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。
The reaction of benzene with oxygen atoms produced by mercury photosensitized decomposition of nitrous oxide has been studied in a circulating system at room temperature. The main reaction product is a non-volatile material probably largely aldehydic in character. This is tentatively assumed to result from the rearran…
The dielectric behavior of KNO 3 crystal was investigated. Mainly in its ferroelectric phase III, which appears in the temperature range of about 125∼115°C on cooling, the D - E hysteresis loop along the c axis was observed by the usual Sawyer-Tower method using the 50 c/s a c electric field, the pyroelectric current…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHE BISULFATE ACID CONSTANT FROM 25 TO 225° AS COMPUTED FROM SOLUBILITY DATA1M. H. Lietzke, R. W. Stoughton, and T. F. YoungCite this: J. Phys. Chem. 1961, 65, 12, 2247–2249Publication Date (Print):December 1, 1961Publication History Published online1 May 2002Published iniss…
Abstract The crystal structure of polyketone (1:1 ethylene/carbon monoxide copolymer) obtained by γ‐irradiation copolymerization of ethylene and carbon monoxide was determined by x‐ray diffraction. An orthorhombic unit cell was found, having space group D (Pnam) of dimensions a = 7.97, b = 4.76, c (fiber axis) = 7.57…
The original theory of thermally stimulated emission is extended to include the effect of a temperature dependent trapping cross section. A method is proposed whereby the ionization energy and temperature dependent capture cross section of a set of identical trapping states may be determined from the half-width and sh…
Measurements have been made of the electrical resistivity and the Hall constant of the carbides of the fourth and fifth group transition metals at room temperature in order to clarify the electronic structure of these compounds. The Hall coefficients are of the order of -10 -3 coul -1 cm 3 for the fourth group carbide…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA new plotting of the BET methodTominaga. Keii, Tokuji. Takagi, and Setsuko. KanetakaCite this: Anal. Chem. 1961, 33, 13, 1965Publication Date (Print):December 1, 1961Publication History Published online1 May 2002Published inissue 1 December 1961https://pubs.acs.org/doi/10.1…
Existing calculations of the total absorption coefficient are generally based on the assumption that all the primary radiation energy which is converted into Comptonscattered radiation escapes from the material without significant absorption. This paper extends this basic assumption to include fluorescent and annihila…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Ultraviolet Irradiation of Model Compounds Related to Cellulose1ANDREW BEÉLIK and J. KELVIN HAMILTONCite this: J. Org. Chem. 1961, 26, 12, 5074–5080Publication Date (Print):December 1, 1961Publication History Published online1 May 2002Published inissue 1 December 1961htt…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMECHANISM OF THE PHOTO-INITIATED POLYMERIZATION OF METHYL METHACRYLATE AT ZINC OXIDE SURFACES1Joseph C. Kuriacose and M. Clare MarkhamCite this: J. Phys. Chem. 1961, 65, 12, 2232–2236Publication Date (Print):December 1, 1961Publication History Published online1 May 2002Publi…
Measurements on single-crystal silicon show that the thermal conductivity varies nearly as ${T}^{\ensuremath{-}1}$, from 1.25\ifmmode\pm\else\textpm\fi{}0.19 w/cm C\ifmmode^\circ\else\textdegree\fi{} at 30\ifmmode^\circ\else\textdegree\fi{}C, to 0.46\ifmmode\pm\else\textpm\fi{}0.07 w/cm C\ifmmode^\circ\else\textdegree…
Eigenschaften und Beziehungen von Symmetriegruppen werden benutzt, um die Struktur der Mikrowellenspektren von Molekülen mit zwei gleichen oder verschiedenen behindert drehbaren dreizählig-symmetrischen Molekülgruppen zu klären. Es ergeben sich für eine Reihe verwandter Molekültypen Entartungsgrade der Eigenwerte, Aus…
The conversion of boehmite to transition aluminas and to alpha (corundum) was studied with ( a ) fibrillar colloidal boehmite, about 50 a.u. in diameter, ( b ) finely divided boehmite in the form of thin elongated platelets, and ( c ) macroscopic boehmite crystals. In the range 500 o to 700 o C., ( a ) was converted t…
Specimens of biotite, muscovite, artificial fluorophlogopite, and muscovite annealed at 900°C were examined using an electron microscope after having been covered with a uranium layer and irradiated in a reactor. Tracks due to fission products appeared on every specimen except biotite, and the respective diameters wer…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHE PREPARATION OF trans 1,4-POLYBUTADIENE BY RHODIUM SALTS IN SOLUTIONRobert E. Rinehart, Homer P. Smith, Harry S. Witt, and Hendrik Romeyn Jr.Cite this: J. Am. Chem. Soc. 1961, 83, 23, 4864–4865Publication Date (Print):December 1, 1961Publication History Published online1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHE KINETICS OF SINTERING OF PLATINUM SUPPORTED ON ALUMINAR. A. Herrmann, S. F. Adler, M. S. Goldstein, and R. M. DeBaunCite this: J. Phys. Chem. 1961, 65, 12, 2189–2194Publication Date (Print):December 1, 1961Publication History Published online1 May 2002Published inissue 1…
The crystal structure of tetragonal tellurium dioxide was studied using neutron diffraction. The space group is either P 4 1 2 1 2 or P 4 3 2 1 2. The lattice constants are: a = 4.796 Å, c = 7.626 Å, c / a = 1.59. New oxygen-atom parameters were determined. The coordination polyhedron of the tellurium atom is a distor…
The relations between the structure, crystal chemistry, chemical bonds involved, and the infrared spectra of layer‐structure silicates established on the basis of recent experiments are discussed and summarized.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Calculation of Electrochemical Kinetic Parameters from Polarographic Current-Potential CurvesLouis Meites and Yecheskel IsraelCite this: J. Am. Chem. Soc. 1961, 83, 24, 4903–4906Publication Date (Print):December 1, 1961Publication History Published online1 May 2002Publis…
A mathematical treatment of steady-state dendritic growth from pure and alloy liquids has been developed for isothermal and nonisothermal dendrites. The velocity of dendritic growth, dendrite size, dendrite direction, and the alloy content of the dendrite have been calculated as a function of the bath supercooling, th…