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A powder neutron diffraction study of stoichiometric NiS has been made in the range 85–770°K. The NiAs-type structure can be obtained at room temperature by quenching from above 700°K. This NiAs form exhibits a paramagnetic-antiferromagnetic transition at 263°K. In the antiferromagnetic state the moments in a hexagona…
Pleochroism of the infrared absorption of muscovite has been measured under moderate resolution. The results are discussed in terms of the idealized mica structure. From the pleochroism of the OH stretching band, orientation of the vibrational transition moments can be determined. These moments are tilted out of the c…
The magnetostriction of single-crystal yttrium iron garnet (YIG) has been measured from liquid nitrogen temperature to 450°K. The theory of magnetostriction of cubic crystals has also been extended to Néel ferrimagnets. The theoretical predictions of the temperature-dependent magnetostriction coefficients h1 and h2 ar…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHE FREE ENERGY OF SiC FROM ITS SOLUBILITY IN Fe AND FROM GAS—SOLID EQUILIBRIA WITH SiO2, GRAPHITE, AND CORichard H. Rein and John ChipmanCite this: J. Phys. Chem. 1963, 67, 4, 839–841Publication Date (Print):April 1, 1963Publication History Published online1 May 2002Publish…
The direction of easy magnetization in pyrrhotite deviates from the (001) plane below 205°K. We have measured the thermal variations of the anisotropy constants and the spontaneous magnetization between 4.2° and 292°K and determined the fraction of Fe3+ ions on each sublattice.
A series of constant strain range tests was made for a wide variety of materials producing fatigue lives varying from a few cycles to about one million cycles. The specimens were subjected to axial, compression-tension, low-frequency fatigue about a zero mean strain. Load range was measured periodically throughout eac…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Reaction of Sodium Borohydride with Nickel Acetate in Ethanol Solution--A Highly Selective Nickel Hydrogenation CatalystHerbert C. Brown and Charles A. BrownCite this: J. Am. Chem. Soc. 1963, 85, 7, 1005–1006Publication Date (Print):April 1, 1963Publication History Publi…
Abstract The view that the glass transition is basically thermodynamic in nature is used to derive an expression for glass temperature depression by plasticizers. The second‐order transition temperature is given as that temperature at which the configurational entropy first becomes zero as we cool the polymer–diluent…
The results are given of comprehensive measurements on the magnetic and crystallographic properties of the ferromagnetic Heusler alloys Cu2MnAl, Cu2MnIn, Cu2MnSn, Cu2MnGe, Au2MnAl, and the antiferromagnetic alloy Cu2MnSb. The alloys Cu2MnBi and Cu2MnGa are polyphase and the ferromagnetism may be due to binary phases p…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSTABILIZATION OF WATER-IN-OIL EMULSIONS BY SOLID PARTICLES1E. H. Lucassen-Reynders and M. VAN DEN TempelCite this: J. Phys. Chem. 1963, 67, 4, 731–734Publication Date (Print):April 1, 1963Publication History Published online1 May 2002Published inissue 1 April 1963https://pub…
Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text T. M. Bieniewski and S. J. Czyzak, "Refractive Indexes of Single Hexagonal ZnS and CdS Crystals," J. Opt. Soc. Am. 53, 496-497 (1963) Export Citation B…
The feeding of 6 copepods ( Calanus finmarchicus, Acartia tonsa, Centropages hamatus, C. typicus, Labidocera aestiva, and Tortanus discaudatus ) was examined with 3 different foods—a) diatoms ( Thalassiosira fluviatilis ) alone, b) diatoms plus Artemia nauplii, and c) Artemia alone—and compared with the structure of t…
In paramagnetic aromatic systems the relation between the hyperfine coupling constants a H for the protons and the spin density ρ on the adjacent carbon atom is usually given by the relation a H = -Qρ (McConnell) in which Q is a constant characteristic for the C-H bond. In the paramagnetic ions of aromatic molecules t…
The collision of plates at high velocity sometimes causes them to be metallurgically bonded. A study has been made of the nature of the bonds and of the conditions required to produce bonding. A necessary requirement is the formation of a jet in the space ahead of the region of impact. When the collision region moves…
Abstract The magnetic anomalies in vertical, horizontal, and total intensity for the thin infinite dike are shown to belong to a single mathematical family of curves for all values of dip and strike of the dike and all values of inclination of the magnetizing field. The complete family of standard curves has been cons…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStereochemistry of Discrete Eight-Coördination. I. Basic AnalysisJ. L. Hoard and J. V. SilvertonCite this: Inorg. Chem. 1963, 2, 2, 235–242Publication Date (Print):April 1, 1963Publication History Published online1 May 2002Published inissue 1 April 1963https://pubs.acs.org/d…
A systematic unified review is given of the basic statistical theory of the multiple scattering of fast charged particles in the small-angle range. The approximation considered is that of the Snyder-Scott-Moliere theory, and only slight attention is given to the less accurate Gaussian approximation. The single-scatter…
Abstract This paper reports measurements and theory concerning stationary, resonant single bubbles which have been formed in a vertically vibrating liquid column at frequencies of 40–1050 c./s. With liquids of high viscosity (ca. 10 poise) the bubbles can be made large enough to occupy the entire cross‐section of the…
Silicon single crystals are grown by the Czochralski method with a variety of growth rates and rotation rates. Segregation coefficients of impurities are found to depend on the growth conditions as is expected by the existing theory. Diffusion coefficients of impurities in silicon melt are determined for B, Al, Ga, In…
Aqueous solutions of lead salts (1, 2) and saturated