Christoph Schuffenhauer、Gerhard Wildermuth、Jürgen Felsche 等 4 位作者2004-01-01Physical Chemistry Chemical Physics
Two-dimensional compounds (like graphite or MoS2) are capable of bending their layers and forming a closed cage structure, which is denoted the inorganic-fullerene-like (IF) phase in the case of inorganic materials. Simultaneous thermal analysis (TG-DTA) of a number of nanomaterials (IF-MoS2, IF-NbS2, and IF-WS2) and…
Graphene research and applicationsQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films
Qingjiang Meng、G. S. Frankel2004-01-01Surface and Interface Analysis
Abstract Chromate conversion coatings (CCCs) on AA7075‐T6 were characterized using scanning electron microscopy, focused ion beam sectioning and scanning transmission electron microscopy with nano‐electron dispersive spectroscopy line profiling. The thickness and composition of the CCC was different at different locat…
Corrosion Behavior and InhibitionAluminum Alloy Microstructure PropertiesBauxite Residue and Utilization
Prithwiraj Maitra、Stephanie L. Wunder2004-01-01Electrochemical and Solid-State Letters
A class of electrolytes based on polyethylene oxide (PEO)-functionalized polyhedral oligosilsesquioxanes or PEO(n)-POSS] and lithium salts was developed, where 4, 〈8〉, 〈12.5〉 ethylene oxide units. Conductivities (σ) of these highly branched, nonvolatile (375°C), viscous polymers were at 50°C and at room temperature (R…
Advanced Battery Materials and TechnologiesPolyoxometalates: Synthesis and ApplicationsSilicone and Siloxane Chemistry
Kazuya Otsuka、Katsuyuki Matsunaga、Atsutomo Nakamura 等 7 位作者2004-01-01MATERIALS TRANSACTIONS
Ionic conductivities of yttria-stabilized zirconia (YSZ) single crystals deformed at high-temperature were measured by the AC impedance method. A correlation between ionic conductivity and dislocation structures of deformed YSZ single crystals were investigated. Electrical conductivity measurements of the deformed YSZ…
Advancements in Solid Oxide Fuel CellsMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides
Jordan H. Wosnick、Timothy M. Swager2004-01-01Chemical Communications
A fluorescent poly(phenylene ethynylene) containing calix[4]arene-based receptor units has a sensitivity to quenching by the N-methylquinolinium ion that is over three times larger than that seen in a control polymer lacking calix[4]arenes.
Molecular Sensors and Ion DetectionSupramolecular Chemistry and ComplexesLuminescence and Fluorescent Materials
M. Femenia、Jinshan Pan、Christofer Leygraf2004-01-01Journal of The Electrochemical Society
Scanning Auger electron spectroscopy (SAES) has been used to investigate the phase boundary region between ferrite and austenite in three duplex stainless steels. Of the elements investigated Cr and Mo are partitioned to the ferrite phase, while Ni and N are partitioned to the austenite phase. The composition gradient…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsWelding Techniques and Residual Stresses
Masaki Mizouchi、Yoshihiro Yamazaki、Yoshiaki Iijima 等 4 位作者2004-01-01MATERIALS TRANSACTIONS
Grain boundary diffusivity of chromium in SUS316 and 316L stainless steels has been determined in the temperature range between 518 and 1173 K. The magnitudes of the grain boundary diffusivities in four kinds of specimens are in the order of the cold-worked SUS316, the solution-treated SUS316L, the solution-treated SU…
Microstructure and mechanical propertiesMicrostructure and Mechanical Properties of SteelsHigh Temperature Alloys and Creep
Masahiro Fujiwara、Katsunori Kojima、Yūko Tanaka 等 4 位作者2004-01-01Journal of Materials Chemistry
Nanocomposite materials of epoxy resin and silica were prepared by a simple procedure wherein diglycidyl ethers of bisphenol-A (DGEBA) as the pre-polymer of epoxy resin, tetraethoxysilane (TEOS) as silica source, and hexahydrophthalic anhydride (HHPA) were mixed together and heated at 170 °C in a sealed autoclave. HHP…
Polymer Nanocomposites and PropertiesSynthesis and properties of polymersSilicone and Siloxane Chemistry
Saeed Doroudiani、Mark T. Kortschot2004-01-01Journal of Thermoplastic Composite Materials
In this study, processing–structure–mechanical properties relationships in expanded wood fiber polystyrene composites (EPSC) made with a physical blowing agent were investigated. A systematic investigation was performed based on a statistical experimental design. The samples were saturated with carbon dioxide at high…
Natural Fiber Reinforced CompositesCellular and Composite StructuresPolymer Foaming and Composites
Masakuni Fujikura、Akio Kasama、Ryohei Tanaka 等 4 位作者2004-01-01MATERIALS TRANSACTIONS
High temperature strength and room temperature fracture toughness of Nb-based alloy system were investigated to explore a candidate material for gas turbine use at 1773 K as a function of chemical compositions. 0.2% proof stress at 1773 K and the fracture toughness were studied for the solid-solution hardening Nb-Mo-W…
Intermetallics and Advanced Alloy PropertiesAdvanced Materials Characterization TechniquesMetallurgical and Alloy Processes
Seiji Fukuyama、Lin Zhang、Kiyoshi Yokogawa2004-01-01Journal of the Japan Institute of Metals and Materials
