Materials Literature
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Fe/Sn-codoped In 2 O 3 powders and films are prepared by a vacuum annealing process and a pulsed laser deposition technique, respectively. The structural and magnetic properties of the samples are investigated. The obvious room-temperature ferromagnetism is observed in both (In 0.92 Fe 0.05 Sn 0.03 ) 2 O 3 powders and…
Nanocrystalline Al3+ ions doped Mg0.2Mn0.5Ni0.3AlyFe2-yO4 compositions, where y=0.0, 0.05 and 0.10 have been synthesized by citrate precursor method. The X-ray diffraction (XRD) revealed that the ferrite has single phase cubic spinel structure. The calculated particle size from XRD data have been verified using transm…
The photostabilization of poly(vinyl chloride) (PVC) films by triorganotin(IV) complexes of the type Ph3SnL, Bu3SnL and Me3SnL of the benzamidoglycin complexes was investigated. The PVC films containing concentration of complexes 0.5% by weight were produced by casting method from tetrahydrofuran (THF) solvent. The ph…
Liquid crystal (LC) gratings with twisted alignment were fabricated by simple one-step polarizer-rotation exposure. An empty glass cell coated with photocrosslinkable polymer liquid crystal (PCLC) films was exposed by UV light with modulation of intensity or polarization. LC grating cells were obtained by filling the…
A nitrogen-enriched metallophthalocyanine, Cobalt (II) tetrapyrazinoporphyrazine (CoTPyzPz), modified with acid or phenylamine functionalized multiwalled carbon nanotubes (MWCNTaf and MWCNTPhNH 2 ) have been studied for application as an electrochemical capacitor in H 2 SO 4 . Both MWCNTaf/CoTPyzPz and MWCNTPhNH 2 /Co…
Abstract The development of molecular hydrogels that can be applied for mimicking bioactive molecules attracts extensive interests of researchers in fields of self‐assembly. In this study, we reported on several molecular hydrogels based on naphthylacetic acid‐peptides containing L ‐histidine formed by the heating‐coo…
Chromium pre-treatments of metal have been replaced by silane pre-treatments as more environmental friendly option. Nanoparticles can be added in the silane sol-gel network have been reported to improve corrosion resistance. In this work, the electrochemical corrosion resistance of low carbon steel coated with hybrid…
Impedance spectroscopy researches have been carried out for the electric and dielectric properties of systems based on polypropylene glycol and carbon nanotubes. The fractal behavior of those systems was revealed. The corresponding percolation threshold of 0.45% was found. The critical index of conductivity t = 1.43 w…
ZnO thin films doped with different Cu concentrations are fabricated by reactive magnetron sputtering technique. XRD analysis indicates that the crystal quality of the ZnO:Cu film can be enhanced by a moderate level of Cu-doping in the sputtering process. The results of XPS spectra of zinc, oxygen, and copper elements…
BACKGROUND: Magnetic nanoparticles in a variable magnetic field are able to produce heat. This heat (42-45°C) has more selective effect on fast dividing cancer cells than normal tissues. METHODS: In this work magnetite nanoparticles have been prepared via co-precipitation and phase identification was performed by powd…
The primary method used for boiler water treatment is the addition of chemicals to industrial boilers to prevent corrosion and scaling. The static scale inhibition method was used to evaluate the scale inhibition performance of 1-hydroxyethylidene-1, 1-diphosphonic acid (HEDP). Autoclave static experiments were used t…
Effect of the addition of poly(D-lactic acid) (PDLA) as stereocomplex (SC) on crystallization behavior of poly(L-lactic acid) (PLLA) had been systemically investigated. The result indicated that the inclusion of PDLA with higher MW into PLLA exhibited lower t 1/2 and showed accelerated crystallization behavior. Meanwh…
The development of stain etching relative to anodic etching for theproduction of porous silicon has been hampered by a lack offundamental understanding. By applying Marcus theory we havearrived at a more expansive understanding of the charge transferthat initiates and controls etching. No credible information isavaila…
In the present study, friction stir processing (FSP) was successfully carried out on Ti–6Al–4V alloy and nanocalcium phosphate (CaP) particles were incorporated during process. Subsequently, nanohydroxyapatite (HAp) film was effectively synthesised on Ti–CaP nanocomposite interlayer by sol–gel method. The Ti–CaP nanoc…
Luminescence properties of the two series of the La 1-x Eu x VO 4 (x ranges from to 0.3) solid solutions synthesized by the solid state and co-precipitation methods were investigated.. Luminescence spectra of the investigated samples consist of narrow spectral lines caused by inner f - f electron transitions in the im…
A small electrical explosion of wire (EEW) setup for nanopowder production is constructed. It consists of a low inductance capacitor bank of 2 μF–4 μF typically charged to 8 kV−30 kV, a triggered gas switch, and a production chamber housing the exploding wire load and ambient gas. With the EEW device, nanosize powders…
Low volatile organic compounds (VOCs) coatings are increasingly attractive due to both environmental concerns and high protective performance. High solid systems play a central role in this scenario. In this work, 100% solids polyurethane-urea hybrid coatings have been prepared. The coatings were prepared using methyl…
NiO/AC particles were synthesized by infinite dilute method. The synthesized NiO/AC particles with a structure of cubic crystalline phase are well dispersed and bulk like. The electrochemical tests show that the NiO/AC particles have relatively high capacitance and excellent capacitive retention. The good structure an…
The purpose of the study was to evaluate resistance to electrochemical corrosion of magnesium alloy WE43 after plastic working. Potentiodynamic and immersion corrosion tests were performed in solutions with concentration of 0,01 – 2 M NaCl. The tests of microstructure of magnesium alloy after its exposure in NaCl solu…
Abstract Bislang ist die Thermoelektrik eine Nischentechnologie, die ihre Stärken hat, wenn es auf Zuverlässigkeit oder Komfort ankommt. Die Technologie bietet aber darüber hinaus in Zukunft die Chance, Energie effizienter zu nutzen und die CO 2 ‐Emmission zu reduzieren. Thermoelektrik kann zur Abwärmenutzung angewend…