New Preisach-type models of hysteresis and their experimental testing
New Preisach-type models of scalar hysteresis are discussed and the results concerning experimental testing of these models are given.
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Photon‐stimulated desorption yields from stainless steel and copper‐plated beam tubes with various pretreatments
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation C. L. Foerster, H. Halama, C. Lanni; Photon‐stimulated desorption yields from stainless steel and…
Insertion of a copper nitrene into a carbon-hydrogen bond to form bis(2-(phenylamino)-1,10-phenanthrolinato)dicopper(I): a short copper-copper distance with no bond?
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInsertion of a copper nitrene into a carbon-hydrogen bond to form bis(2-(phenylamino)-1,10-phenanthrolinato)dicopper(I): a short copper-copper distance with no bond?Soon W. Lee and William C. TroglerCite this: Inorg. Chem. 1990, 29, 9, 1659–1662Publication Date (Print):May 1…
Localised corrosion behaviour of 17–4 PH stainless steel
The localised corrosion behaviour of 17–4 PH (precipitation hardenable) stainless steel, in the solution annealed, aged, and overaged conditions, was studied in acidic chloride and sulphuric acid media using the potentiodynamic anodic polarisation method. Electrochemical potentiokinetic reactivation (EPR) studies and…
An empirical electron spectrometer transmission function for applications in quantitative XPS
Abstract The use of XPS data for accurate elemental quantitation requires that the transmission function of the electron spectrometer be known. Often, the dependence on electron kinetic energy ( E k ) and spectrometer pass energy ( E a ) are treated as separable functions. This is inadequate for the comparison of data…
Catalytic Epoxidation of Cyclooctene with Oxygen Using Electrochemically Reduced Metalloporphyrins
Abstract Epoxidation of cyclooctene with molecular oxygen was achieved using electrochemically reduced metalloporphyrins in N,N-dimethylformamide (DMF) containing acetic anhydride as an electrophile. Turnover numbers 5–7 based on moles of cyclooctene oxide produced per moles of porphyrin were obtained by the use of [5…
Thermal Behavior of Aluminum Rolling
Proper roll cooling has been identified as a critical factor in the problems of excessive roll spalling and poor thermal crowning in modern, high-speed rolling mills. In this paper, an analytical model has been developed to determine the temperature profiles of the roll and the strip. This model uses basic heat transf…
Catalytic behavior and structure of active species on Cu-Y zeolite in oxidation of carbon monoxide
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCatalytic behavior and structure of active species on Cu-Y zeolite in oxidation of carbon monoxideHiroshige. Matsumoto and Shuji. TanabeCite this: J. Phys. Chem. 1990, 94, 10, 4207–4212Publication Date (Print):May 1, 1990Publication History Published online1 May 2002Publishe…
The Universal' dielectric response. II
For pt.I see ibid., vol.6, no.2, p.16-22 (1990). In the first part it was shown that the virtually universally observed relaxation behavior of solid dielectrics is radically incompatible with the classical Debye behavior. It was also pointed out that the widely accepted interpretation in terms of distributions of rela…
Neutron-diffraction study of YTiCo11 and YTi(Co0.5Fe0.5)11
The compounds YTi(Fe1−xCox)11 form complete solid solutions (0≤X≤1) all of which crystallize in the ThMn12-type tetragonal structure. The substitution effects of Fe with Co on saturation magnetization and Curie temperature have been investigated. A neutron-diffraction study has been carried out on YTiCo11 and YTi(Co0.…
Microstructure‐Mechanical Property Relationships in Hot Isostatically Pressed Alumina and Zirconia‐Toughened Alumina
The rates of densification and the mechanical properties of pure Al 2 O 3 and ZrO 2 ‐toughened Al 2 O 3 (ZTA) have been investigated as a function of the temperatures and time schedules used for hot isostatic pressing (HIP) as a postsintering heat treatment for samples which had already been pressureless sintered in a…
Subdomain zinc ferrite particles: Synthesis and characterization
Ultrafine and nearly spherical particles of zinc ferrite were synthesized under mild hydrothermal conditions by precipitating from metal nitrates. These particles exhibited antiferromagnetic ordering below 13 K. Mössbauer spectroscopic measurements revealed the subdomain superparamagnetic nature of the particles havin…
Magnetic and crystallographic properties of NdCo4M (M=B, Al, and Ga)
The magnetic and crystallographic properties have been investigated for NdCo4M (M=B, Al, and Ga). The temperature dependencies of lattice parameters have been determined between 80 and 730 K by x-ray diffraction. NdCo4B crystallizes in the CeCo4B-type structure, whereas NdCo4M (M=Al and Ga) exhibits a CaCu5-type struc…
Effect of Propargyl Alcohol on Corrosion and Hydrogenation of Steel in Hydrochloric Acid Solution
A study has been made to investigate the effect of propargyl alcohol (PA) on corrosion and hydrogenation of mild steel exposed in hydrochloric acid solution at different temperatures, concentrations, and exposure times. Different ions have been added to the inhibited acid solution to study their roles on the inhibitiv…
High-energy product Sm-Co-based sputtered films, crystal texturing, and magnetic properties
Sm-Co-based sputtered films have been deposited that exhibit a remanence ratio for hysteresis loops measured out of the plane to in the plane of 0.04. These results have been obtained by thermalized sputtering this system in Ar, Ar+Xe mixtures, and in Xe. The use of Xe has allowed a more efficient thermalization of th…
Surface-enhanced Raman spectra of 2,2'-bipyrimidine adsorbed on silver sol
The surface-enhanced Raman spectrum of 2,2’-bipyrimidine adsorbed on silver sol has been obtained and analyzed by using a vibrational assignment previously determined for this azoaromatic molecule. Evidence was found for Ag-N bond formation with the silver substrate and a model is proposed for the adsorption on the ba…
Origin of orbital momentum and magnetic anisotropy in transition metals
Orbital angular momentum is necessary in order to have magnetic anisotropy. In a magnetic system, orbital angular momentum is caused by spin-orbit coupling as well as by many-body correlation effects. Standard band-structure calculations only include the first of these two contributions. In this paper it is argued tha…
The Dynamic Diffusion Layer in Branched Growth of a Conductive‐Polymer Aggregate in a 2‐D Electrolysis Cell
Abstract not Available.
Biomineralization of barite in the shell of the freshwater Asiatic clam Corbicula fluminea (Molluscs: Bivalvia)
Rosette‐shaped clusters of barite crystals were found on the depositional surface and in the inner, complex crossed‐lamellar shell layer of Corbicula fluminea collected from the Maurice River, New Jersey. Morphological analyses revealed that barite crystallized directly from the extrapallial fluid onto the inner shell…
Effect of Al substitution on the magnetic properties of RCo5 (R=rare earth)
Magnetic and structural characteristics of RCo5−xAlx have been established for R=Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Er, and Tm. All systems have the CaCu5 structure. Al and Co are randomly distributed over the Co-sublattice sites. Al-substitution decreases μCo and Tc and significantly alters magnetic anisotropy. Analysis…