Materials Literature
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Tellurium film modified glassy carbon electrode (TeFE) is presented in this paper as a promising alternative candidate for simultaneous electrochemical determination of Cd(II) and Pb(II) using anodic stripping voltammetry (ASV) analysis. Key operational parameters, including deposition potential and deposition time we…
The recent advances in thin-film thermoelectric (TE) materials have created opportunities for on-chip cooling and energy-harvesting with heat-fluxes >100W/cm2. However, it remains unclear how effective these materials are in the context of realistic microprocessor floorplan and workloads. Moreover, these TE materials…
Reaction between isopropyl phenyl ketoxime and acetylene in the KOH–DMSO–n-hexane system (70 °C, ∼ 5 min), along with known 3,3-dimethyl-2-phenyl-3H-pyrrole (51% yield) and 4,4-dimethyl-5-phenyl-1-vinyl-2-pyrrolidinone (7% yield), affords also unexpected 2-(2-ethynyl-3,3-dimethyl-2-phenyl-1-aziranyl)-4,4-dimethyl-5-ph…
In the BEOL (back end of line) process, tungsten (W) chemical mechanical planarization (CMP) has been commonly used to form contacts. As size of the metal line is shrunk, metal CMP will directly impacts resistance and reliability characteristic of final product. As examples, W contact recess and seam (or void) defects…
This paper discusses CNT's applications in thermal management. High-performance heat dissipation pastes for thermal interface applications were developed by dispersing CNT powder into a silicone oil that widely used in thermal interface material, Thermal conductivities of the resulting samples were measured. The effec…
This paper proposes the operation of an energy storage devices consisting of a Li-Ion battery module and a supercapacitor (SC) bank for future transportation with a fuel cell (FC) as the main power source, so that FC vehicles (FCVs) with energy storage devices could result in reduced cost, improved fuel economy, lifet…
High voltage cables are permanently subjected to electrical and thermal operating constraints, leading to their progressive degradation and deterioration. The control and the identification of the thermal aging parameters of high voltage insulation require the use of several characterization techniques. In this work w…
Abstract Stimuli-responsive multimodality imaging agents have broad potential in medical diagnostics. Herein, we report the development of a new class of branched-bottlebrush polymer dual-modality organic radical contrast agents—ORCAFluors—for combined magnetic resonance and near-infrared fluorescence imaging in vivo.…
This paper is devoted to the study of the probability of relaxation of a bistable nanomagnet from high energy to one of its two energy minima. The evolution in phase space of a Gibbs ensemble of replicas of the nanomagnet is analyzed in the limit of small Gilbert damping and in the absence of thermal noise. It is show…
This paper investigates the effects of a load on the iron loss of an electrical sheet using a ring specimen with a secondary coil under pulse width modulation inverter excitation. In this experiment, the resistance load is connected to the secondary coil to simulate the motor load. To investigate the iron loss under l…
The dc magnetization and ac spin susceptibility measurement results of MnxSi single crystals with x ≈ 0.96-1 are reported. Magnetic phase diagrams for MnxSi of different Mn deficiency levels are mapped and compared. We provide strong evidence that the existence of manganese deficiency is common in the MnSi single crys…
Nanostructured metal oxides grown via porous-alumina (PA)-assisted anodization of sputtered refractory metals are of increasing interest as active layers for gas microsensors. Although nanostructured titanium oxide is particularly attractive, PA-assisted anodic formation of titanium oxide nanostructures remains a chal…
The spreading of melted copper nanodroplets on a Ni(100) crystal face has been studied by the method of molecular dynamics with a tight binding potential. The obtained kinetic curves for the radii of four bottom layers and the kinetics of dynamic contact angle well agree with the results of independent investigation […
Multi-Beam-Interference (MBI) is a promising approach for the direct nano structuring of surfaces. An important characteristic of MBI is the interference contrast which describes the modulation depth of the intensity distribution. While theoretical calculation for the interference contrast exists in literature, no act…
We report our recent results on studies of the effect of magnetic anisotropy induced by stress annealing on the domain wall (DW) dynamics of Co-rich microwires. We observed that the DW velocity of nearly zero magnetostrictive glass-coated microwires can be enhanced either by stress annealing of Co-rich microwires or e…
Complex impedance spectroscopy is used to characterize carbon nanotube (CNT) based gas sensors under the exposure of different concentrations of NH3(10 ppm, 25 ppm, 50 ppm and 100 ppm). The characterization is performed in a frequency range between 20 Hz and 2 MHz. The frequency response of the CNT film showed high de…
We study the dependence of anisotropy and damping in MgO/Co-Fe-B/Ta/Co-Fe-B/MgO films on annealing temperature and Co-Fe-B composition by vector network analyzer ferromagnetic resonance. The effective areal magnetic anisotropy Keff· teffand Gilbert damping α in samples with Co40Fe40B20were found to be constant for 240…
Because the diamond-like carbon (DLC) thin film overcoat on a hard disk surface plays an important role in maintaining the reliability and durability of the head-disk interface, DLC degradation is a critical issue in thermally assisted magnetic recording (TAMR). The use of helium in hard disk drives (HDDs) is being de…
Castellation of plasma facing components is foreseen as the best solution for ensuring the lifetime of future fusion devices. However, the gaps between the resulting surface elements can increase fuel retention and complicate fuel removal issues. To know how the fuel is retained inside the gaps, the plasma sheath arou…
LiNi0.8Co0.15Al0.05O2, as the cathode materials for lithium ion battery, were prepared from the precursors, Ni0.8Co0.15Al0.05(OH)2 which were synthesized by chemical co-precipitation method. LiNi0.8Co0.15Al0.05O2 particles are modified with AlF3 and AlPO4. Even though the initial discharge capacity of the coated LiNi0…