Materials Literature
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Some recent developments in the dislocation theory of plastic deformation in ionic crystals are reviewed. It has been found that the Peierls force operates on slip planes of type {110} and {00l}, that interactions between dislocations and point defects are different on these planes, that point defects are produced by…
Abstract Interstratified illite-smectites from Carboniferous sediments from the Alston and Askrigg blocks and the intervening Stainmore trough of the northern Pennines, UK, were examined by XRD. Both blocks are underlain by Caledonian granites. During late Carboniferous times sediments overlying the Alston block were…
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 R. G. Larson; Nonlinear Shear Relaxation Modulus for a Linear Low‐Density Polyethylene. J. Rheol.…
Abstract Die Oxidsulfide A — CaLaGa 3 S 6 O a = 9,2706(8), c = 6,0351(9) Å; B — SrLaGa 3 S 6 O a = 9,347(10), c = 6,0893(10) Å; C — La 2 ZnGa 2 S 6 O a = 9,3653(15), c = 6,0928(10) Å und D — Sr 2 ZnGe 2 S 6 O a = 9,4054(7), c = 6,1718(7) Å wurden erstmals präpariert. Für A und C wurden die Lageparameter mit Einkristal…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA vibrational spectroscopic characterization of the solid-phase behavior of n-decylammonium chloride (n-C10H21NH3Cl) and bis(n-decylammonium) tetrachlorocadmate [(n-C10H21NH3)2CdCl4]H. L. Casal, D. G. Cameron, and H. H. MantschCite this: J. Phys. Chem. 1985, 89, 25, 5557–556…
Glass formation in the systems (mole percent) 25La 2 O 3 · xR 2 O 3 · (75 ‐ X)B 2 O 3 (R = Al, Ga) and (25 ‐ x)La 2 O 3 · xLn 2 O 3 · 75B 2 O 3 (Ln = Gd, Er, Y) was investigated. Up to 25 mol% Al 2 O 3 or Ga 2 O 3 can be substituted for B 2 O 3 , but more than ∼ 5 mol% Ln 2 O 3 substituted for La 2 O 3 caused macro ph…
The anodic oxygen evolution reaction on Teflon‐bonded and Li‐doped in solution was studied by potentiostatic and galvanostatic techniques as a function of hydroxyl ion concentration, and the kinetic equations were derived. It was shown that the rate‐determining step (rds) for at current densities of 100–1000 mA‐cm −2…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNMR of silk fibroin. 4. Temperature- and urea-induced helix-coil transitions of the -(Ala)n- sequence in Philosamia cynthia ricini silk fibroin protein monitored by carbon-13 NMR spectroscopyTetsuo Asakura and Toshio MurakamiCite this: Macromolecules 1985, 18, 12, 2614–2619P…
Changes in the silicate concentration of the culture medium at growth-saturating concentrations had little effect on the silica content of cells of Coscinodiscus granii Gough at a given light intensity. However, there was a highly significant inverse relationship between silica content and light intensity. At a silica…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal and band electronic structures of an organic salt with the first three-dimensional radical-cation donor network, (BEDT-TTF)Ag4(CN)5Urs Geiser, Hau H. Wang, Larry E. Gerdom, Millicent A. Firestone, Lauren M. Sowa, and Jack M. WilliamsCite this: J. Am. Chem. Soc. 1985,…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular characterization of poly(2-methyl-1,3-pentadiene) and its hydrogenated derivative, atactic polypropyleneZhongde Xu, Jimmy Mays, Xuexin Chen, Nikos Hadjichristidis, F. C. Schilling, H. E. Bair, Dale S. Pearson, and Lewis J. FettersCite this: Macromolecules 1985, 18,…
A surface topography measuring system using SEM with a pair of secondary electron detectors has been developed. The detectors' outputs are processed by a micro-computer to construct a calibrated surface profile of a specimen. A resolution of 2 nm In the Z-direction has been obtained. The system also provides sum and d…
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 Miguel A. Bibbo, Steven M. Dinh, Robert C. Armstrong; Shear Flow Properties of Semiconcentrated F…
Abstract Imogolite, a natural product in the clay fraction of Japanese soil, was characterized through its dilute solution properties. Various methods were employed for this characterization, including viscosity, sedimentation, static/dynamic light scattering, and small angle X‐ray scattering. All these measurements h…
The problem of the enhancement of the removal of a volatile impurity in a polymer film by the addition of a second solvent is analyzed. The introduction of a second solvent that diffuses faster than the impurity can increase the free volume of the system and can thus facilitate removal of the volatile impurity. Soluti…
Abstract The effects of reduction and reoxidation of octahedral Fe 3+ on the exchange of structural hydrogen in nontronite were determined using tritium ( 3 H) as a label element. The uptake of H from the surrounding solution of nontronite suspensions increased as the reduction of structural Fe 3+ increased. Similarly…
Proton NMR spectra of serine proteases in 1H2O solutions typically show a single resonance at very low magnetic field--i.e., 14-18 ppm from dimethylsilylapentanesulfonate. This resonance has been assigned to the proton hydrogen bonded between aspartic acid-102 and histidine-57 (chymotrypsin numbering system) of the "c…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotoresponsive polymers. 7. Reversible solubility change of polystyrene having pendant spirobenzopyran groups and its application to photoresistsMasahiro Irie, Takao Iwayanagi, and Yoshio TaniguchiCite this: Macromolecules 1985, 18, 12, 2418–2422Publication Date (Print):Dec…
Alcohols have been shown to be useful as oxidizing agents of diethylzinc for the growth of ZnO films by MOCVD. C -axis oriented ZnO films have been deposited on glass substrates at 300°C. The problem of a premature reaction, which is observed between diethylzinc and oxygen or water vapor, is shown to be overcome when…
Nitrogen mineralization process in the submerged soils was mathematically formulated by a new technique, and parameters in the formula were examined in relation to temperature and soil properties. Thirteen Japanese soils including manured and non-manured soils and 4 Philippine soils were used in this experiment with o…