Materials Literature
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An underground system of tanks was installed to delay the discharge of 131I waste from the thyroid therapy unit to the on-site sewage treatment plant. As a consequence, the level of radioactivity discharged to sewage has fallen by a factor of 530, reducing the radiation dose to hospital and auxiliary service staff. Ca…
The crystal structure and morphology of the commercial ethylene−propylene−ketone terpolymer has been investigated by X-ray diffraction, DSC, and transmission electron microscopy. Crystallization from both the bulk and from dilute solution was considered. In both cases crystallinities were found to be <50%. Two crystal…
Electrical Conductivity of Gd y Ce 1−y O 2-y/2-x (y=0.1, 0.2), as a function of temperature and oxygen partial pressure, was measured with a complex impedance method. It is shown that the increase of electrical conductivity with reducing oxygen partial pressure can be described well by a model that assumes constant mo…
A new brucite-like Mg/In layered double hydroxide of composition [Mg 0.725 In 0.275 (OH) 2 ][CO 3 ] 0.137 ·0.70H 2 O has been studied.
Metal injection molding (MIM) is a recognized processing route for net- and near-net-shape complex parts for use in medical, automotive, industrial, and consumer industries. The MIM process holds great potential for cost reduction of orthopaedic implant devices for applications such as femoral components, tibial bases…
Abstract The reaction of methanetricarboxylates 1a,b with 2‐aminopyridine, 2‐aminopyrimidine, 2‐aminothiazole as well as 2‐aminobenzothiazole yields corresponding heteroarylcarboxylic acid esters 2a,b , 5 , 8 , 11a,b . These heterocyclic esters were used as a starting material by the reaction with primary amines to ob…
Platelike BaMnAl11O19-α particles were grown in a Ce-TZP matrix by the solid-state reaction of Ce-TZP, BaCO3, MnCO3 and α-Al2O3 powders. The addition of Mn was found to be effective in lowering the formation temperature of single-phase barium hexaaluminate (BaMnAl11O19-α) by 400°C. The Ce-TZP/20 mass% BaMnAl11O19-α co…
Due to the heavy current passing through the steel cover plates of power transformers. some areas are subject to serious local overheating. It affects the safety and reliability of the expensive equipment and power delivery.
The mechanical properties of SCS‐6 SiC fibers were measured as a function of fiber radius using nanoindentation techniques. Hardness and Young's modulus were characterized for the material in all of the major regions of these fibers: the carbon core, the graphitic core coating, the inner SiC sheath, and the outer SiC…
Small diatoms belonging to the genus Fallacia often constitute a diverse component of the benthic protist communities of brackish and marine sandy sediments worldwide. However, the systematics of these organisms, and especially the epipsammic representatives, is incompletely known, and this seriously hampers the inter…
First principles quantum chemical calculations at the HF, MP2 and B3LYP levels of theory, using the LANL2DZ basis set, were used to explore the potential energy hypersurfaces (PESs) of ionic titanium(IV) oxide clusters of molecular dimensions, formulated as TiO32-, Ti2O32+, Ti2O52- and Ti2O64-. The neutral protonated…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Hasan Padamsee, Jens Knobloch; The nature of field emission from microparticles and the ensuing v…
The l-step and multiple-step KC1 extraction technique was used to evaluate quantitatively the distribution of adsorbed NH,+ in the 0-5 cm strata of 2 intertidal muddy structures from Marennes-Oleron Bay. France. KC1 extraction efficiency was highel-in the reconstituted sediment slurries and decreased significantly in…
The Martin–Siggia–Rose functional integral technique is applied to the dynamics of a D-dimensional manifold in a melt of similar manifolds. The integration over the collective variables of the melt can be simply implemented in the framework of the dynamical random phase approximation. The resulting effective action fu…
The deposition of thin metallic films on substrates is a common procedure, with a great number of different techniques, for a variety of practical and scientific applications. One of the most important properties to adjust is the thickness of the film. In special applications like MBE, this is made up in situ and duri…
TiNi SHAPE MEMORY alloy preparation for the multiaxial tests was explained. Stable response of the alloy was realized, not by training but by an effective combination of the alloying technique and the heat treatment: Ti-51.0at%Ni polycrystalline shape memory alloy heat-treated by annealing at 673 K for 3.6 ks followed…
The Department of Energy (DOE) must treat and safely dispose of its radioactive tank contents, which can be separated into high-level waste (HLW) and low-level waste (LLW) fractions. Since the unit costs of treatment and disposal are much higher for HLW than for LLW, technologies to reduce the amount of HLW are being…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation P. M. Nikolić, Z. Djinović, D. M. Todorović, V. Jović, Z. Djurić, A. I. Bojičić, D. Urošević, V.…
The structural change of the (100-x) (0.6Li2S⋅0.4SiS2)⋅xLi3PO4 oxysulfide glasses during crystallization was analyzed by means of solid-state nuclear magnetic resonance (NMR) and X-ray photoelectron spectroscopy (XPS). The unique tetrahedral units of SiOnS4-n (n=1, 2, 3) and POnS4-n (n=1, 2, 3) present in the glass sa…
The intercalation complex of kaolinite and potassium acetate (KAc) was studied by HTXRD, IR spectroscopy and DTA-TG. The HTXRD patterns indicate that the 14.06 Aa basal spacing of the complex contracts to 11.77 Aa and 9.35 Aafter heating at 60 degrees C. The DTA-TG data indicate that water is present in these new comp…