A. K. Alva1993-05-01Communications in Soil Science and Plant Analysis
Extractants employed for routine soil analysis vary from one laboratory to another. Lack of a universal soil extractant is a serious limitation for interpretation of analytical results from various laboratories on nutritional status of a given soil. This limitation can be overcome by developing functional relationship…
Soil and Water Nutrient DynamicsClay minerals and soil interactionsIron oxide chemistry and applications
M. Ocampo、Arturo Fernández、P.J. Sebastián1993-05-01Semiconductor Science and Technology
The formation of transparent conducting CdO films by chemical bath deposition is reported for the first time. These films exhibit an optical transmittance and electrical conductivity much higher than those CdO films prepared by other physical vapour deposition techniques. They exhibit an optical transmittance of more…
ZnO doping and propertiesGas Sensing Nanomaterials and SensorsCopper-based nanomaterials and applications
Brian Sullivan、J. A. Dobrowolski1993-05-01Applied Optics
A fully automated magnetron-sputtering system for the deposition of complicated optical multilayer structures is described. The process control includes the real-time determination of the deposited layer thicknesses and adjustment of the remaining layer thicknesses to reoptimize the final performance of the multilayer…
Semiconductor Lasers and Optical DevicesOptical Coatings and GratingsSurface Roughness and Optical Measurements
Horng-Yih Liou、R-I. Shieh、F-I. Wei 等 4 位作者1993-05-01CORROSION
The effects of alloying elements such as niobium, copper, chromium, molybdenum, and titanium in high-strength, low-alloy (HSLA) steels on hydrogen induced cracking (HIC) were investigated. The HIC test was performed to NACE TM-02-84 in BP (saturated H2S synthetic sea water) and NACE solutions. The test data were analy…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsMaterial Properties and Failure Mechanisms
L. W. Barrett、L. H. Sperling、Charles J. Murphy1993-05-01Journal of the American Oil Chemists Society
The use of naturally functionalized triglyceride oils in interpenetrating polymer networks (IPNs) is reviewed. An oil bearing either hydroxyl or epoxide functionality may be crosslinked to form a soft elastomer in the presence of another monomer or network to form an IPN, or in the presence of a linear polymer, to for…
Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesPolymer composites and self-healing
M A Howe、R L McGreevy、László Pusztai 等 4 位作者1993-05-01Physics and Chemistry of Liquids
The structures of 51 elemental liquids have been modelled from experimental diffraction data using the reverse Monte Carlo method. The structural trends across the periodic table are described in terms of three-body correlations and discussed in terms of the relative importance of two-body and many-body forces.
Material Dynamics and PropertiesSolid-state spectroscopy and crystallographyX-ray Diffraction in Crystallography
Christopher R. Myers、James P. Sethna1993-05-01Physical review. B, Condensed matter
The dynamics and critical phenomena of the depinning transition in charge-density-wave (CDW) systems are explored, primarily through simulations of an automaton model that we have developed to characterize the essential features of the standard Fukuyama-Lee-Rice (FLR) treatment of CDW's. We first provide an overview o…
Physics of Superconductivity and MagnetismNonlinear Dynamics and Pattern FormationOrganic and Molecular Conductors Research
Sadayuki Takahashi Hirose1993-05-01Japanese Journal of Applied Physics
Vibration-level characteristics for Fe-doped lead-zirconate-titanate ceramic were studied using the constant current driving method. It was found that mechanical Q was markedly decreased with increasing vibration level, accompanying a lot of heat generation. The other electromechanical characteristics were slightly ch…
Ferroelectric and Piezoelectric MaterialsAcoustic Wave Resonator TechnologiesDielectric materials and actuators
Narottam P. Bansal、Charles H. Drummond1993-05-01Journal of the American Ceramic Society
The kinetics of hexacelsian‐to‐celsian phase transformation in SrAl 2 Si 2 O 8 have been investigated. Phase‐pure hexacelsian was prepared by heat treatment of glass flakes at 990°C for 10 h. Hexacelsian flakes were isothermally heat‐treated at 1026°, 1050°, 1100°, 1152°, and 1200°C for various times. The amounts of m…
Luminescence Properties of Advanced MaterialsAdvanced ceramic materials synthesisGlass properties and applications
Savvas G. Hatzikiriakos1993-05-01International Polymer Processing
Abstract Eyring's theory of liquid viscosity was adapted to the special case of polymer molecules at a solid interface. The resulting model gives the slip velocity as a function of wall shear stress, temperature, pressure, work of adhesion and the molecular parameters of the polymer. The work of adhesion is related, o…
High voltage insulation and dielectric phenomenaRheology and Fluid Dynamics Studies
