C. G. Moore、B. R. Trego1964-09-01Journal of Applied Polymer Science
Abstract Determinations of the degree of chemical crosslinking and crosslinking efficiency values E (i.e., the number of sulfur atoms combined in the network per chemical crosslink present) have been used in conjunction with the chemical probes triphenylphosphine and sodium di‐ n ‐butyl phosphite to establish the stru…
Polymer Nanocomposites and PropertiesEpoxy Resin Curing ProcessesSynthesis and properties of polymers
P. H. Geil1964-09-01Journal of Polymer Science Part A General Papers
Abstract The effect of molecular weight average and distribution, defect type, fold plane type and orientation, and the presence of fold domain boundaries on the deformation characteristics of polyethylene single crystals drawn on a Mylar substrate has been investigated. Defect content is suggested to have a bigger ef…
Mechanical Behavior of CompositesPolymer crystallization and propertiesPolymer Nanocomposites and Properties
Bh. V. JANAKIRAMA RAO1964-09-01Journal of the American Ceramic Society
Glasses corresponding to mole formulas R 2 TiO 3 and R 2 Ti 2 O 5 were prepared in 1‐ to 5‐g quantities by quenching in a platinum crucible. K 2 O, Rb 2 O, and Cs 2 O formed fairly stable glasses with TiO 2 . On heat treatment, these glasses nucleated readily and formed opal‐like glasses. Li 2 O and Na 2 O, however, d…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsMicrowave Dielectric Ceramics Synthesis
Frederick W. B. Einstein、B. R. Penfold1964-09-01Acta Crystallographica
A three-dimensional crystal structure analysis of a hydrated potassium peroxytungstate has served to establish the composition of the compound as KgW2011.4HeO, there being two formula units per unit cell in triclinic crystals of space group PL There are discrete tetraperoxyditungstate anions [W2011.2HeO] 2-in which th…
Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and Applications
Allen J. Bailey、W. J. Tromans1964-09-01Radiation Research
The irradiation of collagen has been shown to lead to extensive changes in its physical properties (1, 2) despite little change in the chemical composition (3). This suggests that the changes are primarily due to disorganization of the secondary structure. These changes in physical properties may be reflected in the s…
Collagen: Extraction and CharacterizationMaterial Properties and ProcessingEngineering Technology and Methodologies
H. Köhler1964-09-01Zeitschrift für anorganische und allgemeine Chemie
Abstract Durch Umsetzung von Natriumdicyanamid und Kaliumtricyanmethanid mit Salzen zweiwertiger Übergangsmetalle werden in Gegenwart von Pyridin verschiedene Typen von Komplexverbindungen (Me(C 5 H 5 N) 2 (N(CN) 2 ) 2 ), Me(C 5 H 5 N) 2 (C(CN) 3 ) 2 , Me(C 5 H 5 N) 3 (C(CN) 3 ) 2 , und Me(C 5 H 5 N) 4 (C(CN) 3 ) 2 ge…
Organometallic Complex Synthesis and CatalysisMagnetism in coordination complexesInorganic Chemistry and Materials
Eliο Passaglia、Gordon M. Martin1964-09-01Journal of Research of the National Bureau of Standards Section A Physics and Chemistry
The shear modulus and logarithmic d ecrement at app roximately 1 cis have been m easured from -180 C to about 150 C for a series of samples of isotacLic polypropylen e prepared by vario Ll s thermal treatments. Th e samples had v ar ying den sities (degrees of crystallinity) and morpholog ies as characterized by spher…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer Science and PVC
Everly B. Fleischer、Eun-Hwa Choi、Peter Hambright 等 4 位作者1964-09-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPorphyrin Studies: Kinetics of Metalloporphyrin FormationEverly B. Fleischer, E. I. Choi, Peter Hambright, and Allen StoneCite this: Inorg. Chem. 1964, 3, 9, 1284–1287Publication Date (Print):September 1, 1964Publication History Published online1 May 2002Published inissue 1…
Porphyrin and Phthalocyanine ChemistrySurface Chemistry and CatalysisPorphyrin Metabolism and Disorders
W. H. Baur1964-09-01Acta Crystallographica
FeSO 4. 71-I20 crystallizes in space group _P21/c with a = 14.072, b =6.503, c = 11.041 /~, fl = 105 34', Z =4. The crystal structure had been determined from Patterson and Fourier syntheses using
Crystal Structures and PropertiesX-ray Diffraction in Crystallography
Paul Börnstein、Karl A. Piez1964-09-01Journal of Clinical Investigation
1 The previously described 8-components (8, 11) are designated a,, for al-al and 8in for al-a2. The two al chains are assumed to be identical, since this fraction appears homogeneous. Direct evidence, however, is lacking on this point.