Testing equipment for materials under high-pressure hydrogen of 70 MPa at the temperature range of room temperature up to 373 K has been developed. The pressure vessel was designed to enable the measurement of actual tensile load on a specimen by an external load cell without the influence of axial load due to high pr…
Microstructure and Mechanical Properties of SteelsFatigue and fracture mechanicsHydrogen embrittlement and corrosion behaviors in metals
Siama Basharat、Claire J. Carmalt、Simon J. King 等 5 位作者2004-01-01Dalton Transactions
The donor-functionalised alkoxides [Et(2)Ga(OR)](2)(R = CH(2)CH(2)NMe(2)(1), CH(CH(2)NMe(2))(2)(2), CH(2)CH(2)OMe (3), CH(CH(3))CH(2)NMe(2)(4), C(CH(3))(2)CH(2)OMe (5)) were synthesised by the 1:1 reaction of Et(3)Ga with ROH in hexane or dichloromethane at room temperature. Reaction of Et(3)Ga with excess ROH in refl…
Luminescence Properties of Advanced MaterialsSemiconductor materials and devicesGa2O3 and related materials
Alain Hédoux、Yannick Guinet、Patrick Derollez 等 6 位作者2004-01-01Physical Chemistry Chemical Physics
Triphenyl phosphite (TPP) is now well known to exhibit an intriguing transformation of the supercooled liquid. The transformation was firstly interpreted as a first-order polyamorphic transition between the supercooled liquid and an apparently amorphous state different from the glass and the ordinary liquid, the so-ca…
Liquid Crystal Research AdvancementsPolymer crystallization and propertiesMaterial Dynamics and Properties
Christine S. Love、Victor Chechik、David K. Smith 等 4 位作者2004-01-01Journal of Materials Chemistry
L-Lysine based dendrimers containing a disulfide moiety at the core were synthesized. These novel ligands were used to stabilize Au nanoparticles via a one-phase chemical reduction method. The size of the resultant nanoparticles was found to decrease with increasing dendritic generation. Furthermore, the thermal stabi…
Gold and Silver Nanoparticles Synthesis and ApplicationsDendrimers and Hyperbranched PolymersNanocluster Synthesis and Applications
Isabelle Lavoie、Warwick F. Vincent、Reinhard Pienitz 等 4 位作者2004-01-01Aquatic Ecosystem Health & Management
The objective of this study was to evaluate the effect of agricultural pollution on periphyton in streams and rivers of southern Québec. We sampled benthic algae incubated from mid-July to mid-August on artificial substrates at 29 sites and analysed the variations in community structure and total community biomass. Di…
Freshwater macroinvertebrate diversity and ecologySoil and Water Nutrient DynamicsDiatoms and Algae Research
W.W. Milligan、E.L. Orth、J.J. Schirra 等 4 位作者2004-01-01OpenAlex
An experimental program was conducted in order to determine the effects of microstructure on the high temperature constitutive behavior or powder-processed IN100. The relevant application is the high pressure turbine disk in a gas turbine engine. Eight different microstructures were prepared, with 260 o C yield streng…
High Temperature Alloys and CreepMetallurgy and Material FormingHigh-Velocity Impact and Material Behavior
Ya. I. Alivov、М. В. Чукичев、В. А. Никитенко2004-01-01Semiconductors
High quality ZnO single-crystal films were doped with copper by thermal diffusion, and their luminescent properties were studied by cathodoluminescence spectroscopy. Doping with copper increases the intensity of the green-emission band of the cathodoluminescence spectrum, whose peak, width, and shape at 78 and 300 K r…
ZnO doping and propertiesCopper-based nanomaterials and applicationsGa2O3 and related materials
Hanako Nishino、Hiroshi Yamamura、Takahiko Arai 等 5 位作者2004-01-01Journal of the Ceramic Society of Japan
The oxide-ion conductivity of two solid-solution systems of a pyrochlore-type composition, (Y1-xLax)2(Ce1-xZrx)2O7 (YLa) and (Nd1-xYbx)2(Ce1-xZrx)2O7 (NdYb), was investigated. The crystal phase of the YLa system with a variable cation radius ratio, r(A3+)/r(B4+), but a constant lattice parameter, changed from the rare…
Nuclear Materials and PropertiesAdvanced Condensed Matter PhysicsNuclear materials and radiation effects
C.-O.A. Olsson、M.-G. Vergé、D. Landolt2004-01-01Journal of The Electrochemical Society
A comparative study of anodic film growth on niobium, zirconium, and tungsten in 0.4 M Na 2 SO 4 + 0.1 M H 2 SO 4 was performed using the rotating electrochemical quartz crystal microbalance (EQCM). Potential sweep as well as potential step and hold experiments were performed in the range between open circuit and 8 V…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsAnodic Oxide Films and Nanostructures
Tsuyohito Ito、Ken Katahira、Yoshiki Shimizu 等 6 位作者2004-01-01Journal of Materials Chemistry
This first report on applications of discharges (or discharge plasma) in a supercritical carbon dioxide environment describes simple generation of nanostructured materials such as carbon nanotubes, nanopolyhedra, and copper nanostructured materials. Carbon nanostructured materials are synthesized by supercritical carb…
Carbon Nanotubes in CompositesDiamond and Carbon-based Materials ResearchFullerene Chemistry and Applications