Dino Pisaniello、P.J. Nichols、Yves Ducommun 等 4 位作者1982-05-05Helvetica Chimica Acta
Abstract The temperature‐ and pressure‐dependent equilibria for the addition of an extra N , N ‐dimethylforrnamide (DMF) or trimethylphosphate (TMP) ligand onto [Nd (DMF) 8 ] 3+ ‐ and [Nd(TMP) 6 ] 3+ ‐species respectively have been measured by visible spectrophotometry. Complementary NMR. studies on other lanthanide i…
Radioactive element chemistry and processingLanthanide and Transition Metal ComplexesElectrochemical Analysis and Applications
I. A. Ammar、S. Darwish、Munawar Khalil1982-05-01Materialwissenschaft und Werkstofftechnik
Abstract The mechanism of anodic dissolution and hence of corrosion of W in alkaline solutions (NaOH, Na 3 PO 4 ) has been investigated by measuring anodic Tafel lines by the galvanostatic technique, and calculating both the Tafel slope b and the effect of pH on anode potential as diagnostic criteria for the mechanism…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsConcrete Corrosion and Durability
Shigeru Shigetomi、Tetsuo Ikari、Yutaka Koga 等 4 位作者1982-05-01Japanese Journal of Applied Physics
Photoluminescence measurements were carried out to study the annealing effect of Zn-doped p-type InSe. The diffusion constant of Zn atom along the c -axis in InSe was estimated to be D =2.7×10 7 exp (-2.5 eV/ k T )cm 2 s -1 from the depth profiles of the 1.17 eV emission peak intensity. The isochronal annealing behavi…
Chalcogenide Semiconductor Thin FilmsAdvanced Semiconductor Detectors and MaterialsSolid-state spectroscopy and crystallography
Philipp Gütlich、B. LEHNIS、Joachim Strähle1982-05-01Zeitschrift für Naturforschung B
New nonstoichiometric cesium bromo aurates(I,III) Cs 1+x (AuBr 4 )(AuBr 2 , Br 3 ,Br) x have been synthesized, in which the almost equally shaped anions AuBr 3 - and Br 3 - can interchange themselves. The compounds crystallize in a disordered cubic perovskite structure with a = 547.5 pm or in a tetragonal superstructu…
Crystal Structures and PropertiesPolyoxometalates: Synthesis and ApplicationsInorganic Chemistry and Materials
L. Gerward1982-05-01Zeitschrift für Naturforschung A
X-ray mass attenuation coefficients for polycrystalline samples of copper have been measured with a high-precision energy-dispersive method. Estimates of the scattering contributions to the attenuation coefficients are made. The photoelectric coefficients deduced from the experimental results are compared with theoret…
X-ray Spectroscopy and Fluorescence AnalysisRadiation Shielding Materials AnalysisX-ray Diffraction in Crystallography
Shusaku SHIOZAWA、Shinzo SAITO、Satoshi Yanagihara1982-05-01Journal of Nuclear Science and Technology
Zircaloy cladding chemical reactions with coolant water and UO2 fuel at elevated temperatures under a reactivity initiated accident (RIA) condition were studied from a metallurgical point of view on the basis of the nuclear safety research reactor (NSRR) experiments. The cladding-fuel chemical reaction was extensively…
Nuclear reactor physics and engineeringNuclear Materials and PropertiesNuclear Engineering Thermal-Hydraulics
Fredric J. Vinick、S. JUNG1982-05-01The Journal of Organic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConcerning the preparation of optically pure N-(thiocarboxy)-L-aspartic anhydrideFredric J. Vinick and Stanley JungCite this: J. Org. Chem. 1982, 47, 11, 2199–2201Publication Date (Print):May 1, 1982Publication History Published online1 May 2002Published inissue 1 May 1982ht…
Analytical Chemistry and ChromatographyPolymer Synthesis and Characterization
N. D. Ghatge、R. A. N. Murthy1982-05-01Journal of Applied Polymer Science
Polythiourethane polymers were synthesized from a few glycol polythioglycolates and TDI or MDL Castor oil tristhioglycolate, a new trithiol, was tried as a crosslinking agent. Mechanical and solvent resistance properties of the cured products are reported.