K. L. Ngai、C. M. Roland1993-05-01Macromolecules
ABSTRACT The effect of the presence of a crystalline phase on the temperature dependence of segmental relaxation is examined. For both an aromatic and an aliphatic polyester, for polypropylene, and for poly-(dimethylsiloxane) (PDMS), it is demonstrated that crystallinity has an insignificant effect on the temperature…
Polymer crystallization and propertiesMaterial Dynamics and PropertiesPhotochemistry and Electron Transfer Studies
Joseph Katz、Michael R. Reick、Ruth E. Herzog 等 4 位作者1993-05-01Langmuir
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCalcite growth inhibition by ironJoseph L. Katz, Michael R. Reick, Ruth E. Herzog, and Katrin I. ParsieglaCite this: Langmuir 1993, 9, 5, 1423–1430Publication Date (Print):May 1, 1993Publication History Published online1 May 2002Published inissue 1 May 1993https://pubs.acs.o…
Calcium Carbonate Crystallization and Inhibition
S. Magaino、M. Matlosz、D. Landolt1993-05-01Journal of The Electrochemical Society
Electrochemical impedance diagrams have been measured under controlled mass‐transport conditions for the transpassive anodic dissolution of , a stainless‐steel type alloy, in concentrated phosphoric‐sulfuric acid electrolytes under both polishing and nonpolishing conditions. The impedance diagrams consist of four part…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsConcrete Corrosion and Durability
Prabhat K. Gupta1993-05-01Journal of the American Ceramic Society
Following the ideas of Zachariasen and of Cooper, it is argued that the glass‐forming ability of a system can be rationalized in terms of the degrees of freedom available to form an infinitely large topologically disordered network composed of rigid structural units connected at vertices, edges, or faces. Expressions…
Material Dynamics and PropertiesGlass properties and applicationsPhase-change materials and chalcogenides
Thomas G. Kotch、Alistair J. Lees、Stephen J. Fuerniss 等 5 位作者1993-05-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLuminescence rigidochromism of fac-tricarbonylchloro(4,7-diphenyl-1,10-phenanthroline)rhenium as a spectroscopic probe in monitoring polymerization of photosensitive thin filmsThomas G. Kotch, Alistair J. Lees, Stephen J. Fuerniss, Kostas I. Papathomas, and Randy W. SnyderCi…
Conducting polymers and applicationsLuminescence and Fluorescent MaterialsPhotopolymerization techniques and applications
Show An Chen、Chien Shiun Liao1993-05-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConductivity relaxation and chain motions in conjugated conducting polymers: neutral poly(3-alkylthiophenes)Show An Chen and Chien Shiun LiaoCite this: Macromolecules 1993, 26, 11, 2810–2816Publication Date (Print):May 1, 1993Publication History Published online1 May 2002Pub…
Organic Electronics and PhotovoltaicsFuel Cells and Related MaterialsConducting polymers and applications
Albert Lichanot、Edoardo Aprà、Roberto Dovesi1993-05-01physica status solidi (b)
Abstract The binding energy and elastic constants of Li 2 S and Na 2 S are investigated at an initio all electron Hartree‐Fock level. The comparison between calculated and experimental value leads to satisfactory agreement for Li 2 S and a substantial difference in the Na 2 S case. The comparative evolution of the ela…
Advanced Chemical Physics StudiesMachine Learning in Materials ScienceHeusler alloys: electronic and magnetic properties
Renyuan Qian、Liheng Wu、Deyan Shen 等 6 位作者1993-05-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSingle-chain polystyrene glassesRenyuan Qian, Liheng Wu, Deyan Shen, Donald H. Napper, Richard A. Mann, and David F. SangsterCite this: Macromolecules 1993, 26, 11, 2950–2953Publication Date (Print):May 1, 1993Publication History Published online1 May 2002Published inissue 1…
Glass properties and applicationsPhotochemistry and Electron Transfer StudiesAdsorption, diffusion, and thermodynamic properties of materials
Issac Chuang、Bernard Yurke、A. N. Pargellis 等 4 位作者1993-05-01Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
We study the coarsening dynamics of defects in the uniaxial nematic liquid crystal 4-cyano-4'-n-pentylbiphenyl, subjected to a rapid pressure jump from the isotropic to the nematic phase. The defect tangle formed at the phase transition is dominated by type-1/2 strings (disclination lines), but also contains type-1 st…
Liquid Crystal Research AdvancementsTheoretical and Computational PhysicsNonlinear Dynamics and Pattern Formation
Ingrid J. Pickering、Graham N. George、J. T. Lewandowski 等 4 位作者1993-05-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNickel K-edge x-ray absorption fine structure of lithium nickel oxidesIngrid J. Pickering, Graham N. George, Joseph T. Lewandowski, and Allan J. JacobsonCite this: J. Am. Chem. Soc. 1993, 115, 10, 4137–4144Publication Date (Print):May 1, 1993Publication History Published onl…
Advancements in Battery MaterialsElectron and X-Ray Spectroscopy TechniquesSurface and Thin Film Phenomena