Materials Literature
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The word "one-shot" in flexible urethane foam technology was the harbinger of lower cost products with reproducible properties. The development of L-520 organosilicone stabilizers along with tin catalysts made one- shot flexible foam a reality. The basic prin ciples learned in flexible foam have been ex tended to a on…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Heat of Hydration of Cobalt Sulfate Hexahydrate to Heptahydrate. Their Solubilities and Heats of Solution1G. E. Brodale and W. F. GiauqueCite this: J. Phys. Chem. 1965, 69, 4, 1268–1272Publication Date (Print):April 1, 1965Publication History Published online1 May 2002Pu…
A description is given of the design, construction and use of an attachment for an X-ray diffractometer which enables lattice parameters to be determined to 1 part in 20 000 at temperatures between room temperature and 1000°C. Special attention is given to the problems of temperature measurement and uniformity. The in…
The semiconductor to metal transition in VO 2 is discussed in connection with the crystal distortion on the basis of a simplified one-dimensional model. It is shown that a localized electron state forming ion pairs will be stabilized at low temperatures when the transfer energy makes a sudden increase for a small cont…
Abstract A study of the elastic properties of collagen tendons while in the crystalline state while undergoing shrinkage, and while in the amorphous state was carried out. An additional analysis of x‐ray diffraction patterns and birefringence was also performed. Our main observations are the following. The lattice spa…
Abstract The pressure drop of aqueous model nylon fibre suspensions was determined in a vertical 2‐in. copper tube in the turbulent range as a function of velocity, fibre length‐to‐diameter ratio (L/D) and concentration. Fibre diameters ranged from 20.2 to 51.6 microns and length from 0.52 to 1.21 mm. A marked depress…
"Fundamentals of Heat Transfer." Nuclear Science and Engineering, 21(4), pp. 586–587
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComplexes Derived from Strong Field Ligands. XX. The Effect of Extraplanar Ligands on the Properties of Transition Metal 4,4',4",4'"-TetrasulfophthalocyaninesJames H. Weber and Daryle H. BuschCite this: Inorg. Chem. 1965, 4, 4, 472–475Publication Date (Print):April 1, 1965Pu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Differential Thermal Analysis of Perchlorates. VII. Catalytic Decompositions of the Alkali Metal Perchlorates by Manganese DioxideMeyer M. Markowitz and Daniel A. BorytaCite this: J. Phys. Chem. 1965, 69, 4, 1114–1123Publication Date (Print):April 1, 1965Publication Hist…
Abstract Das bisher unbekannte CaSc 2 O 4 wurde dargestellt und untersucht. CaSc 2 O 4 ist farblos, es kristallisiert orthorhombisch, Raumgruppe D ‐Pnam mit den Gitterkonstanten a = 9,65, b = 11,20, c = 3,16 Å. Die Elementarzelle enthält 4 Formeleinheiten. Die Kristallstruktur wurde unter Verwendung von P ATTERSON ‐ u…
Alloys of nominal composition Bi 2−x Sb x Te 3+y were prepared in an evacuated, sealed ampule by a horizontal zone melting method. Single-crystal samples were cut from the ingots, and measurements of Seebeck coefficient, electrical conductivity, thermoelectric figure of merit (Z), and thermal conductivity (κ) were mad…
The segregation of MgO solute at grain boundaries in Al 2 O 3 controls the grain‐growth kinetics during sintering. In the initial stages of sintering where grain growth can be neglected, the MgO solute causes a decreased sintering rate by reducing the surface energy and/or the diffusion coefficient of the rate‐determi…
Abstract Literature data for the effect of mineral fillers on the mechanical properties of polyethylene at two temperatures, styrene–butadiene rubber, and natural rubber were examined. The data for modulus, tensile strength, elongation at yield, and ultimate elongation could be well represented by linear plots of the…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure and Bonding in a Ten-Coordinate Lanthanum(III) Chelate of Ethylenediaminetetraacetic Acid1M. D. Lind, Byungkook Lee, and J. L. HoardCite this: J. Am. Chem. Soc. 1965, 87, 7, 1611–1612Publication Date (Print):April 1, 1965Publication History Published online1 May 20…
The infrared spectra of bis(glycino) complexes of Pt II, Pd II, Cu II, and Ni II have been measured from 4000 to 250 cm−1. For cis-bis(glycino) Cu II monohydrate, the spectra have been obtained including its three deutero analogs. Normal coordinate analyses have been carried out on all these complexes using the 1:1 (m…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOn the Structure-Dependent Behavior of Ethylenediaminetetraacetato Complexes of the Rare Earth Ln3+ Ions1J. L. Hoard, Byungkook Lee, and M. D. LindCite this: J. Am. Chem. Soc. 1965, 87, 7, 1612–1613Publication Date (Print):April 1, 1965Publication History Published online1 M…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVolume Changes as a Criterion for Site Binding of Counterions by Polyelectrolytes1Ulrich P. Strauss and Yuen Po LeungCite this: J. Am. Chem. Soc. 1965, 87, 7, 1476–1480Publication Date (Print):April 1, 1965Publication History Published online1 May 2002Published inissue 1 Apr…
The intermetallic compound TiNi has been observed to undergo a martensitic transformation preceded by a second-order diffusionless transformation. Electron metallographic and X-ray evidence is presented in support of this view. Crystal structure data are presented for the displacive transformation products. The possib…
Oxygen diffusion in fused silica was measured over the range 850° to 1250°C by means of heterogeneous isotope exchange. In this temperature range and at 1 atm oxygen pressure the diffusion coefficients can be represented by the relation: D = 2 × 10 −9 exp (‐29 kcal/ RT). The oxygen diffusion coefficients are almost di…
"Nuclear and Radiochemistry." Nuclear Science and Engineering, 21(4), pp. 584–585