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 binary mixture of two compounds, viz., Cholesteryl laurate (CL) and diethyl 4, 4′-azoxy benzoate shows the cholesteric and smectic phases sequentially when the specimen is cooled from its isotropic phase. Refractive indices, birefringence, and optical transmittance have been measured by the optical technique. With…
Abstract High-quality single-crystalline sapphire is used to prepare various semiconductors because of its thermal stability. Here, we applied the tempering technique, which is well known in the production of chocolate, to prepare a sapphire substrate. Surprisingly, we successfully realised millimetre-range ordering o…
We present a finite-element analysis of the coupled electro-thermal behavior of a mm2-sized power DMOS device, with a focus on resolving μm-sized structures. For a reliable power technology, the predictions of current and temperature distributions under self-heating are vital for reaching long device lifetime. Two asp…
The aim of this study was to improve thermal stability, mechanical, and surface properties of thermoplastic polyurethane (TPU) with the addition of BaTiO3. The TPU/BaTiO3 composites having various ratios of TPU and BaTiO3 were prepared. The chemical structure of the prepared composites was investigated by FTIR. Therma…
Electron Rutherford backscattering measures the near‐surface composition of samples quantitatively. For interpretation, one usually relies on the single‐scattering approximation. Here, we present results for four compounds, containing oxygen and other species, varying from very light to very heavy. Two Monte Carlo cod…
Hierarchical porous structures are ubiquitous in biological organisms and inorganic systems. Although such structures have been replicated, designed, and fabricated, they are often inferior to naturally occurring analogues. Apart from the complexity and multiple functionalities developed by the biological systems, the…
Abstract In‐situ neutron‐diffraction and temperature measurements were simultaneously applied to investigate low‐cycle‐fatigue behaviour of a nano‐precipitate strengthened nickel‐based superalloy. Two transitions in the temperature‐evolution are observed subjected to cyclic loading. Two models are compared with the me…
Double hydrogen-bonded thermotropic liquid crystal complexes (DHBLC) have been isolated from molar ratios of Oxaloacetic acid (OAC) and eight alkyloxy benzoic acids (nBAO) whose carbon number varied from pentyloxy to dodecyloxy. The complexes are referred as OAC+nBAO where n varied from 5 to 12. In each of the synthes…
This study presents a plausible dual-site mechanism and microkinetic model for CO oxidation over palladium-substituted ceria incorporating the theoretical oxygen storage capacity of different catalysts into the kinetic model. A rate expression without prior assumption of rate-determining steps has been developed for t…
The electronic conductivity anisotropy of $\mathrm{T}{\mathrm{i}}_{3}\mathrm{Si}{\mathrm{C}}_{2}$ is directly evidenced from data collected on (i) a thin film epitaxially grown on a $(11\overline{2}0)$-oriented SiC single crystal and (ii) a single crystal. Density functional theory calculations, including the linear-r…
Straightforward modulation of the gelation, absorption and luminescent properties of a tris(pyrene) organogelator containing a C3 -symmetric benzene-1,3,5-tricarboxamide central unit functionalized by three 3,3'-diamino-2,2'-bipyridine fragments is achieved through donor-acceptor interactions in the presence of tetrac…
In order to understand fundamental interactions at the interface between immobilized enzymes and ceramic supports, the authors compare the adsorption features of chymotrypsin on SiO2 and TiO2 colloidal particles by means of a combination of adsorption experiments and molecular dynamics simulations. While the dependenc…
The self-assembly in aqueous solution of three novel telechelic conjugates comprising a central hydrophilic polymer and short (trimeric or pentameric) tyrosine end-caps has been investigated. Two of the conjugates have a central poly(oxyethylene) (polyethylene oxide, PEO) central block with different molar masses. The…
We report how the superconducting phase forms in pseudo-single-crystal ${\mathrm{K}}_{x}\mathrm{F}{\mathrm{e}}_{2\ensuremath{-}y}\mathrm{S}{\mathrm{e}}_{2}$. In situ scanning electron microscopy (SEM) observation reveals that, as an order-disorder transition occurs, on cooling, most of the high-temperature iron-vacanc…
The article discusses how bonding concepts have allowed the development of amorphous semiconductors, in particular the 8−N rule of bonding, the doping mechanism in a‐Si:H, the weak effect of disorder on s states in amorphous oxide semiconductors, the strong effect of disorder on p states in amorphous carbon, and the e…
Graded interface core–shell nanocrystals (NCs) are being investigated to attain highly luminescent systems and are also anticipated to be “blinking-free” at the single-particle level. In the present work, CdSe/ZnSe-graded core–shell NCs with varying confinement potential profile are studied at the single-particle leve…
Recently, the progress in using the plant extracts in the synthesis of nanoparticles (NPs) has occupied a lot of attention. In this study, zinc oxide nanoparticles (ZnO NPs) were synthesized in the presence and without the presence of a plant extract. The morphology and the size of ZnO NPs synthesized using these two…
We present a new method for the accurate characterization of soft magnetic sheets using a permeameter based on the precise compensation of the magnetomotive force (MMF) drop in the flux-closing yoke. It has been developed in order to overcome the systematic uncertainty affecting the value of the magnetic field strengt…
ABSTRACT The phase behavior of [6,6]‐phenyl C61‐butyric acid methyl ester (PCBM) blends with amorphous polymers with different degrees of aromaticity has been investigated by differential scanning calorimetry (DSC) and small‐angle neutron scattering (SANS). The polymers investigated are the homologous series of polyst…
Elemental distribution images acquired by imaging X-ray fluorescence analysis can contain high degrees of redundancy and weakly discernible correlations. In this article near real-time non-negative matrix factorization (NMF) is described for the analysis of a number of data sets acquired from samples of a bi-modal α+β…