Materials Literature
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An equation for the half width of an adiabatic shear band formed under combined stresses is derived. The importance of strain rate, stress, temperature rise, and thermal conductivity is described. Confirmation is found for the proposition that shear band width is independent of stress state and this is confirmed by co…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDynamic quenching of the metal-to-ligand charge-transfer excited state of Cu4I4(pyridine)4. Exciplex formation and self-quenchingKevin R. Kyle and Peter C. FordCite this: J. Am. Chem. Soc. 1989, 111, 13, 5005–5006Publication Date (Print):June 1, 1989Publication History Publi…
Optical and electro-optic properties of two highly conjugated diphenyldiacetylenic liquid crystals (LCs) [1.4-bis-(4-propylphenyl)-butadiyne, abbreviated as PTTP-mm] and their eutectic mixture were characterized in the nematic range. These LCs are found to exhibit extraordinarily high birefringence and very low viscoe…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTX-ray diffraction study of calcium(II) chloride hydrate melts: CaCl2.cntdot.RH2O (R = 4.0, 5.6, 6.0, and 8.6)Toshio Yamaguchi, Shunichi Hayashi, and Hitoshi OhtakiCite this: Inorg. Chem. 1989, 28, 12, 2434–2439Publication Date (Print):June 1, 1989Publication History Publishe…
Submicrometer SiO 2 ‐Al 2 O 3 powders with compositions of 46.5 to 76.6 wt% Al 2 O 3 were prepared by hydrolysis of mixed alkoxides. Phase change, mullite composition, and particle size of powders with heating were analyzed by DTA, XRD, IR, BET, and TEM. As‐produced amorphous powders partially transformed to mullite a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of pressure on the solubilities of benzene and alkylbenzenes in waterSeiji Sawamura, Kiyoshi Kitamura, and Yoshihiro TaniguchiCite this: J. Phys. Chem. 1989, 93, 12, 4931–4935Publication Date (Print):June 1, 1989Publication History Published online1 May 2002Published…
Daniels and Skyrme (1985) derived the joint distribution of the maximum, and the time at which it is attained, of a Brownian path superimposed on a parabolic curve near its maximum. In the present paper the results are extended to include Gaussian processes which behave locally like Brownian motion, or a process trans…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics and mechanism of the iron(III)-catalyzed autoxidation of sulfur(IV) oxides in aqueous solution. 1. Formation of transient iron(III)-sulfur(IV) complexesJochen Kraft and Rudi Van EldikCite this: Inorg. Chem. 1989, 28, 12, 2297–2305Publication Date (Print):June 1, 198…
Compositions within the lead zirconate-titanate (PZT) solid solution system have been extensively used in polycrystalline ceramic form in a wide range of piezoelectric transducer application. However, the growth of good quality PZT single crystals for compositions across the entire phase diagram has not been accomplis…
Abstract One of the biggest problems in quantitative surface analysis with x‐ray photoelectron spectroscopy (XPS) or Auger electron spectroscopy (AES) is in obtaining an accurate measure for the number of photoelectrons or Auger electrons contributing to peaks in spectra. The approach taken for quantitative analysis o…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotooxidation of poly(vinyl chloride). 1. A reexamination of the mechanismJean Luc Gardette, Serge Gaumet, and Jacques LemaireCite this: Macromolecules 1989, 22, 6, 2576–2581Publication Date (Print):June 1, 1989Publication History Published online1 May 2002Published inissue…
The zero-temperature energies and equilibrium volume expansions of point-defect-free grain boundaries (GBs) on the two densest planes of b.c.c. metals have been determined using a Finnis—Sinclair potential for Mo and Johnson's potential for α-Fe. The energies and volume expansions of the (100) boundaries are found to…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTShape-selective targeting of DNA by phenanthrenequinone diiminerhodium(III) photocleaving agentsAnna Marie Pyle, Eric C. Long, and Jacqueline K. BartonCite this: J. Am. Chem. Soc. 1989, 111, 12, 4520–4522Publication Date (Print):June 1, 1989Publication History Published onli…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA new structure type in polyoxoanion chemistry: synthesis and structure of the V5O143- anionV. W. Day, Walter G. Klemperer, and O. M. YaghiCite this: J. Am. Chem. Soc. 1989, 111, 12, 4518–4519Publication Date (Print):June 1, 1989Publication History Published online1 May 2002…
Information on material properties is essential to engineering design. The breadth and precision of the data that the designer requires depend on the stage the design has reached: at the start (the ‘conceptual’ stage), low level data for all materials; at the finish (the ‘detailed design’ stage), data at a high level…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLigand-centered redox processes for manganese, iron and cobalt, MnL3, FeL3, and CoL3, complexes (L = acetylacetonate, 8-quinolinate, picolinate, 2,2'-bipyridyl, 1,10-phenanthroline) and for their tetrakis(2,6-dichlorophenyl)porphinato complexes[M(Por)]Silvia A. Richert, Paul…
Selective, non-catalytic techniques for removing nitric oxide (NO) from the exhaust gases of combustion processes include the addition of cyanuric acid, ammonia, or urea to the hot exhaust. This paper compares the effects of temperature and exhaust gas composition on the cyanuric acid (CA) and the ammonia (NH3) nitric…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUV resonance Raman studies of peptide conformation in poly(L-lysine), poly(L-glutamic acid), and model complexes: the basis for protein secondary structure determinationsSunho Song and Sanford A. AsherCite this: J. Am. Chem. Soc. 1989, 111, 12, 4295–4305Publication Date (Pri…
Semiconductor crystals possessing inversion symmetry (Si, Ge) are known to have a rather weak second-order nonlinearity of the quadrupole type [ Phys. Rev. Lett.51, 1983 ( 1983)], since the electric-dipole contribution is forbidden by symmetry. We report the experimental observation of anomalously highly efficient sec…
For a number of different structures and states of B3, B2N, BN2, and N3, optimum geometries and harmonic spectra were obtained at the HF/6-31G* level. The relative stability of the isomers was determined using full fourth-order Mo/ller–Plesset theory, both with and without spin projection, as well as coupled cluster m…