Materials Literature
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The tensile deformation of chemically polished magnesium oxide crystals has been correlated with the distribution of slip at the onset of plastic flow. If two slip bands, generated on orthogonal {110} planes, happen to intersect to nucleate a crack before other slip bands develop nearby, then the crack so formed is un…
Zur Ergänzung bekannter Verfahren zur Bestimmung thermodynamischer Kenngrössen von Legierungen 1 wurden folgende Möglichkeiten experimenteil geprüft:( 1) Direktkalorimetrische Vereinigung der Komponenten (a) mit Fe-S-Gemisch (50 At. prozent) als Zündmaterial (b) durch Zündung mit einem in das Kalorimeter fallenden Hei…
Tafel‐type cathodic polarization curves were obtained for aluminum alloys corroding in anaerobic acid and food media. The overvoltage‐intercept method was found to give corrosion currents equivalent to the measured rates of hydrogen evolution. Tafel‐type anodic polarization curves could not be obtained. Anodic polariz…
Theories of the mechanism of film growth and breakdown on zirconium and zircaloy‐2 are discussed in the light of recent evidence obtained at A.E.R.E. and a further explanation of the observed phenomena is offered. Additional experiments which are necessary to obtain confirmatory information are considered.
Abstract Aus Plumeria rubra var. alba (Apocynaceae) wurden neben dem bereits bekannten Fulvoplumierin das schon früher aus PI. multiflora isolierte Plumericin, sowie neu Isoplumericin, β‐Dihydroplumericin und β‐Dihydroplumericinsäure isoliert. Die vier Stoffe wurden charakterisiert und ihre Konstitution und Stereochem…
Abstract Exchange isotherms determined for the K‐A1 ion pair with montmorillonite, kaolinite and two soils were S‐shaped. In dilute solutions (<0.05 N ), A1 was strongly preferred by exchange sites except at low levels of K‐saturation. In more concentrated solutions (0.1 to 0.25 N ), K was preferred when its satura…
The cathodic behavior of iron, , and have been investigated in the borate/ buffer solution of . The hydrogen overpotential on iron is found to vary on surfaces of different crystallographic orientation and with changes in the surface microstructure. The immersion potentials and cathodic reduction behavior with regard…
Abstract CsCl und CoCl 2 bilden ein vierfach eutektisches System mit den Verbindungen Cs 3 CoCl 5 , Cs 2 CoCl 4 und CsCoCl 3 . Zwei weitere Verbindungen — Cs 5 Co 2 Cl 9 und Cs 3 Co 2 Cl 7 — zersetzen sich im festen Zustand. Im System RbCl/CoCl 2 liegen vor: Drei Eutektika, die Verbindungen Rb 2 CoCl 4 und RbCoCl 3 ,…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTProgress in Semiconductors.Morton E. JonesCite this: J. Am. Chem. Soc. 1961, 83, 2, 507–508Publication Date (Print):January 1, 1961Publication History Published online1 May 2002Published inissue 1 January 1961https://doi.org/10.1021/ja01463a076RIGHTS & PERMISSIONSArticle Vie…
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G. E. Walrafen and D. M. Dodd, Trans. Faraday Soc., 1961, 57, 1286 DOI: 10.1039/TF9615701286
J. H. Golden, J. Chem. Soc., 1961, 3741 DOI: 10.1039/JR9610003741
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEFFECTS OF DEHYDRATION AND CHEMISORBED MATERIALS ON THE SURFACE PROPERTIES OF AMORPHOUS SILICAW. K. Lowen and E. C. BrogeCite this: J. Phys. Chem. 1961, 65, 1, 16–19Publication Date (Print):January 1, 1961Publication History Published online1 May 2002Published inissue 1 Janu…
The nomenclature of the chloritoid group, which includes ottrelite, is reviewed. Five new chemical analyses, and all published analyses that are considered reliable, indicate that the chloritoid group can be represented by the general formula H 2 FeAI 2 SiO 7 with up to two-fifths of the ferrous iron replaced by magne…
The dynamical Jahn-Teller effect in the benzene negative ion is investigated by estimating the vibronic eigenfunctions and energies for the lowest energy degenerate and lowest energy nondegenerate vibronic states using Hückel molecular orbital theory and the normal coordinates for the 606 cm—1 and 1595 cm—1 E2g vibrat…
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Abstract Restrictions on freedom of rotation about the bonds of a polymer chain usually impose drastic limitations on the conformational states of polymer chains, and hence are of foremost importance in affecting the tendency of the polymer to crystallize. The severity of these restrictions notwithstanding, the random…
Mixed crystals NaCl-CdCl 2 containing a few mole per cent of CdCl 2 were examined by X-ray method. By a certain heat treatment, precipitates of a structure having f.c.c. lattice with lattice constant twice as that of the matrix are formed within the matrix. By another heat treatment, there appear diffuse spots corresp…
Cannulas were implanted in the lateral ventricles, cisterna magna and subarachnoid spaces of goats. Perfusion with synthetic cerebrospinal fluid (CSF) permitted study of exchange rates of test materials between CSF perfusion fluid and blood. Diodrast or phenolsulfonphthalein in low concentrations is removed from ventr…
B. Dacre and P. A. H. Wyatt, Trans. Faraday Soc., 1961, 57, 1281 DOI: 10.1039/TF9615701281