Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetooptical Spectroscopy of Zinc Octaethylporphyrin in an Argon MatrixZbigniew Gasyna, David H. Metcalf, Paul N. Schatz, Cara L. McConnell, and Bryce E. WilliamsonCite this: J. Phys. Chem. 1995, 99, 16, 5865–5872Publication Date (Print):April 1, 1995Publication History Pu…
We report here original results characterizing in situ the interactions between a smectic liquid crystal phase and a polymer network dispersed in it. These results have been obtained by neutron scattering on smectic liquid crystal (8CB) samples containing a physical network of 1.5wt% polymer. The samples were polymeri…
Abstract Estimations of the external specific surface areas (S.S.A.) by the N 2 -BET method of clay separates that were further fractionated by the high gradient magnetic separation technique revealed that the magnetic fractions had consistently lower S.S.A. compared to non-magnetic fractions. This phenomenon has been…
The Oak Ridge National Laboratory (ORNL) is participating in a program to apply a molten salt oxidation (MSO) process to treatment of mixed (radioactive and RCRA) wastes. The salt residues from the MSO treatment will require further separations or other processing to prepare them for final disposal. A bench-scale MSO…
Abstract Polymerization of methacrylic esters such as benzyl methacrylate using as initiator an‐equimolar mixture of methylaluminium 5,10,15,20‐tetraphenylporphine [(TPP)AlMe] and 2,7,12,17‐tetramethyl‐3,8,13,18‐tetramethylporphine [(EtioP)AlMe] proceeded from both initiators, affording a unimodal polymer of narrow mo…
Two compounds of the 1-(4'-alkoxyphenylamino-3-[5''-(2''-menthylpirydil)]-propen-1-one-3 (PIRn) series that exhibit the hexatic-B (Hex-B) to smectic-A (Sm-A) and the crystal-B (Cry-B) to Hex-B phase transitions were studied by high resolution ac calorimetry. The Hex-B--Sm-A phase transition was found to be of first or…
The polarized absorption spectra of eight dichroic dyes, alkyl derivatives of 4-amino-(N-ethylnaphthalimide) dissolved in the nematic liquid crystals 5CB and 6CHBT have been measured as a function of temperature. On the basis of these spectra, the guest order parameter has been evaluated. The influence of the alkyl ch…
The evaluation of eddy currents in cylindrical geometries is examined analytically by using a method, which utilises the second order magnetic vector potential. As an example the three‐dimensional problem of the calculation of eddy currents inside a long conducting cylinder excited by a saddle shaped coil is studied.
In the original paper (see ibid., vol. 1, no. 1, p. 153-9, 1994), the authors show that the two-parameter Weibull distribution is satisfactory to represent the results on samples of HV thermally aged EPR cables. This does not exclude, as well as they indicate it, that the three-parameter Weibull distribution is someti…
The influence of small ruthenium additions on the corrosion behavior of high-chromium duplex stainless steels (DSS) was studied. Ruthenium additions (≤ 0.28%) increased the corrosion resistance of the base alloy by simultaneously improving hydrogen evolution efficiency and inhibiting anodic dissolution. The corrosion…
Other| April 01, 1995 The crystal structure of gillulyite, Tl2(As,Sb)8S13, from the Mercur gold deposit, Tooele County, Utah, U.S.A. Franklin F. Foit; Franklin F. Foit Washington State University, Department of Geology, Pullman, WA, United States Search for other works by this author on: GSW Google Scholar Paul D. Rob…
The concentration dependence of the orientational order parameter of acetic acid dissolved in nematic solvents has been generated by computer simulation on the basis of an equilibrium model for liquid crystalline solutions containing non-mesogenic solutes. Comparison of this predicted dependence with experiment allows…
Abstract Thermogravimetric analysis (TGA) at constant temperature was used to measure weight loss of plasticized nitrocellulose (NC) propellants due to vaporization of plasticizer. Plasticizers consisted of three 2‐nitroxyethylnitramine (NENA) compounds, diethylene glycol dinitrate (DEGDN), and nitroglycerin (NG). Ini…
The thermoelastic martensitic transformation and the stress-strain behaviour associated with the transformation in manganese-rich Mn-Cu alloys have been examined by tensile testing using single crystals grown by the Bridgman method. In the case of the deformation below the martensitic transformation temperature, twinn…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal Decomposition of NF3 by Ti, Si, and Sn PowdersElizabeth Vileno, Michael K. LeClair, Steven L. Suib, Michael B. Cutlip, Francis S. Galasso, and Steven J. HardwickCite this: Chem. Mater. 1995, 7, 4, 683–687Publication Date (Print):April 1, 1995Publication History Publi…
Other| April 01, 1995 Palladium oxide equilibration and the thermodynamic properties of MgAl2O4 spinel Laurinda Chamberlin; Laurinda Chamberlin California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States Search for other works by this author on: GSW Google Scholar Joh…
Abstract For a triplet competitive‐consecutive halogenation sequence forming mono‐, di‐ and trihalogenated products of the form, A + B → R + B → S + B → T, under semibatch operation adding B to A, if perfect mixing could be assumed at all scales, the product distribution would be unchanged on scaling up. However, if t…
Abstract The influence of the crown ether concentration on the reaction rate constants and the equilibrium constant in anionic (butoxymethyl)oxirane polymerization was studied. Polymerizations of (phenoxymethyl)oxirane and (2‐(9‐carbazoyl)ethoxymethyl)oxirane were carried out for the sake of comparison. The observed c…
For several reasons, biodegradable polymers have recently attracted much public and industrial interest. This contribution focuses on microbial aspects of the biodegradability of polymeric materials in the environment. It provides an overview on biodegradability and the mechanisms of degradation of relevant natural an…
Abstract Different grades of impact‐modified polystyrene were studied by viscometry, tensile impact test and colour change upon exposure to polychromatic irradiation at 55°C in air. The samples underwent extensive reduction in intrinsic viscosity [η] and tensile impact strength, and yellowed upon polychromatic irradia…