Materials Literature
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。
Structures of <111> low-angle tilt grain boundaries in yttria-stabilized cubic zirconia bicrystals were characterized by conventional transmission electron microscopy, high-resolution transmission electron microscopy and high-angle annular dark-field scanning transmission electron microscopy. It is found that the 0.4…
I review our recent studies of chemical reactions on single-crystalline Cu and Si surfaces induced by hyperthermal oxygen molecular beams and by oriented molecular beams, respectively. Studies of oxide formation on Cu induced by hyperthermal molecular beams suggest that the translational energy of the incident molecul…
High toughness recycled poly(ethylene terephthalate) (R-PET)/poly(ethylene-octene) (POE) blends were prepa scanning electron microscopy red by adding glycidyl methacrylate grafted poly(ethylene-octene) (mPOE) as reactive compatibilizer. Evidence for reaction between the carboxyl or hydroxyl end groups of R-PET and the…
The phase diagrams of four binary mixtures of chemically similar smectogenic mesogens differing only in molecular length are investigated. In these bidisperse systems the length ratio varies systematically. The phase diagrams show the stabilization of the smectic A and the destabilization of the smectic C phase with i…
Abstract Laminated Ti 3 SiC 2 crystals are prepared of Ti, Si, C and Al powders by the method of hot isostatic pressing with NaCl additive in argon at 1350 °C. The laminated morphology of Ti 3 SiC 2 is presented through the SEM and TEM observations. The results of high resolution transmission electron microscope (HRTE…
Abstract The phase‐separation behavior of high‐density polyethylene (HDPE)/diluent blends was monitored with a torque variation method (TVM). The torque variation of the molten blends was recorded with a rheometer. It was verified that TVM is an efficient way to detect the thermal phase behavior of a polymer–diluent s…
A procedure for vertically aligned carbon nanotube (VA-CNT) production has been developed through liquid-phase deposition of alumoxanes (aluminum oxide hydroxides, boehmite) as a catalyst support. Through a simple spin-coating of alumoxane nanoparticles, uniform centimer-square thin film surfaces were coated and used…
Microstructures of TiO(2)-doped alpha-Al(2)O(3) ceramics used as electrostatic chucks (ESC) were investigated by transmission electron microscopy including energy-dispersive spectrometry (EDS) and electron energy loss spectroscopy (EELS) analyses in connection with their electrical properties. The lattice parameters o…
Several simple experimental setups for the observation of Raman scattering in liquids and gases are described. Typically these setups do not involve more than a small (portable) CCD-based spectrometer (without scanning), two lenses, and a portable laser. A few extensions include an inexpensive beam-splitter and a colo…
Poly (butylene terephthalate) (PBT) nanofiber mats were prepared by electrospinning, being directly deposited in the form of a random fibers web. The effect of changing processing parameters such as solution concentration and electrospinning voltage on the morphology of the electrospun PBT nanofibers was investigated…
We have measured the current-voltage $(I\text{\ensuremath{-}}V)$ characteristics, dielectric properties, and magnetoresistances of insulating layered organic crystals $\ensuremath{\theta}\text{\ensuremath{-}}{(\text{BEDT-TTF})}_{2}M\text{Zn}{(\text{SCN})}_{4}$ $(M=\text{Cs},\text{Rb})$, in which electron-electron Coul…
The magnetoelectric and toroidic effects occurring in ${\text{NaFeSi}}_{2}{\text{O}}_{6}$ are analyzed theoretically. The symmetry-breaking mechanism giving rise to the incommensurate antiferromagnetic-ferroelectric phase observed below 6 K is shown to be induced by replication of a single transition order parameter.…
We study how compressive and tensile strains affect a magnetic phase transition in electron-doped ${\text{CaMnO}}_{3}$ using density-functional theory calculation. In this system, distortion of oxygen octahedrons around Mn atoms and slight occupancy of ${e}_{g}$ orbitals play important roles in the stability of variou…
Ohne Silanole: Ein verzweigtes Oligomer mit terminalen Dialkoxysilylgruppen wurde auf nichthydrolytischem Weg synthetisiert, und zwar durch direkte Alkoxysilylierung eines Tetraalkoxysilans in Gegenwart der Lewis-Säure BiCl3 (siehe Schema). Die Reaktion, bei der keine intermediären Silanolgruppen gebildet werden, biet…
In this paper, we demonstrate a surfactant-free method to fabricate large-area SWCNT film based transparent conductive (SWCNT-TC) electrodes with uniform properties (optical and electrical) via the fusion of layer-by-layer (LBL) deposition. The optical and electrical properties of SWCNT-TC electrodes are comparable to…
The van der Waals (vdW) potentials governing macroscopic objects have long been formulated in the context of classical theories, such as Hamaker's microscopic theory and Lifshitz's continuum theory. This work addresses the possibility of constructing the vdW interaction potentials of nanoparticle species using multisc…
Mixing Mg with Ti leads to an alloy with markedly faster hydrogenation kinetics as compared to that of pure Mg, but the resulting hydrides are too stable for hydrogen storage applications. Moreover, Mg−Ti alloys are thermodynamically unstable with respect to decomposition into the elements. In this Letter, we show by…
Understanding the response of diatoms to nutrient stress is important, both on its own terms and for the accurate portrayal of this key group of organisms in ecological and biogeochemical models. We therefore examined the growth and elemental composition of Thalassiosira weissflogii grown to nutrient depletion and the…
Color sense: 2-(Anthracen-9-ylethynyl)-1-methylbenzimidazole (BzIm-An) shows a ratiometric color change in emission from blue to light yellow to green with increasing Zn2+ concentration. The dimeric 3:1 complex [{(BzIm-An)3Zn2+}2] formed at low Zn2+ concentration is converted into the 2:1 complex [(BzIm-An)2Zn2+] at h…
In this study, porous poly(lactide-co-glycolide) (PLGA) (50/50) microspheres have been fabricated by the gas-foaming technique using ammonium bicarbonate as a gas-foaming agent. Microspheres of different porosities have been formulated by varying the concentration of the gas-foaming agent (0%, 5%, 10% and 15% w/v). Th…