Materials Literature

文献浏览

按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。

清除
第 128352 / 129735 页 · 当前展示 2,567,021–2,567,040 / 2,594,699 条匹配结果 · 摘要仅作预览

Structure of a very small piece of silver metal. The octahedral silver (Ag6) molecule. Two crystal structures of partially decomposed vacuum-dehydrated fully silver(1+) ion-exchanged zeolite A

Yang Kim、K. Seff1977-10-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure of a very small piece of silver metal. The octahedral silver (Ag6) molecule. Two crystal structures of partially decomposed vacuum-dehydrated fully silver(1+) ion-exchanged zeolite AYang Kim and Karl SeffCite this: J. Am. Chem. Soc. 1977, 99, 21, 7055–7057Publicati…

Zeolite Catalysis and SynthesisMesoporous Materials and CatalysisNanomaterials for catalytic reactions

Impression creep of LiF single crystals

Edward C. Yu、J. C. M. Li1977-10-01Philosophical magazine

Impression creep tests of LiF single crystals at 600–750[ddot]C and under punching stresses of 4-30 MN/m2 are reported. Both temperature and stress dependences are comparable with those of conventional compression creep tests under similar conditions. These dependences give a power law stress exponent of 4–5 and an ac…

Advanced ceramic materials synthesisSilicon Carbide Semiconductor TechnologiesSemiconductor materials and interfaces

A high-pressure x-ray study of Nylon 11

B. A. Newman、T. P. Sham、K. D. Pae1977-10-01Journal of Applied Physics

An x-ray diffraction study of Nylon 11 was carried out at high pressures and high temperatures. Careful measurements made on both wet and dry samples at atmospheric pressure indicated that the structure of Nylon 11 suggested by Slichter was not quite correct. Some distortion of the planar conformation causes a shorten…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesFiber-reinforced polymer composites

Homoenolate anion precursor. Reaction of ester homoenol silyl ether with carbonyl compounds

Eiichi Nakamura、Isao Kuwajima1977-10-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHomoenolate anion precursor. Reaction of ester homoenol silyl ether with carbonyl compoundsEiichi Nakamura and Isao KuwajimaCite this: J. Am. Chem. Soc. 1977, 99, 22, 7360–7362Publication Date (Print):October 1, 1977Publication History Published online1 May 2002Published ini…

Polyoxometalates: Synthesis and ApplicationsChemical Synthesis and ReactionsChemical Synthesis and Characterization

Antisymmetric and anisotropic exchange in ferromagnetic copper(II) layers

Z. G. Soos、Kenneth T. McGregor、T. T. P. Cheung 等 4 位作者1977-10-01Physical review. B, Solid state

The theory of exchange narrowing is extended in systems with large isotropic ${J}_{0}$ to include static spin correlations and antisymmetric exchange. Both contribute to the unusual temperature-dependent, exchange-narrowed EPR linewidth $\ensuremath{\Delta}H(T)$ in $\mathrm{Cu}X_{4}^{}{}_{}{}^{2\ensuremath{-}} (X=\mat…

Magnetic properties of thin filmsMagnetism in coordination complexesElectron Spin Resonance Studies

Multiphonon relaxation of rare-earth ions in beryllium-fluoride glass

Clyde B. Layne、William J. Weber1977-10-01Physical review. B, Solid state

Relaxation of excited electronic states of rare-earth ions by multiphonon emission was investigated in a beryllium-fluoride glass. Decay rates were measured from the transient fluorescence following pulsed laser excitation of selected states. The multiphonon emission rates exhibit an approximately exponential dependen…

Luminescence Properties of Advanced MaterialsGlass properties and applicationsQuantum optics and atomic interactions

Location and properties of glucose dehydrogenase in sporulating cells and spores of Bacillus subtilis

Yuki Fujita、Robert F. Ramaley、Ernst Freese1977-10-01Journal of Bacteriology

Late during sporulation, Bacillus subtilis produces glucose dehydrogenase (GlcDH; EC 1.1.1.47), which can react with D-glucose or 2-deoxy-D-glucose and can use nicotinamide adenine dinucleotide (NAD) or nicotinamide adenine dinucleotide phosphate (NADP) as a cofactor. This enzyme is found mainly in the forespore compa…

Enzyme Structure and FunctionPolyamine Metabolism and ApplicationsAmino Acid Enzymes and Metabolism

Stress whitening and yielding mechanism of rubber-modified PVC

H. Breuer、Franz Haaf、J. Stabenow1977-10-01Journal of Macromolecular Science Part B

Structure-property relationships were investigated for blends of grafted rubbery polymers with PVC. Increasing grafting levels as well as higher blending temperatures improved the dispersion of the graft copolymers in PVC, lowered the impact strength, and reduced stress whitening. Presuming a mechanistic connection be…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer Science and PVC

CO2 product velocity distributions for CO oxidation on platinum

Charles A. Becker、James P. Cowin、Lennard Wharton 等 4 位作者1977-10-01The Journal of Chemical Physics

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 Charles A. Becker, James P. Cowin, Lennard Wharton, Daniel J. Auerbach; CO2 product velocity dist…

Catalytic Processes in Materials SciencePhase Equilibria and ThermodynamicsCatalysis and Oxidation Reactions

Lattice imaging of a grain boundary in crystalline germanium

Ondrej L. Krivanek、S. Isoda、Kensuke Kobayashi1977-10-01Philosophical magazine

A high-angle tilt grain boundary viewed end-on in a (011) thin crystal of Ge has been imaged with atomic resolution in the Kyoto 500 kV electron microscope. The boundary is shown to consist of alternating columns of five- and seven-membered rings of Ge atoms running along the [011] direction, and to contain no danglin…

