Materials Literature
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Abstract In den gängigen DVDs und Blu‐Ray‐Disks sind die Informationen in eine dünne Schicht tellurbasierter Verbindungen geschrieben, welche im Nanosekundenbereich mit Laserpulsen geeigneter Energie zwischen dem kristallinen und amorphen Zustand hin‐ und hergeschaltet werden können. Diese beiden Zustände weisen einen…
PURPOSE: Regional epidermal thickening and hair follicle width measurement by delayed gadolinium contrast magnetic resonance imaging (MRI) may assess the contrast agent gadolinium toxicity on mice skin. MATERIALS AND METHODS: Delayed contrast in vivo MRI was performed in mice. Six mice skin samples were removed and ex…
The elastic modulus and yield stress behaviour of a melt intercalated Poly(methylmethacrylate)/ organoclay (PMMA/C30B and PMMA/C20A) were studied using uniaxial tensile tests at different temperatures and different strain rate. The stress-strain response was obtained for different loading rates and different test temp…
The influence of doping with Ti and Al on the structure and hydrogen sorption properties of ZrFe2 was studied by XRD, XRSMA, and measurement of hydrogen absorption and desorption isotherms at pressure up to 300 MPa. The hydrogen capacity and equilibrium desorption pressures of hydrides decrease with increasing Al cont…
Grain growth is the simplest phenomena related to the evolution of a population of grains in crystalline materials. Some typical results obtained with vertex dynamics, a deterministic technique applied to the simulation of grain growth in polycrystalline materials, mostly in two dimensions (2D), are presented: (i) the…
Partial discharge (PD) measurements on transformers, cable systems and rotating machines are a worldwide accepted tool of quality control in factories and under on-site conditions. Common methods to improve the quality of noisy PD data are filtering and gating. Recently a new multi-channel synchronous method has been…
Momentum-conserving one-dimensional models are known to exhibit anomalous Fourier's law, with a thermal conductivity varying as a power law of the system size. Here we measure, by numerical simulations, several cumulants of the heat flux of a one-dimensional hard particle gas. We find that the cumulants, like the cond…
As promising technologies for fabrication of highly reliable Cu interconnects, using Ti barrier metal (Cu/Ti) and chemical vapor deposition (CVD) Co capping (Co/Cu/Ta/TaN) were compared. Both Cu interconnects similarly showed longer electromigration (EM) lifetime and larger activation energy of lifetime than conventio…
M-type strontium hexaferrite nanocrystals of radar absorbing material (NRAM) i.e. SrFe12O19 were synthesized by modified flux method that combine the controlled chemical co-precipitation process for nucleation and complete uniform growth during annealing with NaCl flux. Uniform structural morphological transformation…
Formation-energy formalism for a general interface is developed and applied to $\ensuremath{\alpha}\text{-Fe}$ host with boron (B) impurities. In bulk $\ensuremath{\alpha}\text{-Fe}$, B impurities prefer to be located at substitutional position rather than at interstitial. The estimated formation energy of substitutio…
Abstract Degradable polymer nanofibers produced by electrospinning are attractive for use in cell culture and tissue repair. However, the hydrophobicity and initial poor cell adhesion of synthetic polymers have limited their use in tissue regeneration. Herein, the surface of a poly(lactide‐co‐caprolactone) Arg‐Gly‐Asp…
A HfB 2 -SiC ceramics were fabricated via a reactive hot pressing using Hf , B 4 C , and Si as precursors. The reaction temperature for the reactive hot pressing between 1800 and 1900°C was determined by reaction of the precursor at different temperatures from 900 to 1800°C. The effective size reduction of precursors…
Abstract Eringaite, Ca 3 Sc 2 (SiO 4 ) 3 , a new mineral of the garnet group, is an accessory mineral in metasomatic rodingite-like rocks from the Wiluy River, Sakha-Yakutia Republic, Russia. Eringaite forms regular growth zones and irregular spots in complex garnet crystals containing a kimzeyite core. An electron ba…
Fatigue properties in high pressure gaseous hydrogen environment were investigated for pipe materials used in fuel cell vehicles and hydrogen stations. Cyclic pressurization tests were conducted using a tubular specimen filled with hydrogen pressurized up to 90MPa. Tested materials were types 316L, 304 and A286 stainl…
We took a model created by the molecular dynamics (MD) simulation with a semiempirical potential as a target system and explored how its amorphous structure and a few other properties depend on the simulation method. We found that if the cooling rate is too high, 1013–1014 K/s, the system has no time to adjust its str…
Low cycle fatigue properties of oxide dispersion strengthened variant of the reduced activation ferritic-martensitic ODS Eurofer steel were determined. Due to a limited volume of the material prepared by powder metallurgy, small cylindrical specimens designed for the IFMIF irradiation campaign were used. The reliabili…
We report on surface-enhanced Raman scattering (SERS) probes based on silver nanoparticles which are deposited on the core of the distal end of standard single mode fibers, by means of the very simple, versatile, and low-cost laser-induced nanoparticle technique. The morphological features of the Ag nanoparticles vary…
Experimental values of the Lorentz tensor components L j for uniaxial quasi-two dimensional “soft matter” objects on substrates (bilayer lipid membranes, multilayer Langmuir films, smectics A, hexatic smectics B, submicron films of discotics Col hd , micron anisotropic films of liquid-crystal comblike polymers and mac…
The silver/silica nanocomposites have been successfully prepared by the sol-gel process. After drying in air at 70°C for 30 min, samples are heat treated in air at 150, 300 and 500°C. Characterizations have been made by ultraviolet-visible (UV-VIS-NIR), X-ray diffraction (XRD), Differential scanning calorimetry (DSC),…
Composite films made from chitosan, plasticizer, and incorporated silica nanoparticles were evaluated for their mechanical properties, thermal stability, water permeability, and surface characteristics. The influence of the chitosan amino group protonation upon the observed silica effects was also analyzed. Only sligh…