Par Jean-François Stohr、Roger Valle1975-07-01Philosophical magazine
DEFORMATION MODES OF UNIDIRECTIONALLY SOLIDIFIED CARBIDE-REINFORCED COMPOSITES: IN SITU EXPERIMENTS IN THE HVEM RELATED TO MACROSCOPIC BEHAVIOUR In situ investigation of the plastic deformation in tension was performed in the high voltage electron microscope on a unidirectionally solidified metal matrix carbide-reinfo…
Microstructure and mechanical propertiesMicrostructure and Mechanical Properties of SteelsAluminum Alloy Microstructure Properties
Francis K. Fong、H. V. Lauer、Charles R. Chilver 等 4 位作者1975-07-01The Journal of Chemical Physics
In this paper, the phenomenological effects of d→f and f→f processes are examined. The relationship between radiationless multiphonon decay and excitation processes is obtained in terms of the first-order adiabatic relaxation theory. A detailed analysis is given of the experimentally observed temperature dependence of…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsLanthanide and Transition Metal Complexes
J. Frank1975-07-01Journal of Physics E Scientific Instruments
For linear transfer conditions and objects with isotropic statistics, both the sharpness of the point spread function and its departure from rotational symmetry show up in the shape of the autocorrelation peak of the electron micrograph. It is therefore suggested that this function be used for interactive or automatic…
Advanced Electron Microscopy Techniques and ApplicationsElectron and X-Ray Spectroscopy Techniques
C. Benjamin Coffman、D. S. Fanning1975-07-01Soil Science Society of America Journal
Abstract From 60 to 90% of the calcium exchange capacity (pH 7 Ca acetate saturation, Mg acetate replacement) was attributable to > 2µm particles in subsoil horizons of an Ultic Hapludalf developed in residuum from chloritic metabasalt in Maryland's Middletown Valley. Vermiculite was the dominant reactive mineral i…
Soil and Unsaturated FlowClay minerals and soil interactionsMine drainage and remediation techniques
Paolo Orsini、A. Buri、A. Marotta1975-07-01Journal of the American Ceramic Society
The devitrification behavior of specimens with compositions 2CaO · (1‐ x )MgO · x Al 2 O 3 · (2‐ x )SiO 2 , 0≤ x ≤1, was studied. The crystallizing phases were identified by X‐ray diffraction, and the transformation temperatures were determined by differential thermal and/or thermodilatometric analysis. The microhomog…
Material Dynamics and PropertiesGlass properties and applicationsClay minerals and soil interactions
M.O. Lai、D.L. Holt1975-07-01Journal of Applied Polymer Science
Abstract The influence of material flow properties on the variation of wall thickness in a thermoformed part was investigated by measuring the thickness reduction at the pole of free‐formed axisymmetric domes of poly(methyl methacrylate) and high‐impact polystyrene. It was found that at a given pole height, the thickn…
Polymer crystallization and propertiesRheology and Fluid Dynamics StudiesPolymer Foaming and Composites
Norman Hackerman、David Justice、E. McCafferty1975-07-01CORROSION
Corrosion rates of iron in 6N HCl measured by the polarization technique show a sharp decrease at a homopiperazine concentration of 0.016M. Below this concentration, corrosion rates decrease slowly from 2200 μA/cm2 for uninhibited iron to 1400 μA/cm2 at a homopiperazine concentration of 0.016M. At slightly greater inh…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsElectrochemical Analysis and Applications
T. Y. Kometani、W. Wiegmann1975-07-01Journal of Vacuum Science and Technology
The feasibility of using atomic absorption spectrometry (AAS) to monitor aluminum and gallium atoms in a molecular beam of a system designed for growing epitaxial layers of GaAs and AlxGa1−xAs was investigated. Results are reported to demonstrate the effectiveness of the method for monitoring the flux emitted from sou…
X-ray Spectroscopy and Fluorescence AnalysisElectron and X-Ray Spectroscopy TechniquesIon-surface interactions and analysis
Francis J. Kolpak、John Blackwell1975-07-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleThe Structure of Regenerated CelluloseF. J. Kolpak and J. BlackwellCite this: Macromolecules 1975, 8, 4, 563–564Publication Date (Print):July 1, 1975Publication History Published online1 May 2002Published inissue 1 July 1975https://pubs.acs.org/doi/10.1021/ma60046a037https://doi…
Advanced Cellulose Research Studies
Hiroshi Yokoi、Makoto Chikira1975-07-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUnusual magnetic properties of binuclear copper(II) complexes with both hexafluoroacetylacetone and N-substituted salicylaldimine in crystalsHiroshi Yokoi and Makoto ChikiraCite this: J. Am. Chem. Soc. 1975, 97, 14, 3975–3978Publication Date (Print):July 1, 1975Publication H…
Metal complexes synthesis and propertiesMagnetism in coordination complexesLanthanide and Transition Metal Complexes
J. M. Bind、J. V. Biggers1975-07-01Journal of the American Ceramic Society
