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。
Nanocomposite of low density polyethylene (LDPE)/TiO/sub 2/ was prepared via solution blending method. The disperse performance of TiO/sub 2/ in LDPE was observed with Scanning Electron Microscope. It is shown that TiO/sub 2/ could be dispersed uniformly in LDPE through controlling temperature and content of the solut…
Solidification/stabilization (S/S) treatment is used to treat hazardous wastes for disposal and in the remediation/site restoration of contaminated land. S/S is also an increasingly popular technology for brownfields (industrial property) redevelopment, since treated wastes can often be left on-site and to improve the…
A new type of insulating polymer, syndiotactic polypropylene prepared by metallocene catalyst has been found to exhibit much superior electrical, thermal and mechanical properties compared with those of conventional isotactic polypropylene, atactic polypropylene and polyethylene. These excellent characteristics of syn…
Abstract A survey of 18 paramagnetic species [L n Ru(NO)] k , including seven new examples studied by in situ electrolysis, reveals a surprisingly narrow range of EPR parameters despite a wide variety of ligands such as pyridine, polypyridines, imines, amines, nitriles, phosphanes, carbonyl, cyclopentadienides, halide…
Abstract Summary: We studied changes in the mechanical properties of polyelectrolyte‐multilayer capsules induced by YF 3 ‐nanoparticle formation inside the layers. Using direct‐deformation measurements by colloidal probe atomic force microscopy (AFM), we found that the nanoparticle formation increases the capsule stif…
Treatment of the complex ( 1 ) with HBF 4 ·OEt 2 in diethyl ether−acetone (2:1) affords the elongated dihydrogen derivative ( 2 ), which reacts with NaCl and CsF to give (X = Cl ( 3 ), F ( 4 )). The X-ray diffraction studies on 2 and 4 and DFT calculations on the model complexes ( 1t ), ( 2t ), and (X = Cl ( 3t ), F (…
Abstract There has been a growing interest in tunable devices applications such as filters, phase shifters, and resonators. Both of ferromagnetic and ferroelectric materials have strong advantages in the high tunability and stability. Therefore many reports have been published by employing ferrite or dielectric materi…
In this paper, accelerated multi-factor aging tests in laboratory have been conducted on the stator bars of a large generator. During the period of aging, the temperature spectra of dielectric dissipation factor tan /spl delta/ of stator insulation were employed to investigate aging characteristics of insulation mater…
We have been investigating the residual-charge measurement as a diagnostic method for water-tree deteriorated cross-linked polyethylene cables. The conventional method uses the amount of the residual charge as a diagnostic index, but it has a difficulty in estimating the degree of water-tree deterioration in a long li…
The aim of synthesis of anisotropic impedance plane reflecting a plane uniform wave in a given direction at the desired polarization is solved. The distribution of the impedance is expressed analytically and constitutes a periodic structure. The restrictions on the class of the allowable scattering patterns are formul…
The line of emergence of a grain boundary at the surface of a face centered cubic crystal may decompose into a nanoscale triangular prism with a chevronlike structure. This behavior has been found in gold, and we address here the generality of this phenomenon. The stability of the chevron structure is studied and disc…
Water tree degradation in XLPE cables used for under-ground distribution or transmission lines is a serious problem. Some diagnostic methods to detect water tree degradation have been developed, but the sensitivity of them is not sufficient for 22 kV/66 kV class XLPE cables. The reason is that conventional methods are…
Abstract A series of new lanthanide polyoxomolybdates was synthesised by reaction of lanthanide cations with the heptamolybdate anion (Mo 7 O 24 ) 6− . The heteropolyanions [Ln 4 (MoO 4 )(H 2 O) 16 (Mo 7 O 24 ) 4 ] 14− (Ln = La III , Ce III , Pr III , Sm III , Gd III ) were isolated as either their ammonium or tetrame…
Service experience has shown that contamination degrees of insulators may be different from one type to another depending on the shed profile and the insulation material even under the same service conditions. As a countermeasure against contamination flashover, the 3-outer-rib type insulator featuring open profile ha…
Present electrical devices have large calorific power, and improvement of heat dissipation has been a very important subject. In this paper, we developed the novel epoxy resins which increased the thermal conductivity that has been a barrier to heat dissipation. The medium of thermal conduction for insulating resins i…
Abstract The site occupancy and anisotropy distribution of Al substituted BaFe 12− x Al x O 19 (0.0 ≤ x ≤ 4.0) have been studied with Mössbauer spectroscopy, X‐ray diffraction, and vibrating sample magnetometry. The results suggest that the coercivity, magnetization, and magnetocrystalline anisotropies are closely rel…
The magnetic, the magneto-optical, and the optical properties of ${\mathrm{Ni}}_{2}\mathrm{MnIn}$ alloy films with significantly different atomic orders (from nearly single crystalline to highly disordered or almost amorphous) were investigated. The crystalline ${\mathrm{Ni}}_{2}\mathrm{MnIn}$ alloy films were ferroma…
Concentrated suspensions of model colloidal hard spheres at a wall were studied in real space by means of time-resolved fluorescence confocal scanning microscopy. Both structure and dynamics of these systems differ dramatically from their bulk analogs (i.e., far away from a wall). In particular, systems that are a gla…
We demonstrate the epitaxial growth of hard-sphere hcp and double hcp crystals using a surface pattern that directly dictates the stacking sequence. A detailed three-dimensional analysis based on real-space measurements is performed on crystal structure as a function of template-crystal mismatch, which demonstrates th…
The colloidal synthesis of CdS nanoparticles with the biostabilizers cysteine and glutathione, respectively, at pH values ranging from 4 to 10 is described. For the adjustment of their UV/Vis absorption properties and hence their band gap energies, the Statistical Design of Experiments (DoE) was used. This method allo…