Materials Literature
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Ag 1 − x [ ( Y 2 O 3 ) 0.1 ( ZrO 2 ) 0.9 ] x (YSZ) cermet thin films have been deposited by reactive magnetron cosputtering from Ag and Zr/Y targets in Ar ‐ O 2 mixtures. The deposition conditions were such that the YSZ component in the films was fully oxidized. The film densities varied from ≈75% to >85% as the total…
Experimental evidence is provided to show that irreversible aging which leads to electrical treeing in polymeric insulation such as low-density and crosslinked polyethylene used in HV transmission cables, does not start at local fields between 5 and 20 kV/mm. It is shown that a much higher stress is required for elect…
Abstract The title compound (DPP) is a new red pigment based on the diketopyrrolopyrrole chromophore. The evaporated film of DPP has a vivid red whose absorption spectrum is very similar to the molecular spectrum in solution. When exposed to acetone vapor, the film turns orange, and changes in photoelectrical properti…
A polycrystalline-silicon surface with hemispherical grains (HSG) is deposited by low-pressure chemical vapor deposition at 590 °C. At the temperature, 590 °C, the structure of the Si film just after deposition is amorphous, but crystallization of the amorphous Si occurs to produce HSG-Si during annealing after deposi…
We have investigated the molecular beam homoepitaxial and heteroepitaxial growth of InSe and GaSe III–VI compounds semiconductors. In situ reflection high-electron energy diffraction measurements reveal that two-dimensional epitaxial growth occurs on (00.1) oriented substrates, at substrate temperatures ranging from 3…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemical modification of halogenated polystyrene resins utilizing highly reactive calcium and the formation of calcium cuprate reagents in the preparation of functionalized polymersRichard A. O'Brien, Tianan Chen, and Reuben D. RiekeCite this: J. Org. Chem. 1992, 57, 9, 2667…
Magnetoelectric effect in magnetic insulators is reviewed. Alter an intuitive explanation of the effect in antiferromagnetic Cr 2 O3, the following topics are discussed on the experiments. Measurement and controlling of antiferromagnetic domains as well as antiferromagnetic domain wall motion. Expansion of the free en…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotoracemization of optically active 1,1'-binaphthyl derivatives: light-initiated conversion of cholesteric to compensated nematic liquid crystalsMingbao Zhang and Gary B. SchusterCite this: J. Phys. Chem. 1992, 96, 7, 3063–3067Publication Date (Print):April 1, 1992Publicat…
Because of considerable interest at US EPA for the collection of polar organic compounds in stainless steel canisters, particularly for the Toxic Air Monitoring Site (TAMS) study, the stability of 10 selected polar organics in canisters was investigated and the results are described in this paper. The polar organic co…
The creation of nonthrombogenic synthetic surfaces is a major challenge in biomedical research. The feature that clearly distinguishes natural blood vessels from their artificial counterparts is the presence of endothelial cell lining that besides being nonthrombogenic is capable of repair and renewal. This study desc…
Abstract Stereoregular polyamides containing two chiral backbone carbons in the repeating unit were prepared by polycondensation of bis(pentachlorophenyl) 2,3‐O‐methylene‐ L ‐tartrate with 1,9 and 1,12‐alcanediamines activated as N,N′ ‐bis(trimethylsilyl) derivatives. The polymers were characterized by elemental analy…
EntF is the enzyme responsible for serine activation during the biosynthesis of enterobactin (a cyclic trimer of N-dihydroxybenzoyl serine) in Escherichia coli. EntF has been overexpressed and purified to > 90% homogeneity. The enzyme has been shown to complement the entF- MK1 strain in the synthesis of 2,3-dihydroxyb…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChains of centered metal clusters with a novel range of distortions: praseodymium ruthenium iodide (Pr3I3Ru), ruthenium yttrium iodide (Y3I3Ru), and iridium yttrium iodide (Y3I3Ir)Martin W. Payne, Peter K. Dorhout, Sung Jin Kim, Timothy R. Hughbanks, and John D. CorbettCite…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEquilibrium constants and predictions of miscibility windows and maps for polymer blends involving p-(hexafluoro-2-hydroxy-2-propyl)styrene with methacrylate and acetoxy groupsXiaoming Yang, Paul C. Painter, Michael M. Coleman, Eli M. Pearce, and T. K. KweiCite this: Macromo…
The photoirradiation effect on photoluminescence (PL) from anodized porous silicons was studied. Although PL from Si anodized in artificial light decreased with photoirradiation, PL from Si anodized in the dark was found to increase with photoirradiation in air. The main factor for the photoirradiation effect was attr…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and x-ray crystal structure of potassium tetrakis(2,6-diisopropoxyphenolato)neodymate(1-): a one-dimensional chain of lanthanide aryloxide anions joined by bis(.eta.6-arene)-potassium interactionsDavid L. Clark, John G. Watkin, and John C. HuffmanCite this: Inorg…
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRecombination luminescence quenching of nonstoichiometric cadmium sulfide clusters by ZnTPPJ. ChrysochoosCite this: J. Phys. Chem. 1992, 96, 7, 2868–2873Publication Date (Print):April 1, 1992Publication History Published online1 May 2002Published inissue 1 April 1992https://…
The amino acid sequence of the iron-sulfur-flavoprotein, trimethylamine dehydrogenase, isolated from the bacterium W3A1 has been deduced from the x-ray diffraction pattern obtained at 2.4-A resolution. This sequence has been compared to portions of the primary sequence derived by gas-phase sequencing of isolated pepti…
With a 90° twist between the two halves, dication 12+ is the first ethylene dication with the maximum distortion possible. The stabilization of the positive charge is achieved in the separate halves of the dication by delocalization over polymethine units. 12+, whose ClO salt melts at about 170°C with decomposition, i…