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。
The acoustical properties (Young’s modulus, logarithmic decrement) of V-Ti-Cr alloys prepared using different technologies (in Russia, Japan, and the United States) are investigated in the temperature range from ∼100 to 300 K. It is revealed that, for all the alloys under investigation, the temperature dependences of…
In this investigation, the mutual solubilities for the ternary o -nitrobenzoic acid + m -nitrobenzoic acid + ethanol system were measured at (273.15, 283.15, and 293.15) K, respectively. The isothermal phase diagrams of the system were constructed on the basis of the measured solubilities. Two solid phases were formed…
Single crystals of the compounds Ca4OCl6, Sr4OBr6, Ba4OBr6, and Ba2OI2 were obtained by solid-state reactions. The crystals of Ba2OI2 are transparent and colorless and isopointal to K2ZnO2 adopting the orthorhombic space group Ibam (no. 72, Z = 4) with the cell parameters a = 747.20(9), b = 1392.02(18), and c = 678.12…
Irreversible processes accompanying the lithium incorporation into amorphous thin-film silicon are investigated. It is shown that the irreversible processes occurred during the cathodic polarization result in the formation of passive film at the silicon surface. The passive film at silicon is close, in its composition…
A simple optical method based on absorption of monochromatic light to investigate the dynamics of single walled carbon nanotube (SWCNT) suspensions is described. The well dispersed suspensions display a complex behavior, exhibiting peaks due to resonant scattering from SWCNT bundles with increasing diameters as a func…
Abstract A new gelator synthesized from 1,3,5-benzenetricarboxylic acid (BTA) and 4-hydroxypyridine (PHP) was capable of gelling water under different ultrasound power. The resulting gels were investigated by gel-to-sol dissociation temperature (Tgel), SEM, DSC, and rheology measurement, which showed that the assembli…
Carbon nanotubes (CNTs) because of their properties are alleged to be the key candidate additives for improving the mechanical properties of polymers and carbon fibre reinforced polymers (CFRPs). Nevertheless in order for the reinforcing effect of the nanotubes to be of practical use, the CNTs have to be mixed with th…
We prepared high‐density La 1.96 M 0.04 CuO 4 (M: Mg, Ca, Sr) polycrystalline ceramics by a spark plasma sintering method, and investigated the temperature dependence of the electrical conductivity, Seebeck coefficient, and power factor. Our results indicate that the relative density of these sintered ceramic samples…
Atomization and levitation are applied to undercool metallic melts and alloys prior to solidification. Heterogeneous nucleation on crucible walls is completely avoided giving access to large undercoolings. An undercooled melt possesses an enhanced free energy so that it can select different pathways to metastable soli…
The local dopant coordination environment and its effect on the photoluminescent (PL) spectral features of erbium-doped yttrium oxide nanotubes (NTs) were probed by synchrotron-based x-ray diffraction (XRD), x-ray absorption near-edge spectroscopy (XANES), and extended x-ray absorption fine structure (EXAFS). XRD, XAN…
Abstract Summary: The environmental scanning electron microscope (ESEM) enables in situ analyses of non‐conducting samples such as polymers, thus allowing microscopic phenomena to be correlated to macroscopic measurement data. Unfortunately, irradiation of polymers with electrons always causes beam damage 1 and it is…
Abstract Summary: Polyaniline is unique among conducting polymers in that its electrical properties can be reversibly controlled both by the oxidation state of the main chain and by protonation. In the present communication we report normal modes and their dispersion in polyaniline pernigraniline base (PANI PNB) form…
Ammonium acetate K does not adequately measure available K in the mineralogically diverse maize ( Zea mays L.)‐producing soils of Thailand. The objective of this study was to understand the causes of this problem and propose a solution using laboratory and greenhouse experiments to examine the release patterns and the…
Polymorphism and dehydration process have been studied by the micro-Brillouin scattering technique in hen egg white lysozyme crystals without cross-linking. Two types of crystal with tetragonal and monoclinic systems have been successfully grown by the two-liquid interface method. The dehydration processes of tetragon…
An experimental apparatus has been designed and constructed to accurately measure the next generation of high-performance thermal interface materials with unprecedented precision and accuracy. The apparatus is based on a common implementation of ASTM D5470 using meter bars. However, the apparatus in the present study…
Attempts were made to synthesize a nanocrystalline spinel phase by mechanical milling and subsequent annealing of Al–Ni–Fe decagonal quasicrystalline alloy. The milling of the decagonal phase was carried out in an attritor ball mill at 400 rpm for 1–40 h with ball to powder ratio of 100 : 1 in hexane medium. Subsequen…
The amphiphilic block copolymers methoxy poly(ethylene glycol)-poly(ε-caprolactone) was grafted to 2-hydroxyethyl cellulose to produce the water-soluble copolymers. Doxorubicin loaded nanoparticles were prepared by dialysis method and the sizes of nanoparticles were determined by dynamic light scattering in solution a…
Ge2Sb2Te5(GST)-based phase change memory (PCM) is a digital memory technology set to replace flash because of its greater scalability, lower programming power requirements, faster read-write times, and enhanced durability. Modeling efforts have focused on characterizing the coupled electrical, thermal, and phase-trans…
Epitaxial 0.67Pb(Mg(1/3)Nb(2/3))O(3)-PbTiO(3)-0.33PbTiO(3) (PMN-PT) thin films with electro-optic effects were fabricated on (PMN-PT) thin films with electro-optic effects were fabricated on (La0(0.5)Sr0(0.5))CoO(3) (LSCO)/CeO(2)/YSZ-buffered Si(001) substrates using double-pulse excitation pulsed laser deposition (PL…
The general context of this paper is introduction of a crystallization model into 3D software dedicated to a thermomechanical description of the injection-molding process. From the Kolmogoroff-Avrami-Evans equation for overall kinetics and from additional assumptions on nucleation, a system of differential equations i…