Materials Literature
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Electromigration in short Cu interconnects was studied under a number of conditions in Cu/Low-K technologies. Observed failure distributions displayed increasing dispersion of the failure times, characterized by the lognormal σ, as the Blech critical threshold, (jL)c, was approached. Simulations show that the apparent…
The magnetic properties and the magnetic entropy change Δ S have been investigated for Gd 6 Co 1.67 Si 3 compounds with a second-order phase transition. The saturation moment at 5 K and the Curie temperature T C are 38.1 μ B and 298 K, respectively. The Δ S originates from a reversible second-order magnetic transition…
A novel transient technique is developed to measure the thermal diffusivity of one-dimensional microscale wires. In this technique, a pulsed nanosecond laser is used to quickly heat the wire. After laser heating, the wire temperature decays slowly. Such temperature decay is sensed and used to determine the thermal dif…
ZnO tetrapods uniformly distributed over the surface of zinc foils were synthesized in situ at 900 °C in air. Control experiments indicate that ZnO tetrapods are evolved from ZnO microspheres and their clustered complexes, which act as the centers advancing to further one-dimensional (1D) growth and branching structur…
Copolymers of aniline with p‐toluidine were synthesized for different molar ratios of the respective monomers in acid medium. The electrical conductivity, charge transport and spectral characteristics upon incorporation of p‐toluidine units into the polyaniline backbone were investigated. The electrical conductivity o…
A low-voltage driving liquid crystal (LC) lens of large aperture is realized using a newly developed water-borne thermosetting paint with weak conductivity. The conductive film turns the spatially abruptly varying electric field into a smoothly varying electric field to produce the lenslike distribution of refractive…
ABSTRACT Thermal-spray coatings are widely used in marine structures including offshore pipelines without external cathodic protection (CP). Al, Zn and Zn-Al thermal-spray coatings protect steel by acting both as barrier coatings and as sacrificial anodes at local defects where corrosion would otherwise occur. Zn prov…
Indium tin oxide (ITO) films were deposited on glass substrates by ion-assisted electron beam evaporation, followed by annealing in vacuum and air at different temperatures from 200 to 350 °C with an interval of 50 °C for 1 h. The deposited films were analyzed by a four-point probe method, Hall effect measurement, an…
A new type of hierarchically porous materials is fabricated by assembling mesoporous nanoparticles via spray drying. Well-dispersed mesostructured silica nanoparticles (MSN), whose particle size distribution was narrow in the range of 20 nm and 50 nm, were prepared by a thermal deposition method. By spray drying a MSN…
Single crystals of the modification Ge(tP12) are prepared by compressing semiconductor-grade germanium to pressures above 11(1) GPa and heating to temperatures between 1200(100) and 1500(150) K before a stepwise cooling precedes a complete pressure release. The tetragonal crystal structure of Ge(tP12) is refined by me…
Abstract In this work, for the first time, copper ions(II) and cobalt ions(II) were successfully electrodepositioned into manganese oxide by cyclic voltammetry (CV), respectively. The results obtained from energy dispersive X‐ray analysis (EDX) testified that copper ions and cobalt ions were doped into manganese oxide…
The present study investigates the influence of copper addition on the thermal stability, and the activation energy of the glass transition and crystallization for Ge26Te74− x Cu x (x = 2.5, 5, 7.5, 10 and 12.5 at%) glasses. Differential scanning calorimetric (DSC) results under non-isothermal conditions for the Ge–Te…
Er3+ doped SrTiO3 ultrafine powders were prepared by solid state reaction in a molten NaCl flux. The structural properties were characterized by X-ray diffraction, field emission scanning electron microscopy, and Fourier transform infrared spectroscopy. The Stokes emission spectra of Er3+ in SrTiO3: Er3+ ranging from…
The reactive flow analysis of high energy material is performed using hydro shock compression of condensed matter (SCCM) tool that is being developed for handling complex multimaterial dynamics involving energetic and inert matters. Typically, the reacting flows of high energy materials such as fires and explosions gi…
Our objective is to demonstrate an electrospun fibrinogen-PDO (polydioxanone) composite scaffold will retain the superior cellular interaction of fibrinogen while producing a product with the functional strength needed for direct implantation. Fibrinogen-PDO composite scaffolds were electrospun with PDO ratios of 0% (…
Abstract Scratch‐resistant coatings for bisphenol‐A polycarbonate sheets were obtained by the sol–gel synthesis of an organic–inorganic hybrid system based on poly(ethylene oxide) and silica. The organic–inorganic hybrids were thermally cured into hard transparent coatings by using conventional and microwave (MW) oven…
The aim of this work is to investigate the influence of shallow traps on scintillating properties of YAlO3:Ce. Wavelength-resolved thermally stimulated luminescence measurements following X-ray irradiation at 10 K have been performed on both undoped and Ce-doped crystals. Different and composite glow curves and emissi…
In this paper, as-produced multiwall carbon nanotubes (MWNTs) have been analyzed by scanning electron microscopy and energy dispersive X-ray spectrometry, revealing the presence of Fe, Al, and Zn residuals and impurities. MWNTs have then been dispersed in Pluronic F127 aqueous solution and used to seed neuroblastoma c…
Nowadays medium voltage conversion systems, like traction and energy distribution systems, aim to increase power density. Volume, weight and material reduction are gaining the market today. Due to the development of new high power semiconductor devices a new working frequency range is conceived, where magnetic compone…
In the current study, the possibility of replacing woven glass fibres (WGFs) with seed oil palm fibres (SOPFs) as reinforcements for tribopolymeric composites is investigated. Mainly, two different polyester composites based on woven glass reinforced polyester (WGRP) and seed oil palm reinforced polyester (SOPRP) are…