Materials Literature
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The rapid evaporation or condensation of a vapor bubble when out of equilibrium compared to the slow dissolving or growth of an air bubble results in quite different propagation properties of sound waves through water containing one or the other types of bubbles. Adapting a method developed by Foldy in his treatment o…
Four types of measurement on thin Permalloy films are discussed which in the coherent-rotation theory yield equivalent values for the anisotropy field Hk: (A) Hysteresis loop; (B) high field torque; (C) rotational hysteresis; (D) torque 90° to the easy axis. Results reported for several films show that the values obta…
Some ferroelectric and crystallographical properties of the compound ${\mathrm{Bi}}_{4}$${\mathrm{Ti}}_{3}$${\mathrm{O}}_{12}$ are presented. The compound has a dielectric maximum at 685\ifmmode^\circ\else\textdegree\fi{}C on increasing temperature and at 670\ifmmode^\circ\else\textdegree\fi{}C on decreasing temperatu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhthalocyaninosilicon CompoundsRalph D. Joyner and Malcolm E. KenneyCite this: Inorg. Chem. 1962, 1, 2, 236–238Publication Date (Print):May 1, 1962Publication History Published online1 May 2002Published inissue 1 May 1962https://pubs.acs.org/doi/10.1021/ic50002a008https://do…
Tetrahedrally-coordinated trivalent iron has been found to be a common impurity in flux-grown crystals of zinc oxide. The room temperature paramagnetic resonance spectrum of isolated ions may be described by a conventional axial spin Hamiltonian with parameters: $g=2.0060\ifmmode\pm\else\textpm\fi{}0.0005$, $D=\ensure…
The structure of the interrnetallio compound Co4Al,a is similar to that of 'FeA1 a' with which it forms a complete series of solid solutio~m. Refinement of the structure reveals certain differences in detail.
Changes in the structure of PTFE produced by different cooling rates from the sintering temperature and following permanent mechanical deformation have been studied with the electron microscope. Slow cooling rates resulted in longer and wider striated bands (which constitute the PTFE) than fast cooling rates, however,…
Chair conformation of Ring 8 Ring C 3 2 1 1 2 3 4A 1 2 3 4 5A "C ~C Fig. 8. Chairconfiguration of ring B and C.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHE OXIDATION OF COPPER FILMS TO CuO0.67Harold Wieder and A. W. CzandernaCite this: J. Phys. Chem. 1962, 66, 5, 816–821Publication Date (Print):May 1, 1962Publication History Published online1 May 2002Published inissue 1 May 1962https://pubs.acs.org/doi/10.1021/j100811a010ht…
The effect of adding the rare-earth elements to cobalt, iron, and nickel has been investigated. Antiferromagnetic coupling was found to exist in the cobalt and iron rare-earth compounds. The moment per formula unit of the compound Co5Y is increased when Sm, Pr, and Nd are substituted for yttrium and decreased when Tm,…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpecies Equilibria in Nickel(II) Porphyrin Solutions: Effect of Porphyrin Structure, Solvent and TemperatureWinslow S. Caughey, Ralph M. Deal, Byron D. McLees, and James O. AlbenCite this: J. Am. Chem. Soc. 1962, 84, 9, 1735–1736Publication Date (Print):May 1, 1962Publicatio…
The locus of points on the (α,κ/σT) plane for a two-band (electrons and holes) semiconductor as the concentration of doping agent is changed, is a curve that forms a closed loop, where α is the Seebeck coefficient, κ the thermal conductivity, σ the electrical conductivity, and T the absolute temperature. The value of…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of Boron NitrideT. E. O'ConnorCite this: J. Am. Chem. Soc. 1962, 84, 9, 1753–1754Publication Date (Print):May 1, 1962Publication History Published online1 May 2002Published inissue 1 May 1962https://pubs.acs.org/doi/10.1021/ja00868a065https://doi.org/10.1021/ja0086…
The thermodielectric converter, a device employing a ferroelectric material as the active element in converting thermal to electrical energy, is analyzed. The efficiency and power-handling capacity are calculated for operation of a ferroelectric material in the induced-ferroelectric region on the basis of an idealizat…
The infrared transmission of degenerate arsenic-doped germanium was measured at liquid-helium and at room temperature. The 4.2\ifmmode^\circ\else\textdegree\fi{}K data were used to calculate the energy gap of the degenerate material. For this, two operations were necessary: (1) to subtract the large effect of free car…
In order to obtain some informations on the electronic structure of Mn 4 N, the magnetic properties of Mn 4 N compounds, partially substituted by In and Sn respectively, are studied by a newly devised magnetic torsion balance. These compounds show very complicated temperature- and composition-dependences of saturation…
Some ferroelectric and crystallographical properties of the compound ${\mathrm{Ba}}_{2}$${\mathrm{Bi}}_{4}$${\mathrm{Ti}}_{5}$${\mathrm{O}}_{18}$ are presented. The compound represents a new structure with the unit cell consisting of one ${\mathrm{Bi}}_{2}$${\mathrm{O}}_{2}^{2+}$ layer and five perovskite layers. From…
Abstract It was reported in a preceding paper7) that the Ando soils from Uemura, Choyo, and Kawanishi contained an unknown mineral colloid which was distinctly different in some respects from coexisting allophane. In the Uemura soil, this clay fraction made up more than 20 per cent of the total clay and more than 6 pe…
Moderately strong, very broad absorption bands observed in dilute lanthanide bromide solutions in nearly anhydrous ethanol are interpreted as electron transfer from the highest filled M.O. to the partly filled 4f shell in the case of Nd(III), Sm(III), Eu(III), Tm(III) and Yb(III). Good agreement is obtained with a the…
Abstract The dynamic shear modulus at very high strains, ( G ∞ ), of carbon black filler loaded vulcanizates is regarded as due to the product of two factors: ( a ) a hydrodynamic interaction due to filler particles, and ( b ) a second factor for which evidence is given suggesting that it arises from a few strong link…