Materials Literature
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Chemical mechanical polishing (CMP) is an essential technology used in the semiconductor industry to polish and planarize a variety of materials for the fabrication of microelectronic devices (e.g., computer chips). During the high shear (~1,000,000 s(-1)) CMP process, it is hypothesized that individual slurry particl…
Since the early 1960s, many studies on criticality safety evaluation have been conducted in Japan. Computer code systems were developed initially by employing finite difference methods, and more recently by using Monte Carlo methods. Criticality experiments have also been carried out in many laboratories in Japan as w…
We suggest a mechanism causing large positive magnetoresistance (MR) in dilute magnetic semiconductors when hopping via nonmagnetic donor impurities dominates the conductivity. The effect is due to the increase in the characteristic width $\ensuremath{\sigma}$ of the donor energy distribution with increasing magnetic…
We have developed an interatomic potential that with a single set of parameters is able to accurately describe at the same time the elastic, vibrational and thermodynamics properties of semiconductors. The simultaneous inclusion of radial and angular forces of the interacting atom pairs (short range) together with the…
We report the photodeposition of a carbonaceous layer grown on a TiO 2 thin film by extreme ultraviolet (EUV)-induced chemistry of adsorbed n- tetradecane and the subsequent photo-oxidation of this film. Chemical analysis of the carbonaceous layer indicates that irradiation by 92 eV photons converts a fraction of the…
Complex copolymer mixtures can be directly analyzed via multidimensional chromatographic techniques after successful synthesis. High-performance liquid chromatography coupled to size exclusion chromatography (LC/SEC) revealed detailed information on the chemical composition, polymeric structure, and molar mass distrib…
This article presents the results of an experimental study on the long-term durability of delaminated glass fibre-reinforced polyester composites that have been repaired using a rubber toughened cyanoacrylate adhesive. While several studies have investigated cyanoacrylate for glass fibre-reinforced polyester repair ap…
Great efforts have been made to develop the ability to accurately and quickly predict the durability and reliability of vehicles in the early development stage, especially for welded joints, which are usually the weakest locations in a vehicle system. A reliable and validated life assessment method is needed to accura…
Herein, we provide a systematic theoretical and experimental study of the structural and optical properties of MMX (M=metal, X=halide) chains. The influence of solvent, temperature, and concentration has been analyzed to find suitable parameters for initial building-block associations in solution. By using density fun…
This report articulates synthesis, characterization, adsorption, and magnetic properties of four bimetallic Co(II)– or Ni(II)–Ag(I) 3D porous frameworks based on mixed-ligand systems. The cyanide-bridged M(II)–Ag(I) bimetallic compounds with the general formula [M II (L){Ag(CN) 2 } 2 · x H 2 O] n [ 1, L = piperazine,…
A finite-difference time-domain scheme is proposed for the rigorous study of liquid-crystal photonic and plasmonic structures. The model takes into account the full-tensor liquid-crystal anisotropy as well as the permittivity dispersion of all materials involved. Isotropic materials are modeled via a generalized criti…
ABSTRACT A series of organic, solvent‐free, epoxy‐modified polyurethane–acryalte (EPUA) adhesives were prepared through in situ surfactant‐free polymerization. Stable EPUA microemulsions with average particle diameters of less than 100 nm and a unimodal distribution were obtained through control of the epoxy content.…
In this letter, a high-k composite oxide composed of La2O3and HfO2is investigated for n-In0.53Ga0.47As metal-oxide-semiconductor (MOS) capacitor application. The composite oxide was formed by depositing five layers of La2O3(0.8 nm)/HfO2(0.8 nm) on InGaAs with post deposition annealing at 500°C. The MOS capacitors fabr…
The luminescent, mono-diimine ruthenium complexes [(H)Ru(CO)(PPh3)2(dcbpy)][PF6] (1) (dcbpy = 4,4'-dicarboxy-2,2'-bipyridyl) and [(H)Ru(CO)(dppene)(5-amino-1,10-phen)][PF6] (2) (dppene = bis(diphenylphosphino)ethylene; phen = phenanthroline) were conjugated with 1,2-dihexadecanoyl-sn-glycero-3-phosphoethanolamine (DPP…
The self-assembly reaction of arylhydrazones of β-diketones (AHBD), namely 2-[2-(2,4-dioxopentan-3-ylidene)hydrazinyl]benzenesulfonic acid (H 2 L 1 ) and 2-[2-(4,4-dimethyl-2,6-dioxocyclohexylidene)hydrazinyl]benzenesulfonic acid (H 2 L 2 ), with sodium or potassium hydroxides in MeOH/H 2 O (1/1, v/v) produces a serie…
A mixed film of 10,12-pentacosadiynoic acid (DA) and an amphiphilic cationic hemicyanine (SP) in the ratio 1:1 has been fabricated. This mixed film has been proved to be completely homogeneous due to the good compatibility between both molecules, i.e., hydrophobic regions sized and polar regions of opposite charge. Th…
Abstract A mathematical model based on 34 days continuous operation of an industrial isomerization unit was developed. The unit involves a radial‐flow reactor with a catalyst capable of converting xylenes and ethylbenzene to mixed xylenes. The catalyst contains EU‐1 zeolite, platinum, and alumina as binder. Two reacti…
Selective laser sintering (SLS) was used to fabricate graphite composite plates for polymer electrolyte membrane fuel cells, which has the advantages of reducing time and cost associated with the research and development of bipolar plates. Graphite composite plates with three different designs, i.e., parallel in serie…
ABSTRACT Steels with pearlitic microstructure exhibit strength anisotropy after cold drawing to increase the yield stress by a strain hardening mechanism. Such anisotropy manifests itself in the form of mixed mode propagation associated with crack deviation tending to axial growth following a path quasi‐parallel to th…
Fourier transform infrared (FTIR) microspectroscopy has been used to estimate the spatial proteoglycan (PG) and collagen contents in articular cartilage (AC). However, it is not clear whether the results of FTIR analyses are consistent between different species. Our aim was to clarify how three different FTIR PG param…