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。
Pollution flashover of line insulators may cause regional accidents. Research on the effect of non-uniform pollution on the electrical performance of insulators is important for the outdoor insulation coordination. A study on the effect of the non-uniform pollution distribution on the withstand characteristics of an i…
Structural properties of NaAlH 4 /C nanocomposites were studied using 23 Na and 27 Al solid-state NMR. The samples were synthesized by melt infiltration of a highly porous carbon support, with typical pore sizes of 2−3 nm. Physical mixtures of high surface carbon with alanates in different stages of hydrogen desorptio…
Powder x-ray diffraction study of Mn2NiGa ferromagnetic shape memory alloy shows the existence of a 7M monoclinic modulated structure at room temperature (RT). The structure of Mn2NiGa is found to be highly dependent on residual stress. For higher stress, the structure is tetragonal at RT, and for intermediate stress…
Abstract Nanocomposite films and coatings with improved properties were produced from ultrasonic dispersed chitosan and hydrophilic bentonite nanoclay. Bio‐hybrid coatings were applied onto argon–plasma‐activated LDPE coated paper. The intercalation of chitosan in the silicate layers was confirmed by the decrease of d…
We theoretically studied how the electric field effect can modify thermoelectric properties of intrinsic, $\mathbit{n}$-type and $\mathbit{p}$-type bismuth telluride nanowires with the growth direction [110]. The electronic structure and the wave functions were calculated by solving self-consistently the system of the…
Synthesis and characterization of gold-nanoparticle-cored dendrimers (NCDs), in which the dendrons are attached to the gold core through gold-carbon bonds, are described. Synthesis of these materials involved the simultaneous reduction of HAuCl(4) and a Fréchet-type dendron with a diazonium group at the focal point, a…
In this work, we demonstrate the results of a novel approach developed in our lab to prepare bimetallic Janus particles, which are composed of silica particles with differing metals on opposite hemispheres. SEM imaging, EDS mapping, and XPS analysis clearly indicate that beads are capped with two different metals, typ…
Objective of this study is the measurement and prediction of the effect of structural changes on the electronic properties of discotic liquid crystals (DLCs), an emerging class of organic semiconductors. Relative changes in frontier orbital energies of potentially discotic triphenylene (TP) and phthalocyanine (Pc) der…
The thermal conductivity of single-walled carbon nanotube (SWCNT)/polystyrene composites, prepared by a method known to produce a uniform distribution of SWCNT bundles on the micrometer length scale, was measured in the temperature range from approximately 140 to 360 K. The thermal conductivity enhancement (50% for 1…
Current density is a key factor of plasma electrolytic oxidation process. Its influences on structure, mechanical, and tribological characteristics of ceramic coatings on ZK60 Mg alloy by pulsed bipolar microplasma oxidation in Na(3)PO(4) solution were studied in this paper. Thickness, structure, composition, mechanic…
In situ forming implants (ISFI) have shown promise in delivering adjuvant chemotherapy following minimally invasive cancer therapies such as thermal ablation of tumors. Although ISFI systems have been thoroughly investigated for delivery of high molecular weight (Mw) therapeutics, little research has been conducted to…
We study field-effect transistors made of single- and double-walled carbon nanotube networks for applications as memory devices. The transfer characteristics of the transistors exhibit a reproducible hysteresis which enables their use as nano-sized memory cells with operations faster than 10 ms, endurance longer than…
The authors report scalable growth of free-standing graphene wafers with copper(Cu) catalyst on SiO2/Si substrate at low temperature and investigation of their thermal conductivity. The Cu is the most common and the cheapest catalyst among electronic materials. Our process for producing the graphene with the Cu is bas…
We study ferromagnetic properties of Heusler-alloy Co2FeSi epilayers grown on silicon (Si). The magnetic moment and in-plane magnetic anisotropy of the Co2FeSi/Si(111) epilayers vary significantly with the growth temperature (TG) even in the low-temperature region (TG≤200 °C). These features are induced by reaction ph…
Abstract Light‐weight composites reinforced with whole chicken feathers have better flexural strength than composites reinforced with feather fibers (barbs) and nearly thrice higher tensile strength and seven times higher tensile modulus than composites reinforced with powdered chicken feather quill. Chicken feathers…
In addition to the common use of glutaraldehyde to nonspecifically cross-link protein crystals through lysine residues disposed on the surface of the protein, the use of gentle vapour diffusion of glutaraldehyde offers a convenient way to limit polymerization and to allow slow diffusion throughout the crystal. In the…
We report on high quality individual solution processed single-walled carbon nanotube (SWNT) field effect transistors assembled from a commercial surfactant free solution via dielectrophoresis. The devices show field effect mobilities up to 1380 cm2/V s and on-state conductance up to 6 μS. The mobility values are an o…
Environmental context. The increasing use of nanomaterials in consumer products has led to increased concerns about their potential environmental and health impacts. TiO2 is a widely used nanoparticle found in sunscreens and electronic products. In order to understand and predict the mobility of TiO2 in the natural en…
We report the investigation of Zintl-phase $\text{Na}{(\text{K})}_{8}{\text{SnSb}}_{4}$ and related compounds that contain ${\text{SnSb}}_{4}$ tetrahedral anions using first principles electronic structure, Boltzmann transport, and density functional phonon calculations. We find that these compounds are narrow-gap sem…
Attempts to crystallize the noncovalent complex of recombinant human insulin with polysialic acid were carried out under normal and microgravity conditions. Both crystal types belonged to the same space group, I2(1)3, with unit-cell parameters a = b = c = 77.365 A, alpha = beta = gamma = 90.00 degrees. The reported sp…