Materials Literature
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<mml:math><mml:mrow><mml:mo>(</mml:mo><mml:mn>111</mml:mn><mml:mo>)</mml:mo><mml:mo>[</mml:mo><mml:mn>1</mml:mn><mml:mover><mml:mn>1</mml:mn><mml:mi>¯</mml:mi></mml:mover><mml:mn>0</mml:mn><mml:mo>]</mml:mo></mml:mrow></mml:math> crystals of pure Cu–Al203 (particle size < 200 nm) have been strained between 5 and 204%…
Dynamic recrystallization (DRX) of Cu single crystals during tensile deformation in creep at elevated temperatures (0·6 ≤ T/T m ≤ 0·9) was investigated. At very high temperatures (T ≤ 0·8 T m), DRX occurred after steady state creep had been attained, while DRX commenced before deformation became stationary for lower d…
A procedure for Rietveld refinement from Debye–Scherrer X-ray diffraction patterns is described, in which the effects of instrumental aberrations on the peak shapes and positions are calculated and incorporated into the refinement model. These aberrations, neglected in previous Rietveld refinement programs, can produc…
Abstract The elastic field of a dislocation piercing the interface of an anisotropic bicrystal is obtained for the general case of a dislocation line refracted at the interface. The theory is based on the method of dislocation‐line force fans which reduce the three‐dimensional elastic field of the dislocation in the b…
Boundary surface films of monomolecular thickness of polyvinyl alcohol PVA deposited in a specific way onto transparent ITO or TAO electrodes induced parallel alignment of most available nematic liquid crystals having positive dielectric anisotropy. Chemisorption of PVA is improved by a previous ethyl silicate immersi…
<mml:math><mml:mrow><mml:mo>(</mml:mo><mml:mn>111</mml:mn><mml:mo>)</mml:mo><mml:mo>[</mml:mo><mml:mn>1</mml:mn><mml:mover><mml:mn>1</mml:mn><mml:mi>¯</mml:mi></mml:mover><mml:mn>0</mml:mn><mml:mo>]</mml:mo></mml:mrow></mml:math> crystals of pure Cu and Cu–Al2O3 (particle size < 200 nm) have been subjected to rolling…
Our work with gratings in dielectric image guide shows that it is distinctly advantageous to place the grating notches on the sides of the guide, or on the top of the guide, depending on the mode used. Means are discussed for modeling gratings using an equal-line-length transmission-line equivalent circuit. Excellent…
The increase in the electrical resistance of the specimen, associated with the α→ω transformation in Ti, has been used to obtain the fraction ζ of the ω phase as a function of time under isobaric–isothermal conditions in the pressure range 4–9 GPa and at 300±3 K. In the entire pressure range ζ–t data fit an equation o…
1. Introduction. In order to provide a continuum mechanical model for capillarity, the Dutch physicist D
The two-band transport model is expanded in order to analyze the Hall mobility of p-type III–V compound semiconductors. Using this model, the drift and the Hall mobilities can be calculated separately. The alloy scattering as an additional scattering mechanism in alloy semiconductor systems is assumed and the Hall mob…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPoly(methacrylic acid) derivatives. 7. Chiroptical properties of optically active poly(N-methacryloyl-L-alanine) and poly(N-methacryloyl-L-alanine-co-N-phenylmethacrylamide)Joelle Morcellet-Sauvage, Michel Morcellet, and Claude LoucheuxCite this: Macromolecules 1983, 16, 10,…
Charlesite, ideally Ca 6 (Al,Si) 2 (SO 4 ) 2 (B(OH) 4 )(OH,O) 12 .26H 2 O, is the Al analogue of sturmanite. Hexagonal, probable space group P31c, with a = 11.16(1), c = 21.21(2)angstrom.--Modified journal abstract.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, characterization, and spectroscopic studies of some metal derivatives of hemiporphyrazineD. Attanasio, I. Collamati, and E. CervoneCite this: Inorg. Chem. 1983, 22, 22, 3281–3287Publication Date (Print):October 1, 1983Publication History Published online1 May 2002…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA photoelectron spectroscopic study of the zirconium monohalide hydrides and zirconium dihydride. Classification of metal hydrides as conventional compoundsJohn D. Corbett and Henry S. MarekCite this: Inorg. Chem. 1983, 22, 22, 3194–3202Publication Date (Print):October 1, 19…
Examination of type material showed that 8 taxa must be reduced to synonomy with Thalassiosira punctigera (Castr.) comb, nov., an extremely variable species as to size and valve structure. Preliminary experiments indicated a certain relationship between the areola size and the temperature at which clonal cultures had…
Uranium-plutonium carbide offers an improved fuel system for advanced breeder reactors. The high-thermal conductivity and density of carbide fuels permit superior breeding performance and high specific power operation. These advantages combine to increase plutonium production, reduce fuel cycle and power costs, and lo…
We investigate the coupling of the collective modes of a coexistent incommensurate charge-density-wave (CDW) superconductor (SC). We use a gauge-invariant random-phase approximation that correctly includes screening to treat both the amplitude and phase modes of the coupled system. Unlike previous work, the SC and CDW…
Abstract Wide‐angle x‐ray line broadening methods have been used to determine the crystallite size and degree of distortion for the crystalline hard domains in MDI/diol polyurethane elastomers. Crystallite widths have been determined from the integral breadths of the 00 l reflections following correction for distortio…
Kinetics of water-soluble contrast media in the central nervous systemMR SageAudio Available | Share
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectronic structure of metalloporphyrins. 2. Experimental electron density distribution of (meso-tetraphenylporphinato)iron(III) methoxideClaude Lecomte, Dana L. Chadwick, Philip Coppens, and Edwin D. StevensCite this: Inorg. Chem. 1983, 22, 21, 2982–2992Publication Date (P…