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。
Abstract The dielectric behavior of different polar high polymers at ultra‐high frequencies has been investigated by means of a dielectrometer, suitably modified to permit measurements at different temperatures. Experimental measurements were made at about 9 × 10 9 cps over the temperature range of −150 to 200°C. for…
Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text R. C. Vehse, E. T. Arakawa, and J. L. Stanford, "Normal-Incidence Reflectance of Aluminum Films in the Wavelength Region 800–2000 Å*," J. Opt. Soc. Am.…
Abstract The γ‐ray‐initiated polymerization of dimethyl itaconate was studied. Dimethyl itaconate was polymerized by γ‐irradiation at temperatures where the monomer does not polymerize thermally; so long as the monomer is kept in a liquid state, even at temperatures below the melting point, the polymerization takes pl…
The electrical conduction transients of CeO2 and ca-doped CeO2 were investigated by employing a constant-current dc power source and a six-probe high-resistance input-isolated recording system. In contrast to the observations made by Kevane et al. neither voltage-time transients nor non-Ohmic behavior were observed wh…
Abstract The presence of a higher-order phase transition at around 60–70°C in phenanthrene crystal, previously suggested by the anomalies in electrical conductivity and in thermal expansion, and by the endothermic phenomenon, has been confirmed through an X-ray powder diffraction study. The results disclose the follow…
The diffusion of several solutes in liquid silver and tin is discussed in terms of the fluctuation model, the modified critical fluctuation theory and the ‘hole’ theory of liquid diffusion, assuming the solute as a point charge equal to the difference in the charge of the solute and solvent atoms. The additional coulo…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanical Foam BreakingMorris Goldberg and Eliezer RubinCite this: Ind. Eng. Chem. Process Des. Dev. 1967, 6, 2, 195–200Publication Date (Print):April 1, 1967Publication History Published online1 May 2002Published inissue 1 April 1967https://pubs.acs.org/doi/10.1021/i260022…
Abstract A series of polyaryloxysilanes was prepared from aromatic diols and dianilino‐ and diphenoxysilanes. High molecular weight polymers were obtained at temperatures of 200°C. or higher by using melt‐polymerization procedures. The polymers, which combine the structures of silicones and polyaromatics, possessed hi…
Investigations in oxide system based on tellurium oxide resulted in preparation of new compounds of the type B 3 TeO 6 (B 2+ = Mg,Mn,Ni,Cu). Mg 3 TeO 6 and Mn 3 TeO 6 are isostructural, rhombohedral, pseudo-cubic. Ni 3 TeO 6 crystallizes with the ilmenite structure, whereas Cu 3 TeO 6 obviously belongs to the D 3 5 -s…
Temperature dependence of the dielectric constant and the d.c. electrical resistivity of single crystals of NaNO 2 were measured in the vicinity of the ferroelectric Curie point under precise control of temperature. Anomalies in the dielectric constant ε 22 and the resistivity ρ 22 are seen at 163.8°C (the Curie point…
The characteristics of light emission from hydrodynamic cavitation are given. Changes were examined for small variations in water temperature, pressure, and gas content. Using oxygen, nitrogen, and xenon dissolved in water, the shapes, intensities, and pulse height spectra for individual light pulses were determined.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and structure of (CH3)4Sn3Fe4(CO)16Robert M. Sweet, Charles J. Fritchie Jr., and Robert A. SchunnCite this: Inorg. Chem. 1967, 6, 4, 749–754Publication Date (Print):April 1, 1967Publication History Published online1 May 2002Published inissue 1 April 1967https://doi…
The magnetic susceptibilities of the compounds [bipy-H2][MnCl5], [phen- H2]-[MnCl5], [MnCl3(H2O)bipy], [MnCl3(H2O)phen], [MnF3(H2O)phen], [MnCl3 trpy], [MnCl4 bipy], [MnCl3 bipy], [MnCl3 phen], and [MnO phen2](ClO4)2,0.5H2O have been determined over the temperature range c. 100-300°K. All compounds appeared to follow…
Magnetic and optical data on single-crystal RbNiF3 are presented. We conclude that this material is ferrimagnetic, rather than antiferromagnetic as previously reported, with a transition temperature of 139°K and a saturation moment of 21 emu/g at 4.2°K. The basal plane is the preferred plane and the out-of-plane aniso…
Impact shear tests of the Kolsky thin-wafer type were used to determine the effects of temperature and strain rate on the critical resolved shear stress for basal slip in zinc single crystals. At high strain rates the flow stress was found to increase linearly with the plastic strain rate and was independent of temper…
The propagation, of a plane electromagnetic wave in a magnetoelectric crystal is described by an eigenvalue equation in which the eigenvalue is the phase velocity of the wave and the eigenvector is the electric-field. The equation is first solved for the special case in which the dielectric tensor is real and diagonal…
The resistance quenched into pure aluminium wires has been measured as a function of quench temperature for four quench speeds, varying by a factor of 200. The resulting data are consistent with the theory of Flynn et al. (1965), which assumes that the vacancy loss during a quench occurs by migration of single vacanci…
The influence of work-function reduction and variation of the incident-beam angle on the secondary-electron yield and secondary-electron energy distribution from the (111) face of Ge have been studied. Reduction of the work function from 4.79 to 2.3 eV by deposition of Na increased the maximum yield from 1.2 to a valu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Radiation Chemistry of Polyethylene. IX. Temperature Coefficient of Cross-Linking and Other EffectsH. Y. Kang, O. Saito, and M. DoleCite this: J. Am. Chem. Soc. 1967, 89, 9, 1980–1986Publication Date (Print):April 1, 1967Publication History Published online1 May 2002Publ…
A general theory of electron diffraction by crystals is developed. The crystals are assumed to be infinitely extended in two dimensions and finite in the third dimension. For the scattering problem by this structure two-dimensionally expanded forms of GREEN’S function and integral equation are at first derived, and co…