Materials Literature
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Abstract NiTiCr is used in medicine for retriever devices, dental‐ and guide wires [1–3]. Very little has been published in literature about this ternary NiTi‐alloy. In the present work, the mechanical properties of NiTiCr shape memory alloy (SMA) wires (0.25 wt.% Cr) in the as‐received condition and after a number of…
Silver-coated polyamide filaments were used as substrates for the electrodeposition of ZnO/eosinY hybrid thin films from aqueous mixed solutions containing Zn(NO(3))(2) and eosinY. Electrodeposition under pulsed potentiostatic control turned out advantageous to control the conditions of mass flow and to suppress paras…
A new type of optical storage device is described employing a material consisting of a host nematic liquid crystal, a photoisomerisable azobenzene component and a photopolymerizable monomer. The principle of image storing involves selectively controlling the birefringence of the medium immediately prior to photopolyme…
The use of alpha-benzoin oxime in Ni(II) chemistry leads to the formation of a family of unusual molecular and supramolecular wheels.
Mesoporous carbon/silica nanocomposites and derivative hierarchically mesoporous carbon have been prepared using 1,4-bis(triethoxysilyl)benzene (BTEB) as a precursor for a carbon/silica network and Pluronic P123 (HO(CH(2)CH(2)O)(20)(CH(2)CH(CH(3))O)(70)(CH(2)CH(2)O)(20)H) as a template for highly-ordered hexagonal por…
Matrix isolation infrared spectra and quantum chemical calculations of the copper dioxygen/ozonide complexes, CuO(5), CuO(4) and CuO(4)(-) are reported. These oxygen-rich species were prepared by reactions of laser-evaporated copper atoms with dioxygen or ozone in solid argon. The CuO(5) complex was determined to be a…
The use of chromic materials for responsive surface-enhanced resonance Raman scattering (SERRS) based nanosensors is reported. The potential of nano-chromic SERRS is demonstrated with the use of the halochrome methyl yellow to fabricate an ultrasensitive pH optical sensor. Some of the challenges of the incorporation o…
Sodium aluminophosphosilicate gels and glasses along the composition line (Na2O)x–[(AlPO4)0.5(SiO2)0.5]1−x were synthesized via the sol-gel process using sodium acetate, aluminium lactate, phosphoric acid and tetraethyl orthosilicate (TEOS) as precursors. The structural evolution from solution to gel and to the final…
An array of TCNQ (TCNQ = 7,7,8,8-tetracyano-p-quinodimethane) lanthanide complexes, namely, [Ln2(TCNQ)4(H2O)10(EtOH)2][2TCNQ] x xH2O [Ln = La (1, x = 5), Pr (2, x = 3)], [Ln2(TCNQ)4(H2O)10][2TCNQ] x yH2O [Ln = Gd (3, y = 6), Dy (4, y = 5)] and [Ln(TCNQ)2(H2O)6][TCNQ] x H2O x MeOH [Ln = Er (5), Lu (6)], have been synth…
High surface area ZnO-carbon composite tubular arrays on a ceramic substrate were successfully synthesized by a hydrothermal process and a subsequent nanoscale diffusion-related reaction within the carbonaceous species-coated ZnO rod arrays during 900 degrees C annealing.
The as-cast matrix microstructure in 19 mass%Cr-2.8 mass%C white cast iron with up to 4.7 mass% V additions has been studied. Type and degree of the austenite transformation in the course of cooling after solidification in Fe-Cr-C-V alloys appeared to be dependent on the content of carbon and other alloying elements.…
Carbon nanotubes (CNTs) were produced from plant materials using a cyclic oxidation process after the raw materials were pretreated by oxidative carbonization in air at about 240°C. The cyclic oxidation process was found to be more effective than a continuous heating process in ablating the residual carbon from cellul…
Electromigration data and a theoretical model have shown that Cu lifetime in on‐chip Damascene interconnect structures has dropped for every new interconnect generation, even when tested at the same current density. In addition, a mixture of bamboo and polycrystalline grain structures instead of a bamboo‐like structur…
作为最轻的结构的金属， Mg 和基于 Mg 的合金在太空有大潜在的应用，汽车、原子的工业。然而，如此的应用被低韧性和力量限制了。理论上，小谷物同时地缩放结构罐头改进它的韧性和力量。然而，为镁合金的普遍可靠的谷物精炼技术仍然在调查下面，一些在强壮的辩论。这篇论文为镁合金论述谷物精炼方法的开发的简短评论，它将贡献控制谷物精炼的因素的更好的理解并且在这个领域里提供未来研究的眼界。
This paper is dealing with the corrosion and growth behavior of M5® and recrystallized low tin Zircaloy-4 irradiated as stress-free tubes in conditions representative of grids and guide-tubes of PWR fuel assemblies. The low-tin Zircaloy-4 tubes have reached equivalent burn-ups up to 93 GWd/tU (corresponding to a fluen…
Recently, remarkable progress has been made in particulate matter (PM) removal using plasma discharge. This review will first introduce PM characteristics and oxidation mechanism of PM in plasma discharge, then summarize the history of PM removal using plasma discharge, finally discuss some typical patents on plasma r…
Concrete materials in nuclear facilities may become contaminated or activated by various radionuclides through different mechanism. Decommissioning and dismantling of these facilities produce considerable quantities such as concrete structure, rubble. In this paper, the characteristics distribution of the radionuclide…
The rare earth rich compounds R 23 Ni 7 Mg 4 (R = Ce, Pr) and R 4 NiMg (R = La, Tb, Dy, Ho, Er) were synthesized by slow thermal treatment in a resistance furnace, starting from element pieces enclosed in sealed Ta crucibles. SEM-EDXS analyses were performed for monitoring the phase composition. The crystal structures…
The physical properties of two kinds of polyolefin/bamboo charcoal composites, based upon polypropylene (PP) and low density polyethylene (LDPE), were studied for varying levels of charcoal inclusion between 0 and 20 phr. A Brabender mixer and two-roll mill were used for the mixing process of both polyolefin and bambo…
The ZnS semiconducting nano particles were synthesized by solid state reaction method using Zinc acetate dehydrate and sodium sulfide as precursors at room temperature. The as-prepared ZnS nanoparticles have average particle size of 11 nm. Strain and the dislocation density were estimated by Stokes-Wilson formula. The…