Materials Literature
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The yield stress data of irradiated Ferrovac iron are shown to be closely approximated by the expression Δ[sgrave]=A[1—exp (—Bφt)]1/2 with a saturation exposure of 2 × 1019 nvt (E > 1·45 MeV). The maximum increment in the yield stress is 25 000 p.s.i. and the volume of the defect calculated from B is 4·4 × 10−19 cm3.…
A method is presented for obtaining the far-field diffraction pattern of a plane aperture when the mutual coherence function of the illumination contains a quadratic phase term. The method is applied to obtain the diffraction pattern of a slit and circular aperture illuminated by an extended quasimonochromatic incoher…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolybdovanadophosphoric acids and their salts. II. Investigation of solution propertiesCalvin J. Hallada, George A. Tsigdinos, and B. S. HudsonCite this: J. Phys. Chem. 1968, 72, 12, 4304–4307Publication Date (Print):November 1, 1968Publication History Published online1 May…
Abstract 9,10‐Bis(hydroxymethyl)triptycene, 9,10‐dihydro‐9,10‐bis(hydroxymethyl)‐9,10‐ethanoanthracene, 9,10‐dihydro‐9,10‐bis(hydroxymethyl)‐9,10‐(2,3‐bicyclo[2.2.1] heptano)‐anthracene, 9,10‐dihydro‐9,10‐bis(hydroxymethyl)‐ N ‐phenyl‐9,10‐ethanoanthracene‐11,12‐dicarboximide, and 9,10‐bis(carbethoxy)triptycene have b…
Abstract Energy density to break measurements on a number of polymers, either partly swollen or dry, reveal that there is a simple relationship between the energy density to break and the hysteresis obtained in the first stress strain cycle taken very near to break. The hysteresis at break was varied by changing the t…
The early stages of growth of oxide films on a Cu–26 wt.-% Zn alloy and their later development into thick scales have been studied by metallography and electron probe microanalysis. Thick scales have been examined conventionally in cross-section whereas thin films, about 1000–5000 Å thick, have been examined in plan.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLanthanide picolinate chelate stabilitiesJ. E. Powell and J. W. IngemansonCite this: Inorg. Chem. 1968, 7, 11, 2459–2461Publication Date (Print):November 1, 1968Publication History Published online1 May 2002Published inissue 1 November 1968https://pubs.acs.org/doi/10.1021/ic…
(1968). The Oxidation of UC and UN Powder in Air. Journal of Nuclear Science and Technology: Vol. 5, No. 11, pp. 600-602.
An account is given of the measurement of the transverse deformation of fibres under various loads acting normal to the fibre longitudinal axis by a technique in which fibres are interleaved between glass plates in a vertical stack. Graphs of transverse load against compression are plotted for nylon, acrylic, and visc…
A rapid and convenient method is described for the accurate determination of the thickness of carbon films from their optical density. A linear relationship was found between optical density and film thickness. The optical-density-thickness curve was calibrated by direct measurement of the thickness of transverse sect…
Abstract Styrene was graft‐copolymerized onto wood cellulose by the ceric ion method of Mino and Kaizerman. The grafting reaction was found to depend strongly on the concentration of ceric ion in the grafting system and maximum grafting occurred in a narrow range of concentration of initiator, 1.0 × 10 −3 ‐1.8 × 10 −3…
Phase relations in the binary system K 2 O‐GeO 2 were determined by conventional quenching techniques. Three compounds, K 2 O.2GeO 2 , 3K 2 O.11GeO 2 , and K 2 O.7GeO 2 , exist in the composition range 65 to 100% GeOn. The compound 3K 2 O.1lGeO 2 melts congruently at 1055°C, whereas K 2 O.2GeO 2 and K 2 O.7GeO 2 melt…
Deformation mechanism of the elastic region which follows the nonlinear frictional region in shearing of plain-weave fabrics is analyzed, and the elastic shear modulus is determined in terms of the mechanical properties of the yarn and the geometrical parameters of the fabric. The mechanical behavior of the three-dime…
Threshold spectral sensitivities (in the dark, or against bright colored backgrounds) are identical in the red-green range for both protanopes (dichromats) and protanomalous trichromatic color defectives. The latter, however, must have an additional photolabile cone pigment in the red-green range, and its presence is…
The three-dimensional orientation distribution function of crystallites in cold-rolled copper sheets has been calculated from 512 individual selected area electron-diffraction orientation determinations as well as from (111), (200), and (220) pole figures which were determined by x-ray diffraction. In both cases tube-…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIonic Clusters in High-Strength Carboxylic RubbersA. V. Tobolsky, P. F. Lyons, and N. HataCite this: Macromolecules 1968, 1, 6, 515–519Publication Date (Print):November 1, 1968Publication History Published online1 May 2002Published inissue 1 November 1968https://pubs.acs.org…
Abstract Die Darstellung, Analyse und einige physikalische Eigenschaften der Phasen “Sn 4 As 3 ” und “Sn 4 P 3 ” werden beschrieben. Die bereits bekannte Kristallstruktur wird bestätigt und verfeinert (s. Tab. 1).
Abstract The influence of various thermal pretreatments on the nucleation of isotactic polystyrene has been studied quantitatively by dilatometry. A distinction can be made between nuclei still present above the melting point (“resistant” nuclei) and nuclei created by severe supercooling (“induced” nuclei). The number…
Thin foils of U4O9 prepared from bulk single crystals of UO2 were investigated at 20 °C and between 300 °C and 1000 °C in the electron microscope. At 20 °C the complete reciprocal lattice of U4O9 has been established. Between about 550° and 700°C an order-partial disorder transformation has been found in most of the s…
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