Applications to inorganic and miscellaneous materials
1.INTRODUCTION 2.IMMERSION CALORIMETRY 3.THERMOPOROMETRY 4.SAMPLE CONTROLLED THERMAL ANALYSIS (SCTA) 5.ISOTHERMAL ADSORPTION MICROCALORIMETRY
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。
STUDY OF BATIO_3 CERAMICS DOPED WITH MN AND CE OR NB AND SR
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…
TEMPERATURE AND PRESSURE EFFECT ON THE ANISOTROPY OF DIELECTRIC PERMEABILITY IN KDP AND DKDP CRYSTALS
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…
Corrosion Inhibition of a Green Scale Inhibitor Polyepoxysuccinic Acid
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…
Effects of rare earths on friction and wear characteristics of magnesium alloy AZ91D
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…
The chemical degradation of polyurethane
A review is cited with 17 references. The radical mechanism of polyurethane degradation such as hydrolysis, thermolysis, oxidation and photolysis were introduced.
Compact Spinning: A Critical Review
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…
Effect of Hydrogen on Ultralong Life Fatigue Failure of a High Strength Steel and Fracture Morphology of ODA
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…
Q-SPECIES IN ALKALI-DISILICATE GLASSES
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…
The Effect of Co-Doping by Ca[sup 2+], Ta[sup 5+], Sn[sup 4+], and Ru[sup 4+] Ions on the X-Ray Luminescent Properties of Gd[sub 2]O[sub 2]S:Tb[sup 3+] Phosphors
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.
COMPARISON BETWEEN CONVENTIONAL AND TWO-DIMENSIONAL XRD
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…
Electro-Optical Properties of Polymer-Stabilized Ferroelectric Liquid Crystal
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…
Relaxor-Like Dielectric Relaxation: Artifacts and Intrinsic Properties
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…
Microstructure and interfacial interaction of polyimide/silica hybrid nanocomposites prepared with 3-aminopropyltriethoxysilane
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…
Statistical approach to the transient up-converted population in monodoped amorphous solids
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…
Non-linear current–voltage characteristics related to native defects in SrTiO3 and ZnO bicrystals
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…
Hydrogen Isotope Effects on Absorption Properties of Ti-Cr-V Alloys
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…
LIGAND-SENSITIZED AND UP-CONVERSION PHOTOLUMINESCENCE IN VACUUM-DEPOSITED THIN FILMS OF AN INFRARED ELECTROLUMINESCENT ORGANIC ERBIUM COMPLEX
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…
Electrocopolymerization of Indole and Thiophene: Conductivity-Peak Current Relationship and In Situ Spectroelectrochemical Investigation of Soluble Co-Oligomers
Electropolymerization of indole (IN) in the presence of thiophene (Th) was followed by in situ and ex situ spectroelectrochemical studies. A correlation between absorbance (390 nm) and charge (at 600 mV) values indicated that oligomeric species were formed in solution, and similar results were found with in situ measu…
Preparation of Silk Film and Its Plasma Treatment for Better Dyeability
Silk films were treated with O2 and NH3 plasmas for the improvement of dyeability. After O2 and NH3 plasma treatment of silk films, chemical composition of O and N on the surface increased, respectively. Also the concentration of acid and base functional groups increased. The silk films were insolubilized so that they…