Toshio NAKATANI、Takahiro Wakita、Rikuo OTA 等 5 位作者2003-01-01Journal of the Ceramic Society of Japan
Powders in the CeO2-ZrO2-MOx system were prepared by coprecipitation method. Influence of adding a third components MOx of transition metal oxides and rare earth metal oxides on the specific surface area (SA) and oxygen storage capacity (OSC) were investigated. It was found that transition metal oxides decrease drasti…
Catalytic Processes in Materials ScienceCatalysis and Oxidation ReactionsThermal and Kinetic Analysis
Djalma Medeiros、D.S. dos Santos、Tereza Neuma de Castro Dantas 等 6 位作者2003-01-01LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas)
Polyaniline (PAni) has been classified as an intractable polymer, particularly in its conducting form, the emeraldine salt (ES). Therefore one can consider the mixture of water and PAni as a suspension. The conducting form of PAni can be obtained by a doping process known as acid doping, in which a strong acid turns P…
Conducting polymers and applicationsSynthesis and properties of polymers
Michael E. Brown、P.K. Gallagher2003-01-01Medical Entomology and Zoology
1.INTRODUCTION 2.IMMERSION CALORIMETRY 3.THERMOPOROMETRY 4.SAMPLE CONTROLLED THERMAL ANALYSIS (SCTA) 5.ISOTHERMAL ADSORPTION MICROCALORIMETRY
Thermal and Kinetic Analysis
Slipenyuk、Glinchuk、Быков 等 8 位作者2003-01-01Condensed Matter Physics
ESR study of BaTiO 3 ferroelectrics doped with cerium or with niobium and strontium, both types of samples being doped with manganese, was performed at room temperature. In the samples of the first type the most intensive line with g-factor 1.9612 was shown to originate from paramagnetic center Ti 3+ -Ce 3+ . The smal…
Acoustic Wave Resonator TechnologiesSolid-state spectroscopy and crystallographyAdvanced Physical and Chemical Molecular Interactions
Kedyulich、Slivka、Gerzanich 等 5 位作者2003-01-01Condensed Matter Physics
Temperature dependences of longitudinal and transverse dielectric permeability of KDP and DKDP crystals are studied at different values of hydrostatic pressure in order to determine the pressure behaviour of the isotropic point for these crystals. The isotropic point temperature in KDP crystals at atmospheric pressure…
Inorganic and Organometallic ChemistrySolid-state spectroscopy and crystallography
Wei Beijing2003-01-01中国化学快报：英文版
The corrosion inhibition of a green scale inhibitor, polyepoxysuccinic acid (PESA) was studied based on dynamic tests. It is found that when PESA is used alone, it had good corrosion inhibition. So, PESA should be included in the category of corrosion inhibitors. It is not only a kind of green scale inhibitor, but als…
biodegradable polymer synthesis and propertiesPolymer composites and self-healingSynthesis and properties of polymers
Yang Xiao-hong2003-01-01OpenAlex
The influence of various rare-earth contents on the friction and wear characteristics of magnesium alloy AZ91D was studied. The results show that the wear resistance properties of rare-earth magnesium alloys are better than those of the matrix alloy under the testing conditions. Magnesium alloys undergo transition fro…
Magnesium Alloys: Properties and ApplicationsAluminum Alloys Composites PropertiesMetallurgy and Material Science
Liangbing Liu2003-01-01China Elastomerics
A review is cited with 17 references. The radical mechanism of polyurethane degradation such as hydrolysis, thermolysis, oxidation and photolysis were introduced.
Polymer composites and self-healing
Akshay Kumar、S. M. Ishtiaque、K R Salhotra2003-01-01OpenAlex
Compact spinning is a novel concept generated through re-engineering of established ring spinning process by attaching a pneumatic zone to existing ring spinning machine. Compact spinning achieves a remarkable improvement in yarn quality and yarn structure through better utilization of fibre properties. The advantageo…
Textile materials and evaluations
Tohru Ueda、Yukitaka MURAKAMI2003-01-01TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
ODA (Optically Dark Area) in the vicinity of inclusions at fracture origin has a crucial importance in the mechanism of ultralong life fatigue failure. From the authors' previous studies, it has been presumed that ODA is formed by the fatigue due to cyclic stress coupled with hydrogen which is trapped by the inclusion…
Metal and Thin Film MechanicsHydrogen embrittlement and corrosion behaviors in metalsNon-Destructive Testing Techniques
Czech Republic2003-01-01OpenAlex
Glasses of composition M2O•2SiO2 (M = Li, Na, K, Rb and Cs) were obtained by means of molecular dynamics simulation. The structures of these glasses were analyzed with help of Q-species distribution. The influence of alkali oxide on a decay of Q-species is monitored according to the equation 2Q n ↔ Q n-1 + Q n+1 . Equ…
Zeolite Catalysis and SynthesisGlass properties and applicationsSolid-state spectroscopy and crystallography
R. Morlotti、C. Magro、A. Vedda 等 6 位作者2003-01-01Journal of The Electrochemical Society
The Effect of Co-Doping by Ca2 + , Ta5 + , Sn4 + , and Ru4 + Ions on the X-Ray Luminescent Properties of Gd2 O 2 S : Tb3 + Phosphors , Morlotti, R., Magro, C., Vedda, A., Martini, M., Croci, S., Nikl, M.