Polymer composites and self-healingSynthesis and properties of polymersSilicone and Siloxane Chemistry
Haruo Tomari、Keiko Fujiwara、Kazutoshi Shimogori 等 5 位作者1982-05-01CORROSION
IGSCC of 13%Cr and 18%Cr Ferritic stainless steels with various carbon, nitrogen, and titanium contents, has been studied in high temperature aqueous environments. Conventional ferritic stainless steels became susceptible to IGSCC in high temperature water irrespective of the existence of chloride ions, when they were…
Hydrogen embrittlement and corrosion behaviors in metalsHigh Temperature Alloys and CreepNuclear Materials and Properties
D. Weinraub、P. Peretz、M. Faraggi1982-05-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemical properties of water-soluble porphyrins. 1. Equilibriums between some ligands and iron(III) tetrakis(4-N-methylpyridyl)porphyrinD. Weinraub, P. Peretz, and M. FaraggiCite this: J. Phys. Chem. 1982, 86, 10, 1839–1842Publication Date (Print):May 1, 1982Publication Hist…
Metal complexes synthesis and propertiesPorphyrin and Phthalocyanine ChemistryPhotochemistry and Electron Transfer Studies
Lloyd B. Thomas、Sudarshan K. Loyalka1982-05-01Nuclear Technology
Estimation of gap conductance in nuclear reactor fuel rods requires values for thermal accommodation coefficients of several gases on Zircaloy, uranium-dioxide, stainless steel, and other surfaces. These values for Zircaloy-2 have now been obtained by observing cooling rates of a Zircaloy sphere suspended in the sever…
Nuclear reactor physics and engineeringNuclear Materials and PropertiesNuclear Engineering Thermal-Hydraulics
Alan L. Dragoo、L.P. Domingues1982-05-01Journal of the American Ceramic Society
Fine Ce‐Y oxide powders were prepared by coprecipitation of the carbonate, followed by calcination at 620°C. Hydrolysis of trichloroacetic acid was used to precipitate most of the material from a homogeneous solution; addition of ammonium bicarbonate and ripening of the precipitate were used to increase the yield to 6…
Catalytic Processes in Materials ScienceCopper-based nanomaterials and applicationsnanoparticles nucleation surface interactions
M. Cavallini、F. Felli、R. Fratesi 等 4 位作者1982-05-01Materials and Corrosion
Abstract The corrosion behaviour of high manganese (19.8 – 32.5%)aluminum (7.1 – 10.2%) austenitic steels in different aqueous solutions has been examined. Potentiodynamic tests in 1 N sulphuric acid solution show high current densities either in the active or in the passive region and the formation of a thick film wh…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsConcrete Corrosion and Durability
S. R. Herd、K. Y. Ahn、R. J. von Gutfeld 等 4 位作者1982-05-01Journal of Applied Physics
Transmission electron microscopy is used to characterize the hole-formation process due to laser writing in evaporated and sputtered Te thin films and in a Se-Te bilayer. Bilayers, with Se as the top layer, combine the effect of an antireflective coating with protection against oxidation and provide the advantage of a…
Laser Material Processing TechniquesPhase-change materials and chalcogenidesAdvanced Semiconductor Detectors and Materials
F. Paulekat、Hubert Gräfen、D. Kuron1982-05-01Materials and Corrosion
Abstract Anodic protection makes it possible to keep materials which can be passivated in a “passive” state or to bring them into this state, even in unfavourable conditions. With sulphuric acid concentrations of 93–99% this method permits the use of inexpensive, stainless austenitic steels, e.g. 1.4541 and 1.4591, at…
Hydrogen embrittlement and corrosion behaviors in metalsConcrete Corrosion and DurabilityEngineering Diagnostics and Reliability
D. B. Poker、J.M. Williams1982-05-01Applied Physics Letters
This letter presents data on the release of He from Ni at temperatures between 18 and 300 K after ion implantation of He at 18 K. The release occurred in two stages, a sharply peaked release near 50 K and a broad release that extended from 80 to 300 K. For He doses in the range of 5×1014–1.4×1016 cm−2 and shallow impl…
Metal and Thin Film MechanicsFusion materials and technologiesNuclear Materials and Properties
E. Strick、Francesco Mainardi1982-05-01Geophysical Journal International
The so called ‘constant-Q’ models of Becker and Lomnitz are shown to be two special cases of a ‘constant-Q’ hypergeometric model. The Becker and Lomnitz cases appear to be the extreme cases of our more general model, and these special cases yield essentially the same mechanical behaviour over all frequencies. However,…
Geotechnical Engineering and Soil MechanicsMaterial Properties and Failure Mechanisms
Melody Starr Kasprzak、G. E. Leroi、S. R. Crouch1982-05-01Applied Spectroscopy
Raman spectroscopy has been used to distinguish structural differences between α-12-heteropoly anions and β-12-heteropoly anions in solution. The results are consistent with the Keggin structure for the α-isomers and a modified Keggin structure for the β-isomers. Reduced 12-molybdophosphates and molybdovanadophosphate…
biodegradable polymer synthesis and propertiesMesoporous Materials and CatalysisPolyoxometalates: Synthesis and Applications
Shigenobu Hayashi、Kikuko Hayamizu、Osamu Yamamoto1982-05-01The Journal of Chemical Physics
The behaviors of hydrogen in β-vanadium hydride VH0.59 were studied by the 1H NMR spectroscopy. Fourier-transformed spectra, spin-spin relaxation times, and spin-lattice relaxation times were measured in the temperature range between 77 and 420 K, and it was found that there are two kinds of hydrogen which occupy diff…
Hydrogen Storage and MaterialsQuantum, superfluid, helium dynamicsNMR spectroscopy and applications
Manuel B. Carvalho、Larry F. Wieserman、David M. Hercules1982-05-01Applied Spectroscopy
Wilkinson's catalyst, RhCl(PPh 3 ) 3 is a well known and widely used homogeneous hydrogenation catalyst. This catalyst was analyzed by ESCA which revealed that two rhodium species [Rh(I) and Rh(III)] were present, both for commercial preparations and for catalysts prepared in this laboratory. The ratio of Rh(I) to Rh(…
X-ray Spectroscopy and Fluorescence AnalysisIron oxide chemistry and applicationsElectron and X-Ray Spectroscopy Techniques