoxazoline coated Superparamagnetic Iron Oxide Nanoparticles is reported. The functionalization efficiency is demonstrated using several complementary techniques including direct High Resolution‐Transmission Electron Microscopy observations of the polyoxazoline layer.…
and with potential in detection of molecules by fluorescent absorption.
A low-temperature strategy has been applied to synthesize a host of rare earth fluorides including NaLnF 4 and LnF 3 (Ln = rare earth) with NaF and rare earth nitrates as initial raw materials in NH 4 NO 3 flux.
Abstract Trivalent europium (Eu3+) and terbium (Tb3+) ions are important activator centers used in different host lattices to produce red and green emitting materials. The current work shows the design of new clay minerals to act as host lattices for rare earth (RE) ions. Based on the hectorite structure, nano‐chloroh…
We investigated the Phase Change Memory (PCM) capabilities of In-doped Sb nanowires (NWs) with diameters of (20-40) nm, which were self-assembled by Metalorganic Chemical Vapor Deposition (MOCVD) via the vapor-liquid-solid (VLS) mechanism. The PCM behavior of the NWs was proved, and it was shown to have relatively low…
Abstract Wir beschreiben im Detail die Erfahrungen, Herausforderungen, Erfolge und Perspektiven beim Aufbau eines Chemieforschungszentrums in Vietnam. Durch die Prinzipien der “globalen Wissenschaft” geben wir spezifische Einblicke in den Prozess der Errichtung eines international wettbewerbsfähigen Forschungsprogramm…
Interfacial reactions and underlying atomic mechanisms between Ta contacts (space group Im3¯m) and thermoelectric Bi2Te3 (space group R3¯m) are studied experimentally and theoretically. A Ta/Bi2Te3 mixture is found to be inert up to the melting point of Bi2Te3 (∼589 °C) based on calorimetry and interfacial composition…
Abstract Natural orthorhombic sulfur ( α -S 8 ), grown on galena crystals from Cap Garonne, Mine du Pradet, France, were studied by single crystal X-ray diffraction at 150 K: Fddd , a =1036.75(5), b =1273.54(7), c =2437.85(13) pm, wR =0.0380, 1433 F 2 values (all data) and 37 variables. Refinements of the occupancy pa…