Materials Literature
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We introduce electrochromic coatings for use on "smart windows" with dynamic control of radiant energy. Applications, operating principles, materials options, and device configuration are briefly reviewed. We then focus on electrochromic WO3 and investigate crystalline films by computations aimed at assessin…
Article Structural and antiferroelectric phase transitions in betaine phosphate, (CH3)3NCH2COO · H3P04 was published on November 1, 1984 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 168, issue 1-4).
Domain modifications due to compressive stress applied perpendicular to the rolling direction (RD) of coated HI-B sheets are discussed. Both single and stacked sheets were investigated. Compressive stress normal to the sheet surface, as well as compressive stress within the sheet plane, was found to cause refinement o…
Article Crystal structure, polarity and morphology of 4-0-β-D-galactopyranosyl-ɑ-D-glucopyranose monohydrate (ɑ-lactose monohydrate): a redetermination was published on November 1, 1984 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 168, issue 1-4).
Abstract not Available.
Neutron activation technique was used to measure the amounts of I, Ag and Na elements in zeolite samples. The samples were nonradioactive before the activation analysis; this facilitated various operations to investigate the chemical form of the sorbed iodine. It was found that the Ag+ ions positioned in three types o…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA novel organic photochromicS. D. Cox, C. W. Dirk, F. Moraes, D. E. Wellman, Fred Wudl, M. Soltis, and C. StrouseCite this: J. Am. Chem. Soc. 1984, 106, 23, 7131–7133Publication Date (Print):November 1, 1984Publication History Published online1 May 2002Published inissue 1 No…
Abstract A comparative study of the cure behavior of thiocarbamyl sulfenamides both in the presence of MBTS and thiazole sulfenamides has been made at 140 and 170°C. It is observed that most of the NR vulcanizates obtained at 170°C are capable of retaining a considerable portion of torque, modulus, and tensile values…
Abstract Complexes of urea with polyethers, \documentclass{article}\pagestyle{empty}\begin{document}$\rlap{‐‐} [\left( {{\rm CH}_2 } \right)_m {\rm O\rlap{‐‐} ]}_n$\end{document} ( m = 2–4, 6, 8–10), were prepared, and their crystal structures and decomposition temperatu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemical alloying, a novel method for the preparation of homogeneous selenium-tellurium (SexTe1-x) alloysThomas W. Smith, Steven D. Smith, and Santokh S. BadeshaCite this: J. Am. Chem. Soc. 1984, 106, 23, 7247–7248Publication Date (Print):November 1, 1984Publication History…
The common corona charger consisting of wire or needle, gnrd, and one side metalized sample has been modified to obtain a more uniform surface potential over the area of interest. The better uniformity is obtained by adding an aperture between grid and sample close to the surface to be charged. This aperture is connec…
The dielectric constant ε′(ω) and the a.c. conductivity σ(ω) of undoped and lightly doped (0·5% Al, 0·8% Ti, 0·5% W) crystals of vanadium dioxide (VO2) are reported for the temperature range 4·2–77 K and the frequency range 0·1–100 kHz. The 0·5% W-doped sample shows a strong dispersion in ε′(ω) and a frequency-indepen…
Magnetometer surveys above gas pipelines have shown stress-induced magnetic anomalies at pipe bends. This suggests a technique for noninvasive monitoring of stress in pipelines and other ferromagnetic structures. Previous laboratory measurements of the external magnetic field changes due to single bending and internal…
Abstract Nous décrivons la synthèse de bis (alkyl‐4 phényl) et bis (alkoxy‐4 phényl) tétrathiafulvalènes originaux. Certains d'entre eux présentent un polymorphisme dont on a précisé les températures de transition.
Pitting resistance was evaluated in autogenous GTA welds of approximately 30 commercial and laboratory heats of AISI 316 steel sheets by the standard ferric chloride immersion test and the potentiodynamic anodic polarization test in acid chloride solution. The results indicate that the solidification mode, although it…
The oxidation of iron was investigated by Rutherford backscattering spectroscopy at 573 K under the oxygen partial pressure from 10−1 to 105 Pa for 3~24 h. In the first stage of oxidation, thickness of the oxide film reached the maximum around 1 Pa. In the second stage the oxidation obeyed the parabolic rate law. From…
Abstract Crystal absorption spectra of the two modifications of the perylene-TCNQ (7,7,8,8-tetracyanoquinodimethan) complex were derived from reflection spectra by the Kramers-Kronig transformation and are discussed in relation to the differences in the crystal structures. The spectral response of photoconduction does…
Abstract The optical absorption and emission spectra of Tb 3+ in TbPO 4 in its tetragonal structure above 2.3 K are studied to obtain the energies, symmetry types, and wave functions of mainly the lowest crystal field components of the ground term 7 F 6 . Crystal field parameters are evaluated and used to calculate th…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolyurethane interpenetrating polymer networks (IPN's) synthesized under high pressure. 3. Morphology and Tg behavior of polyurethane-polystyrene semi-IPN's and linear blendsDoo Sung Lee and Sung Chul KimCite this: Macromolecules 1984, 17, 11, 2222–2227Publication Date (Prin…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanism of electrochemical reduction of the (5,10,15,20-tetraphenylporphinato)dihydroxophosphorus(V)cationCarl A. Marrese and Carl J. CarranoCite this: Inorg. Chem. 1984, 23, 24, 3961–3968Publication Date (Print):November 1, 1984Publication History Published online1 May 20…