The densification behavior of pressure sintered cubic silicon carbide containing 1 wt% boron carbide was studied as a function of temperature (1750° to 1950°C). Specimens of theoretical density were obtained at 1950° with a pressure of 3000 psi. Experimental results showed that densification proceeded by a plastic flo…
Advanced ceramic materials synthesisAluminum Alloys Composites PropertiesBoron and Carbon Nanomaterials Research
E. Łunarska、Z. Szklarska‐Śmiałowska、M. Janik‐Czachor1975-07-01CORROSION
Anodic behavior of 18Cr-5Ni steels containing 0.03 to 15% Mn was studied in 0.1N H2SO4 solution with additions of 0.01 to 0.1N NaCl. The presence of 5.7 to 15% Mn in those steels decreases their ability to passivate and their resistance to pitting. The most susceptible locations for pit nucleation are boundaries betwe…
Microstructure and Mechanical Properties of SteelsHydrogen embrittlement and corrosion behaviors in metalsWelding Techniques and Residual Stresses
Syotaro Kageyama、M. Ono、S. Chabata1975-07-01IEEE Transactions on Power Apparatus and Systems
This paper explains the main. cause of the formation of microvoids (1µm-several 10sµm) in the insulation of crosslinked polyethylene, and the effect of those on the electrial characteristics of cable. Crosslinked polyethylene cable is produced through the process of extruding, moulding, heating, crosslinking and cooli…
High voltage insulation and dielectric phenomenaElectrostatic Discharge in ElectronicsElectrical Fault Detection and Protection
Giuseppe Anzuino、A. Pirro、ORIENTA ROSSI 等 4 位作者1975-07-01Journal of Polymer Science Polymer Chemistry Edition
Abstract Because diisocyanates are widely used raw materials in the production of urethane elastomers and foams, it is of particular interest, to know the contribution of secondary reactions to the overall reaction between diisocyanates and polyether glycols, because of the well known influence of crosslinks on the ph…
Polymer composites and self-healing
A. J. McElroy1975-07-01IEEE Transactions on Power Apparatus and Systems
The recent failures of four EHV auto-transformer no load tap changers is interpreted. The failures were a direct and immediate consequence of transmission line faults as far as 340 miles away. The related system transient behavior is analyzed, and the transformer response to these transients is presented on a quantita…
High voltage insulation and dielectric phenomenaLightning and Electromagnetic PhenomenaPower Transformer Diagnostics and Insulation
Yasumiti Matumoto、H. YONEYAMA、Hideo Tamura1975-07-01Chemistry Letters
Abstract The cathodic polarization characteristics of lanthanum nickel oxide, LaNiO3, were investigated in O2-saturated alkaline solutions and it was found that this oxide has a high catalytic activity for oxygen reduction. This paper represents the results in brief.
Catalytic Processes in Materials ScienceAdvancements in Solid Oxide Fuel CellsWater Quality Monitoring and Analysis
Howard Margolis、J. D. M. Phelps、A.A. Carlomagno 等 4 位作者1975-07-01IEEE Transactions on Power Apparatus and Systems
Four failures of large EHV auto-transformers on the AEP system are described. The failures were initiated by flashovers in the no-load tap changer during system faults. Investigations and tests attribute the flashovers to part-winding resonance. Test data is presented for various terminal conditions and wave shapes co…
High voltage insulation and dielectric phenomenaLightning and Electromagnetic PhenomenaPower Transformer Diagnostics and Insulation
Joseph San Filippo、L. E. Zyontz、J.A. Potenza1975-07-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and characterization of some halocopper(I)-alkyl sulfide complexes including the crystal structure of .mu.-(diethyl sulfide)-bis(diethyl sulfide)tetra-.mu.-iodo-tetracopper(I), [(C2H5)2S]3[CuI]4Joseph. San Filippo, Larry E. Zyontz, and Joseph. PotenzaCite this: Ino…
Metal complexes synthesis and propertiesMagnetism in coordination complexesLanthanide and Transition Metal Complexes
K. Hagemark、P. E. Toren1975-07-01Journal of The Electrochemical Society
The excess Zn of Zn‐doped ZnO has been determined using two different methods. An electrochemical method was used as a direct method. Hall effect measurements at 77°‐300°K were used as an indirect method. The agreement between the results from the two methods is good. The Zn ‐ Zn 1 + x O phase boundary is given in the…
ZnO doping and propertiesCharacterization and Applications of Magnetic NanoparticlesSurface and Thin Film Phenomena
J. C. Scott、A. F. Garito、A. J. Heeger 等 5 位作者1975-07-01Physical review. B, Solid state
The magnetic properties of several materials from the class poly(metal phosphinates) have been measured. In particular ESR spectra and the temperature dependence of the static susceptibility of three poly (chromium phosphinates) imply that these polymers comprise a class of one-dimensional antiferromagnetic chains wit…
Theoretical and Computational PhysicsMagnetism in coordination complexesOrganic and Molecular Conductors Research