Skin Protection and AgingDyeing and Modifying Textile FibersCollagen: Extraction and Characterization
D. A. Smith1964-09-01Rubber Chemistry and Technology
Abstract The paper reports weight loss vs temperature data for the pyrolytic decomposition of polyethylene, Polyvinylchloride; natural, styrene-butadiene and isopreneisobutene rubbers. A nonisothermal kinetic treatment is developed, based on proposals by Doyle and by Newkirk, resulting in characterization of the pyrol…
Polymer crystallization and propertiesThermal and Kinetic AnalysisPolymer Science and PVC
J. L. Lundberg1964-09-01Journal of Polymer Science Part A General Papers
Abstract Diffusion coefficients of methane in linear polyethylene melts measured by simple sorption experiments are from 1.5 × 10 −5 to 3.6 × 10 −5 cm. 2 /sec. between 140.0 and 188.3°C. These diffusion coefficients are one‐third to one‐half those of methane in branched polyethylene melts at these temperatures. Solubi…
Polymer crystallization and propertiesPhase Equilibria and ThermodynamicsPolymer Foaming and Composites
Elmer J. Huber、George C. Fitzgibbon、Charles E. Holley1964-09-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Heat of Formation of Europium Sesquioxide1Elmer J. Huber Jr., George C. Fitzgibbon, and Charles E. Holley Jr.Cite this: J. Phys. Chem. 1964, 68, 9, 2720–2722Publication Date (Print):September 1, 1964Publication History Published online1 May 2002Published inissue 1 Septem…
Radioactive element chemistry and processingNuclear Materials and PropertiesCatalysis and Oxidation Reactions
L. J. Teutonico1964-09-01Philosophical magazine
An elastic analysis of dislocations in anisotropic media has been applied to study the interaction of dislocations on intersecting {111} planes in the face-centred cubic structure. Both long-range and short-range interactions have been considered in a series of f.c.c. elements; the stability of each configuration resu…
Microstructure and mechanical propertiesUltrasonics and Acoustic Wave PropagationThermodynamic and Structural Properties of Metals and Alloys
L. D. Calvert、C.L. Rand1964-09-01Acta Crystallographica
Silver calcium alloys were made from 99.997% silver granules, with an analysis comparable to the spectroscopic standard for silver, and calcium, distilled from high purity granules (Dominion Magnesium Ltd) with a representative analysis, after distillation, of Mg 2 ppm, Fe 0.2 ppm, Si 0.2 ppm, Sr 0.2 ppm, Ba and other…
Quasicrystal Structures and PropertiesNanocluster Synthesis and ApplicationsX-ray Diffraction in Crystallography
M. H. Leipold、T. H. Nielsen1964-09-01Journal of the American Ceramic Society
Tensile, creep, and modulus of elasticity data were determined for hot‐pressed zirconium carbide. The material was relatively impure, containing 1 to 2% nitrogen and 1 to 2% free carbon. Tension and creep properties, which were measured to 2600° C, indicated that above 2100°C the strength was 2000 psi or lower and the…
High Temperature Alloys and CreepNuclear Materials and PropertiesAdvanced materials and composites
R. Postle、P.D. Burton、M. Chaikin1964-09-01Journal of the Textile Institute Transactions
The expression for the torque in a twisted yarn is derived by summing the components of torque due to fibre tension, fibre torsion, and fibre bending. Of these three components, the sum of the last two is small compared with the torque due to fibre tension and hence the instantaneous torque L may be estimated simply b…
Mechanical Behavior of CompositesTextile materials and evaluationsMechanical Engineering and Vibrations Research
R. Salmon1964-09-01Journal of Soil Science
Summary Wyoming bentonite, Blisworth illite, and a fen peat were saturated with different proportions of calcium, magnesium, and potassium, and exchange between these cations was studied by measuring their activity ratios in dilute equilibrium solutions. With both clays the activity ratio aMg/aCa in solution was linea…
Soil and Unsaturated FlowClay minerals and soil interactionsPeatlands and Wetlands Ecology
M. Krishna Murthy、J. AGUAYO1964-09-01Journal of the American Ceramic Society
Phase equilibrium relations in the system Na 2 O‐GeO 2 have been determined using standard quenching techniques supplemented by differential thermal analysis. Two congruently melting compounds, Na 2 O·GeO 2 and 2Na 2 O·9GeO 2 , exist; the melting points are 1103°± 15°C and 1073°± 3°C, respectively. The eutectic temper…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsMicrowave Dielectric Ceramics Synthesis
N. D. Greene、G. A. Saltzman1964-09-01CORROSION
Cold work markedly decreases the corrosion resistance of steel in acid solutions. This effect has been studied by electrochemical measurements and weight loss tests on zone-refined iron and carbon steels exposed to sulfuric and hydrochloric acids. The mechanism of this phenomenon is discussed in detail.
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsConcrete Corrosion and Durability