Materials Literature
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In this paper, the modeling of force sensors built with rare-earth iron giant magnetostrictive materials is studied. For such a purpose, a magneto-mechanical strongly coupled FE model is proposed. Using the proposed model, the input-output characteristic of a force sensor built with giant magnetostrictive material (Tb…
Abstract Samples of pure Cu and Cu with 0.17 wt.% Zr were processed by equal-channel angular pressing up to 12 passes with a 90° die angle using route B c . Microstructure evolution after deformation and subsequent heat treatment of this severely deformed material was investigated. The deformed and annealed states wer…
Ca 0.997 Pr 0.002 TiO 3 thin films that show strong red luminescence were successfully prepared by an excimer laser assisted metal organic deposition (ELAMOD) process at temperatures from 25 to 400 °C. Laser irradiation induced an oxygen deficiency in the film. Oxygen annealing at 500 °C eliminated the oxygen vacancy…
Magnesium alloys containing lithium over 10 mass-% have good cold workability and high specific strength. However, the poor corrosion resistance of these alloys hinders their application. In this experiment, the effect on corrosion resistance of plasma thermal sprayed pure aluminum coating to Mg-Li alloy plates was in…
A nano‐Si 3 N 4 /5 wt% nano‐C composite was successfully fabricated for the first time via high‐energy ball milling, followed by spark plasma sintering. The milling promoted the amorphization of the starting powders; most of the carbon particles were transformed into nano‐size and embedded in the amorphous phase. This…
Mn‐doped zinc orthosilicate (Zn 2 SiO 4 )‐bearing phosphor microparticles were synthesized with controlled three‐dimensional (3‐D) morphologies inherited from the microshells (frustules) of diatoms (unicellular algae). Silica‐based diatom frustules were first coated with manganese and zinc oxide nanoparticles by expos…
We consider a liquid meniscus inside a wedge of included angle 2β that wets the solid walls with a contact angle θ. The meniscus has a convex interface that satisfies π∕2<θ+β<π. The capillary pressure gradient due to a small disturbance of the location of the contact line moves fluid from a neck region t…
The paper presents the results of the study on the influence of insulator profile on the aging performance of silicone rubber (SIR) insulators in salt-fog. Experiments have been conducted on various two-shed arrangements at 35 V/mm average stress and 0.25 S/m salt-fog conductivity level. The work is also extended to i…
The crystallization behavior of uncompatibilized and reactive compatibilized poly(trimethylene terephthalate)/polypropylene (PTT/PP) blends was investigated. In both blends, PTT and PP crystallization rates were accelerated by the presence of each other, especially at low concentrations. When PP content in the uncompa…
In this work, the reaction of the perovskite LaMnO3.15 with Feº has been promoted by thermal treatment of the mixture Feº/LaMnO3.15 at 200, 400 and 600 ºC. Mössbauer spectroscopy, X-ray diffraction (XRD), temperature programmed reduction (TPR) and temperature programmed desorption (O2-TPD) analyses suggested that at 4…
Electron and hole mobility in a sandwich-like structure ITO/polymer composite/Al based on a blend of single-wall carbon nanotubes (SWNT) and poly-N-vinylcarbazole (PVK) was studied with conventional time-of-flight (TOF) techniques and current-voltage characteristics in the steady-state mode. In SWNT (0.26 wt.%)- PVK f…
Abstract An ab initio theoretical approach has been used to calculate optimized geometries and the relative energies of various compositional arrangements in structures of dioctahedral smectites based on models consisting of two unit-cells. These calculations indicate that the energy differences between structures hav…
The kinematic response (including plastic deformation, failure initiation and fracture) of a soft‐skinned vehicle (represented by a F800 series single‐unit truck) to the detonation of a landmine shallow‐buried in (either dry or saturated sand) underneath the vehicle’s front right wheel is analyzed computationally. The…
Abstract The microstructural evolution, tensile response and wear properties of a two-phase Zn – Al alloy (Zn-8 wt.% Al, ZA-8) have been studied after severe plastic deformation by equal channel angular extrusion (ECAE). The experimental results reveal that the strength levels of the ECAE processed samples were consid…
A previous study of the immersion corrosion of mild and low-alloy steels in natural coastal seawater found a high degree of consistency between the corrosion losses observed at different testing sites when allowance was made for average seawater temperature and sites with obvious pollution and velocity effects were ex…
We succeeded in the growth of a hillock-free heavily boron-doped diamond (001) film with a boron concentration of 6×10 20 atoms/cm 3 , being an ideal bottom layer for diamond electronic devices. The growth of hillocks was suppressed using diamond (001) substrates with misorientation angles of around 2°. The suppressio…
Doxorubicin-loaded erythrocytes (DLE) were administrated to 15 lymphoma patients. Antibiotic peak concentration in blood decreased by 55%, doxorubicin circulated several times longer, and the area under the concentration-time curve increased 5 times if compared with standard doxorubicin administration. The DLE was wel…
In this paper, we present our results for the anisotropic refractive index measurements of commonly used liquid crystal (LC) materials (E7 and 5CB) in the whole visible–near infrared range. In order to achieve a high accuracy in the obtained values, we have employed a combination of two techniques, namely, Mueller mat…
Since air quality is a major public health concern, especially in urban areas, the use of alternative fuels for vehicular applications has been strongly encouraged. Of these fuels, hydrogen is the only one that can produce zero emission through fuel cells. However, the storage of such a very light and highly combustib…
Polycrystalline, Neodymium doped, yttrium aluminum garnet Nd:YAG is a functional materials for solid-state lasers. The synthesis of Nd:YAG powders requires a strict control of the precursor reactivity and composition. Sol-gel citrate-based methods increase the chemical homogeneity and reactivity of the precursor powde…