Advancements in Photolithography TechniquesElectron and X-Ray Spectroscopy TechniquesIntegrated Circuits and Semiconductor Failure Analysis

NaBeAs(Sb) – Ternäre Phasen im „aufgefüllten“ NiAs(Ni2In)-Typ / NaBeAs(Sb) – Ternary Phases in a „Filled“ NiAs(Ni2In)-Structure

Christoph Tiburtius、H.-P. Schuster1977-10-01Zeitschrift für Naturforschung B

NaBeAs and NaBeSb crystallize in a modified Ni 2 In-type-structure, space group P 6 3 /mmc–D 6h 4 . Preparation and structure determination with powder and single crystal data are described. The bonds and the structure are discussed in comparison with corresponding compounds of the formula AMe II X. The lattice consta…

Rare-earth and actinide compoundsIron-based superconductors researchInorganic Chemistry and Materials

Stabilization of high oxidation states by strong electron-donating ligands. Crystal structure and properties of tetra-n-butylammonium o-phenylenebis(biuretato)cuprate(III)-chloroform, (n-C4H9)4NCu[o-C6H4(NCONHCONH)2].CHCl3

P. J. M. W. L. BIRKER1977-10-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStabilization of high oxidation states by strong electron-donating ligands. Crystal structure and properties of tetra-n-butylammonium o-phenylenebis(biuretato)cuprate(III)-chloroform, (n-C4H9)4NCu[o-C6H4(NCONHCONH)2].CHCl3Paul J. M. W. L. BirkerCite this: Inorg. Chem. 1977,…

Metal complexes synthesis and propertiesMagnetism in coordination complexesLanthanide and Transition Metal Complexes

Dislocation damping and hydrogen pinning in austenitic stainless steels

Andrej Atrens、N. F. Fiore、K. Miura1977-10-01Journal of Applied Physics

The room-temperature damping of three Fe-18Cr-Ni alloys was determined as a function of vibrational strain amplitude at 80 kHz. The data are consistent with the Granato-Lücke theory of dislocation damping. Values of Lc (distance between minor pins) measured are consistent with those obtained from a thermodynamic analy…

Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsMaterial Properties and Failure Mechanisms

Magnetic properties of oxygen-bridged binuclear chromium(III) complexes with 2,2'-bipyridine and 1,10-phenanthroline

Jens Josephsen、Erik B. Pedersen1977-10-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetic properties of oxygen-bridged binuclear chromium(III) complexes with 2,2'-bipyridine and 1,10-phenanthrolineJens. Josephsen and Erik. PedersenCite this: Inorg. Chem. 1977, 16, 10, 2534–2538Publication Date (Print):October 1, 1977Publication History Published online1…

Metal-Organic Frameworks: Synthesis and ApplicationsMetal complexes synthesis and propertiesMagnetism in coordination complexes

Ballistics of Transversely Impacted Fibers

David Roylance1977-10-01Textile Research Journal

The rate-independent theory of transverse impact of textile fibers is reviewed and cast in a form that provides convenient preliminary guidance to designers of impact-resistant textile structures. It is shown that energy-absorption rate increases monotonically with fiber modulus, but that decreased ductility at high m…

Mechanical Behavior of CompositesPolymer crystallization and propertiesTextile materials and evaluations

The physical metallurgy of superalloys and titanium alloys

C. Hammond、Jack Nutting1977-10-01Metal Science

The microstructures which may be obtained in superalloys and titanium alloys as a function of alloy chemistry and heat treatment and the contributions of the various phases to tensile, creep, fatigue, and fracture strength are described. The ways in which thermomechanical forming processes can affect the microstructur…

High Temperature Alloys and CreepIntermetallics and Advanced Alloy PropertiesTitanium Alloys Microstructure and Properties

Scan Electron Micrographs of Kaolins Collected from Diverse Environments of Origin—IV. Georgia Kaolin and Kaolinizing Source Rocks

Walter Keller1977-10-01Clays and Clay Minerals

Abstract Scan electron micrographs (SEMs), are shown of three representative types of Georgia kaolin: ‘soft’, Cretaceous-age clay; ‘hard’, fine-grained clay; and ‘flint kaolin’. Sparta Granite and a thick deposit of its overlying saprolite are taken to serve as examples of probable source rock for Georgia kaolin. SEMs…

Soil and Unsaturated FlowClay minerals and soil interactionsGeochemistry and Geologic Mapping

Textile Yarns: Technology, Structure and Applications

Bhuvenesh C. Goswami1977-10-01Medical Entomology and Zoology

This material, designed as a textbook, is intended for scientists, engineers, and students of textile technology. Chapters: classification of yarns; raw materials; yarn structure; yarn specifications; Mist in yarns; mechanical properties of yarns; uniformity characteristics of yarns; yarns structure in relation to the…

Textile materials and evaluations

Food webs and the dimensionality of trophic niche space

Joel E. Cohen1977-10-01Proceedings of the National Academy of Sciences

If the trophic niche of a kind of organism is a connected region in niche space, then it is possible for trophic niche overlaps to be described in a one-dimensional niche space if and only if the trophic niche overlap graph is an interval graph. An analysis of 30 food webs, using the combinatorial theory of interval g…

Marine and coastal plant biologyDiatoms and Algae ResearchBiocrusts and Microbial Ecology

Criterion for craze nucleation in polycarbonate

Masaru Ishikawa、Ikuo Narisawa、Hiroyuki Ogawa1977-10-01Journal of Polymer Science Polymer Physics Edition

Abstract Plastic deformation and crazes were initiated in polycarbonate bars containing a round notch by three‐point bending. Morphological observations revealed that internal crazes are nucleated by a hydrostatic stress component caused by plastic constraint ahead of the fully developed plastic deformation zone. The…

Polymer crystallization and propertiesComposite Material MechanicsMaterial Properties and Processing