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 solid solubility of CaTiOGeO 4 with CaZrOGeO 4 and the structural phase transitions occurring in this solid solution as a function of temperature and composition were examined using in situ high temperature X-ray powder diffraction. Structural phase transitions were identified based on the determination of spontan…
Understanding the mechanisms of solid-liquid systems is fundamental to the development and operation of processes for the production of agrochemicals and pharmaceuticals. The use of a strong inorganic base in an organic solvent, typically, potassium carbonate in dimethylformamide, is often used to facilitate the forma…
We report the first measurements, to our knowledge, of the modification of spontaneous emission rates of Eu3+ ions in the visible region owing to an absorbing medium. Precise levels of the absorption coefficient are introduced by codoping with different amounts of Nd3+. We use a binary glass system PbO-B2O3 as the hos…
This study evaluates the rustling sounds of polyester warp knitted fabrics using a psychophysiological technique. We generate and record the rustling sounds of three structural types—reverse locknit, double denbigh, and sharkskin—of warp knitted fabrics, all made from 75D polyester filament yarn at the same density. T…
This work has extended the knowledge of corrosion inhibition by sodium metavanadate (NaVO3) and copper carbonate (CuCO3) in the carbon dioxide (CO2) separation process using aqueous solutions of monoethanolamine (MEA). The inhibition behavior and performance of these two inhibitors were examined using the electrochemi…
Supramolecular porphyrazines with eight pyridine donor groups bound through ethylthio ester bridges on the periphery have been prepared. The pyridine donors were quaternized with iodomethane to octacationic porphyrazine. The nonanuclear supramolecular porphyrazine was prepared by the coordination of peripheral pyridin…
Abstract Thin films of BiO X , Sr X Ta Y O Z , and strontium bismuth tantalate (SBT) were deposited by metal‐organic (MO)CVD on 150 mm silicon (100) wafers. Some of the wafers were pre‐deposited with Pt electrodes. The substrate temperature and the deposition pressure were varied from 300 °C to 600 °C and from 0.35 mb…
Abstract The asymmetric macrocyclic compartmental ligand H 2 L, derived from the [1+1] condensation of 3,3'‐(3‐oxapentane‐1,5‐diyldioxy)bis(2‐hydroxybenzaldehyde) with 1,5‐diamine‐3‐azamethylpentane, forms the complexes [LnNa(L)(Cl) 2 (CH 3 OH)] (Ln = La–Nd, Sm–Lu) where the lanthanide( III ) ion resides in the N 3 O…
Abstract Density studies on the isotropic to smectic-F transition in higher homologues of N-(p-nalkoxybenzylidene)- p-n-decylanilines ( n O.10) mesomorphic compounds with n = 13, 14 and 15 and corresponding studies on thermal expansion coefficient maxima confirm the first order nature of this transition. The density s…
Poly (β-hydroxyalkanoates) (PHAs) are natural polyesters produced by a variety of bacteria.They are represented most commonly by poly (β-hydroxybutyrate) (PHB), an intracellular storage biodegradable polymer material. The production costs of PHB are quite high compared with those of synthetic non-degradable plastics,…
The preparation, characterization as well as the adsorption properties of MCl n (M= Fe(III), Co(II) and Cu(II)) from ethanol solutions by the new hybrid material cellulose acetate /Al2O3 coated with N-propyl-1,4 diazabicyclo [2.2.2] octane chloride group are described. The diamine is bonded to the cellulose acetate /A…
Abstract The objective of this work was the analysis of dynamic wetting behaviour of aqueous surfactant solutions on polymer surfaces in respect of spreading characteristics evaluation. Surfactants with different ionogeneity (ionics and non-ionics) in a wide concentration range were used in this study. The sessile dro…
Journal URL: http://www.ingentaconnect.com/content/sgt/pcg; http://www.societyofglasstechnology.org.uk/cgi-bin/open.cgi?page=journal&sessionid=85597106; http://www.societyofglasstechnology.org.uk/cgi-bin/open.cgi?page=%20PC/PC-00a&sessionid=85597106
Low‐molecular‐weight (LMW) organic acids exist widely in soils and have been implicated in many soil processes. In the present paper, the effect of the anions of four LMW organic acids on the adsorption of potassium (K) by two variable charge soils was investigated. The results showed that the presence of organic anio…
Abstract The mineralogical properties of goethite and clay minerals from the Shewushan supergene gold deposit have been studied using X-ray diffraction (XRD) and transmission electron microscopy (TEM). These results show that in the weathering zone of the Shewushan supergene gold deposit the mineral assemblage is main…
Clay that contains kaolinite has been used extensively as a raw material for manufacturing of bricks and china at 900-1100 degrees C. This study used clay to stabilize the contaminant chromium(VI) [Cr(VI)] through a heating process at 500-1100 degrees C. X-ray absorption spectroscopic results indicated that the 500-90…
Four homologous series belonging to the family of 4‐(4‐substituted phenylazo)‐1‐naphthyl 4‐alkoxybenzoates (I a–d) (C n H2 n +1O–C6H4–COO–C10H6–N = N–C6H4–X) were prepared in which the 4‐ substituent (X) was varied between CH3O, CH3, Cl and NO2; while, within each homologous series, the number of carbon atoms, n, was…
The effects of the fabrication process on the current–voltage ( I – V ) characteristics of carbon nanotube field effect transistors (CNT-FETs) were studied in detail. A large hysteresis observed in the I – V characteristics of the CNT-FETs having no passivation film became small by passivating the device surface with…
The coadsorption of molecular nitrogen and oxygen on small cationic silver clusters in the gas phase is experimentally studied. The presence of oxygen enhances the adsorption probabilities of N2. This indicates a partial charge transfer out of the finite free electron reservoir of the small silver particles into the c…
We present sidewall functionalization of carbon nanotubes via various dissolving metal reduction methods. Carbanion complexes of lithium were prepared in liquid ammonia and THF and reacted with a series of alkyl and aryl halogenides, as well as methanol resulting in the formations of alkylated, arylated, and hydrogena…