Luminescence Properties of Advanced MaterialsNuclear materials and radiation effectsX-ray Diffraction in Crystallography
Bob B. He、U. Preckwinkel、Kingsley L. Smith2003-01-01OpenAlex
A comparison between the conventional Bragg-Brentano diffractometer and the two-dimensional (2D) diffractometer is made in terms of diffraction geometry, diffraction pattern, and various applications. A two-dimensional XRD system for combinatorial screening in transmission mode is introduced. IINTRODUCTION A two-dimen…
X-ray Diffraction in Crystallography
S. Suresh、Ling‐Chu Chien2003-01-01Ferroelectrics
We report electro-optical studies of polymer-stabilized ferroelectric liquid crystals (PSFLCs). PSFLCs are made by photopolymerizing 3% reactive mesogenic monomer using the quasi bookshelf texture of a FLC as a template. We observe the formation of nano-scaled polymer fibrils templated by the two dimensionally ordered…
Liquid Crystal Research AdvancementsSurfactants and Colloidal SystemsOcular Surface and Contact Lens
A. I. Baranov2003-01-01Ferroelectrics
The existing results on the relaxor-like dielectric behavior which is characterized by a broad maximum in a dielectric permittivity as a function of temperature and the low frequency dielectric dispersion are reviewed for different ferroelectric and non-ferroelectric materials. The general and distinctive features of…
Ferroelectric and Piezoelectric MaterialsGlass properties and applicationsSolid-state spectroscopy and crystallography
M. A. Wahab、Chang‐Sik Ha2003-01-01Composite Interfaces
A series of polyimide (PI)-silica hybrid nanocomposites are prepared from 3,3′,4,4′biphenyltetracarboxylic dianhydride (BPDA)-4,4′-oxydianiline (ODA) polyamic acid (PAA) and tetraethoxysilane(TEOS) or tetramethoxysilane (TMOS) by the sol-gel process. 3-Aminopropyltriethoxysilane (3-APS) is used to enhance the interfac…
Polymer Nanocomposites and PropertiesSynthesis and properties of polymersSilicone and Siloxane Chemistry
C. Z. Hadad、S. Vásquez2003-01-01Physical Chemistry Chemical Physics
Based on microscopic considerations, an analytic statistical model is presented for the study of the temporal variation of up-conversion luminescence produced by the interaction of excited state Ln3+ optical centers in monodoped amorphous materials. The resulting expressions are presented in terms of known mathematica…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsRandom lasers and scattering media
Yukio Sato、Tomohito Tanaka、Fumiyasu Oba 等 6 位作者2003-01-01Science and Technology of Advanced Materials
SrTiO3 and ZnO bicrystals with various types of boundaries were fabricated in order to examine their current—voltage characteristics across single grain boundaries. Their grain boundary structures were also investigated by high-resolution transmission electron microscopy. In Nb-doped SrTiO3, electron transport behavio…
ZnO doping and propertiesSemiconductor materials and devicesElectronic and Structural Properties of Oxides
Takuya Tamura、Atsunori Kamegawa、Hitoshi Takamura 等 4 位作者2003-01-01MATERIALS TRANSACTIONS
Ti–Cr–V alloys are known to absorb protium (hydrogen atom) up to H/M = 2, while Cr-rich alloys absorb up to H/M = 1 because of the formation of mono-protides (mono-hydrides). However, few hydrogen isotope effects of the Ti–Cr–V alloys have been reported. This paper aims to clarify the hydrogen isotope effects on the a…
Fusion materials and technologiesHydrogen Storage and MaterialsNuclear Materials and Properties
H. Suzuki、Yoshiki Nishida、Satoshi Hoshino2003-01-01Molecular Crystals and Liquid Crystals
We observed ligand-sensitized and up-conversion photoluminescence (PL) in vacuum-deposited thin films of an infrared electroluminescent organic erbium complex, erbium (III) tris(8-hydroxyquinoline) (ErQ). The PL intensity at 1.55 µm was increased by three orders of magnitude by changing the photo-excited species from…
Lanthanide and Transition Metal Complexes