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A knowledge of diffusion rates in thin films is often necessary in order to predict the useful operating temperature range of thin film components. The few reported measurements available generally indicate that film diffusion rates at low temperatures (25°–300 °C) are substantially higher than would be inferred from…
Equilibrium solubility data for ZnO in KOH are reported for KOH concentraiions up to 14M.Results of passivation time determination for horizontally orientated zinc anodes In alkaline zincate electrolytes are reported. These results are correlated in the form: (i–i1) tp½ = k, where k and i1 depend on [Zn(II)], [OH−] an…
Abstract To study the function of the carbon network, electrical conductivities and dielectric constants were measured on carbon black filled vulcanizates through the full range of elongation. Data were obtained for a variety of elastomers and carbon blacks, at different loading levels and covering the commercial part…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInduced dynamic nuclear spin polarization in photoreductions of benzophenone by toluene and ethylbenzeneGerhard L. Closs and Liselotte E. ClossCite this: J. Am. Chem. Soc. 1969, 91, 16, 4550–4552Publication Date (Print):July 1, 1969Publication History Published online1 May 2…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTADIABATIC GAS ABSORPTION AND STRIPPING IN PACKED TOWERSRobert E. TreybalCite this: Ind. Eng. Chem. 1969, 61, 7, 36–41Publication Date (Print):July 1, 1969Publication History Published online1 May 2002Published inissue 1 July 1969https://pubs.acs.org/doi/10.1021/ie50715a009ht…
UCRL-18456 Cs 2 BkC1 6 and Cs 2 NaBkC1 6 have been FreFared from aqueous solution on the scale of a few micrograms using the isotoFe 249Bk.The crystal structures of these comFounds have been determined.Cs 2 BkC1 6 is not isomorFhous with Cs 2 PuC1 6 or CS2CeC16' which exhibi ttrigonal symmetry, but rather is hexagonal…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDonor-acceptor complexes of the inorganic .pi. acceptor, bis-cis-(1,2-perfluoromethylethene-1,2-dithiolato)nickelRichard D. Schmitt, Richard M. Wing, and August H. MakiCite this: J. Am. Chem. Soc. 1969, 91, 16, 4394–4401Publication Date (Print):July 1, 1969Publication Histor…
Single crystal thin films of titanium have been epitaxially grown on NaCl substrates of three different orientations [(001), (110), (111)]. At thicknesses above 500 Å, the normal hexagonal close-packed structure is obtained. Below approximately 350 Å, the metal is seen to grow in a previously unreported face-centered…
The 719–730-cm−1 doublet in the infrared spectrum of polyethylene (PE) is known to shift to higher frequencies with decreasing temperature. In this work we have measured these peak positions as a function of temperature down to 10°K for three bulk polyethylene samples of three different degrees of crystallinity, as we…
The condition for metallic or non-metallic behaviour in compounds of transition metals is examined, with particular reference to titanates, vanadium and titanium oxides, and to Fe3O4
Abstract The effects of temperature and penetrant activity on the sorption kinetics and equilibria of a series of alkanes in glassy, biaxially oriented polystyrene were studied. Normal isomers of pentane, hexane, and heptane cause crazing of polystyrene film samples at high penetrant activities (> 0.85). Crazing ki…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation W. Buckel; Internal Stresses. J. Vac. Sci. Technol. 1 July 1969; 6 (4): 606–609. https://doi.org/…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolid solution of aluminum oxide in rutile titanium dioxideRichard A. Slepetys and Philip A. VaughanCite this: J. Phys. Chem. 1969, 73, 7, 2157–2162Publication Date (Print):July 1, 1969Publication History Published online1 May 2002Published inissue 1 July 1969https://pubs.ac…
From a critical evaluation of the available data on the system Na 2 O‐Al 2 O 2 and particularly on β‐Al 2 O 3 some of the discrepancies in the literature were resolved, and plausible phase diagrams for the system were constructed. The diagrams define needed equilibrium data and are useful in putting into perspective t…
Abstract A modus operandi is developed for determining the molecular structure of hydroxypropylcellulose (HPC), and characterizing, in quantitative terms, the morphological changes occurring when a water‐cast film of the polymer is deformed. This involves the application of the following eleven different physical meas…
We develop an analytical framework for the theory of plasticity in which the constitutive equations are single valued and which at the same time represents the proper physical concepts. A Coleman-Gurtintype thermodynamics which utilizes internal state variables is used for the study of an elastic-plastic substance. Qu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSteric parameters in drug design. Monoamine oxidase inhibitors and antihistaminesEberhard Kutter and Corwin HanschCite this: J. Med. Chem. 1969, 12, 4, 647–652Publication Date (Print):July 1, 1969Publication History Published online1 May 2002Published inissue 1 July 1969http…
A multistep kinetic process is postulated to describe the pyrolysis of nylon 6–6, phenolic CTL-91LD (a phenolic novalac resin), and their composites. Kinetic coefficients are derived from thermogravimetric analysis data (TGA) at heating rates varying from 3–60°C/min for each component. Three correlation techniques are…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure of aquomagnesium tetraphenylporphyrinRussell Timkovich and A. TulinskyCite this: J. Am. Chem. Soc. 1969, 91, 16, 4430–4432Publication Date (Print):July 1, 1969Publication History Published online1 May 2002Published inissue 1 July 1969https://pubs.acs.org/doi/10.102…
Abstract The kinetics of dehydration and decarboxylation as well as the glass transition temperature as a function of anhydride content were measured for poly(acry1ic acid). It was found that the glass transition of PAA is of the order of 103°C and increases with increasing anhydride content, reaching an extrapolated…