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。
In electric-field-induced Raman-scattering experiments on the cubic perovskite SrTi${\mathrm{O}}_{3}$, a striking electric field shift and splitting of the "soft" optical phonon mode is observed. Experiments were done at temperatures ranging from 8 to 250\ifmmode^\circ\else\textdegree\fi{}K and for electric fields bet…
The Fano factor in germanium at liquid-nitrogen temperature has been found to be $F=0.129\ifmmode\pm\else\textpm\fi{}0.003$ using $\ensuremath{\gamma}$ rays at energies from 0.122 to 4.8 MeV. $F$ appears to be independent of the primary energy in the investigated energy range. Care has been exercised to eliminate the…
The infrared luminescence spectra of four different crystals of cubic ${\mathrm{Zn}}_{1\ensuremath{-}x}{\mathrm{Fe}}_{x}\mathrm{S}$ with ${10}^{\ensuremath{-}4}\ensuremath{\le}X\ensuremath{\le}{10}^{\ensuremath{-}2}$ have been measured at 5 and 77\ifmmode^\circ\else\textdegree\fi{}K. There is no appreciable luminescen…
It is found that five distinct distant-neighbor interactions must be considered in order to characterize adequately the Heisenberg energy in normal cubic spinels having diamagnetic $A$-site ions. The classical theory of the ground spin state is presented in terms of these interactions, which span a five-dimensional pa…
Measurements of the electrical conductivity, the Seebeck effect, and the Hall effect were performed on hot-pressed Cd${\mathrm{Cr}}_{2}$${\mathrm{Se}}_{4}$ between 77 and 300\ifmmode^\circ\else\textdegree\fi{}K. The conductivity of $n$-type Cd${\mathrm{Cr}}_{2}$${\mathrm{Se}}_{4}$ (In-doped) shows a sharp minimum at 1…
The nonrelativistic limit of the Born cross section for electron-electron bremsstrahlung is integrated over a Maxwell-Boltzmann electron distribution. Results for the spectrum are compared with the electron-ion ($Z=1$) bremsstrahlung spectrum found in the literature. The long-wavelength limit is obtained and compared…
Article Neutronenbeugungsuntersuchung der Strukturen von MgAl2O4- und ZnAl2O4-Spinellen, in Abhängigkeit von der Vorgeschichte was published on November 1, 1967 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 124, issue 1-6).
Article Härtetiefenmessung an Stahlwalzen mit Ultraschall / Ultrasonic measurement of hardening depth on steel rolls / Mesure de la profondeur de trempe en cylindres d’acier par ultrasons was published on November 1, 1967 in the journal Materials Testing (volume 9, issue 11).
Article Verfeinerung der Kristallstruktur von Tellurit, dem rhombischen TeO2 was published on November 1, 1967 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 124, issue 1-6).
Abstract The effect of thermal history on the melting behavior of several linear polymer and copolymers of ethylene has been studied by using a Perkin‐Elmer DSC‐1 differential scanning calorimeter. Samples of film were heated above their melting point and then cooled at various rates in order to establish a known ther…
A method is described for measuring the optical absorption spectra of the crystalline and liquid phases of a transition-metal salt close to the melting point. Supercooling the liquid permits measuring both phases at the same temperature. This technique was applied to Cs3NiCl5 (mp 547°C) and CsNiCl3 (mp 758°C). It was…
Abstract We measured the rate of thermal decomposition of azobisisobutyronitrile (AIBN) from the rate of loss of 2,2‐diphenylpicrylhydrazyl (DPPH) on reaction of the free radicals formed by thermal decomposition of azobisisobutyronitrile (AIBN) in organic solvents with DPPH. There has been some doubt about the quantit…
The leachability of ion‐exchanged alkali alumino‐silicate glasses in water and in acid was shown to be a function of the stress at the surface. Alkali aluminosilicate glasses formed by ion exchange under conditions resulting in surface compression were more durable than similar unstressed alkali aluminosilicate glasse…
Abstract A general treatment is given of the methods to be used in other parts of this series for calculating the degree of chemical crosslinking in natural rubber vulcanizates from stress–strain measurements in extension and from equilibrium volume swelling measurements. Corrections are required for the presence in t…
The particle size distribution of CoFe2O4 formed by the coprecipitation method was investigated by x-ray diffraction and electron microscopy. In the x-ray diffraction method, 〈110〉 column length distributions were calculated by Warren's procedure. A particle size distribution was obtained from the 〈110〉 column length…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGaseous hydroxides of cobalt and nickelGeoffrey R. Belton and Andrew S. JordanCite this: J. Phys. Chem. 1967, 71, 12, 4114–4120Publication Date (Print):November 1, 1967Publication History Published online1 May 2002Published inissue 1 November 1967https://pubs.acs.org/doi/10.…
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 Melvin H. Horman, "Efficiences of Zone Plates and Phase Zone Plates," Appl. Opt. 6, 2011-2013 (1967) Export Citation BibTex Endnote (RIS) HTML Plain Te…
This paper reports the results of measurements of electrical conductivity and tracer (90Sr and 36Cl) diffusion in single crystals of SrCl2, both nominally pure and doped with the aliovalent ions Y3+ and Na+, in the temperature region 20° < T < 780°C. The conductivities for nominally pure crystals agree w…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNonmetal oxy- and thiofluoride saltsMax Lustig and John K. RuffCite this: Inorg. Chem. 1967, 6, 11, 2115–2117Publication Date (Print):November 1, 1967Publication History Published online1 May 2002Published inissue 1 November 1967https://doi.org/10.1021/ic50057a044Request reu…
The effect of micromechanical stress concentrations around elastic discontinuities in a glass was investigated. Specimens of glass containing porosity of controlled size and volume fraction were fabricated by vacuum hot‐pressing and strength was tested under uniaxial and biaxial stress conditions. Results were interpr…