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Materials Science Poland
2013 Vol. 31, No. 4 484--488
EN Hydrogen diffusion through an amorphous membrane causes local disorders in the structure which can be detected through the measurement of changes of the electrical conductivity. Detecting these changes and comparing them directly with the amount of the permeated hydrogen provides information on the [...]
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Materials Science Poland
2010 Vol. 28, No. 2 427--438
EN A simple low temperature synthesis route has been presented of preparing nanosized, single phased LaFeO3, La(1-x)SrxFeO3 (x = 0.3, 0.5) and La(1-x)SrxCo0.2Fe0.8O3 (x = 0.2, 0.4) for cathode applications in ITSOFC. A soft chemical method has been applied, using tartaric acid as a template material an[...]
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Journal of Achievements in Materials and Manufacturing Engineering
PL .
EN Purpose: Silver alloys intended for industrial application should characterise by high electrical conductivity (as pure silver) as well as high mechanical and functional properties, stable also at elevated temperature. The objective of this work was to investigate the mechanical properties stability[...]
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Zeszyty Naukowe. Chemia / Politechnika Łódzka
2006 Z. 49 1-347
EN Zawiera tylko streszczenia angielskie referatów z konferencji: 4th Conference International Dielectric Society and 9th International Conference Dielectric and Related Phenomena. IDS & DRP 2006 (03-07.09.2006 ; Poznań ; Poland). Konferencja obejmowała następujące zagadnienia: Glass transition; Johari[...]
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Zeszyty Naukowe Politechniki Białostockiej. Matematyka, Fizyka, Chemia
1998 Z. 18 201-218
PL W pracy opisano jonowe i superjonowe przewodnictwo oraz mechanizm transportu jonów w jedno- i wieloalkalicznych szkłach krzemiankowych. Przedyskutowno tzw. mieszany efekt alkaliczny oraz zależność pomiędzy przewodnictwem i dyfuzją. Przedstawiono też przewodnictwo elektronowe szkieł tlenkowych i jeg[...]
EN In this paper ionic and superionic conduction and mechanism of ionic transport for single- and mixed- alkali silicate glasses are described. The 'mixed- alkali' effect and relationship beetwen conductivity and diffusion were discussed. Electronic conduction of oxide glasses and its mechanisms are pr[...]
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Polish Journal of Chemistry
1998 Vol. 72, nr 12 2583-2597
EN The electrooxydative polymerization of nickel complex of 1,5-diaminonaphthalene was performed in acetonitrile containing lithium perchlorate, using cyclic voltammetry and controlled potencial electrolysis. The film coated electrode showed an electroactive redox response in acidic solutions only. The[...]
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Nukleonika
PL Płytki GaAs z domieszkowanymi krzemem warstwami epitaksjalnymi bombardowano dwukrotnie jonami tlenu o energii 250 keV i 100 keV i o dawce od 10[indeks górny]12 cm-2 do 5x10[indeks górny]13 cm-2, a następnie wygrzewano w temperaturze 500°C. Dla oceny mechanizmu przewodnictwa w materiale powyższych st[...]
EN GaAs wafers with the Si doped epitaxial layers were bombarded by double energy of oxygen ions with 250 keV and 100 keV of 10[indeks górny]12 cm-2÷5x10[indeks górny]13 cm-2 doses followed by 500°C annealing process. Temperature dependence of the layer resistivity was evaluated in the temperature rang[...]
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Polish Journal of Chemistry
EN Polymerization of acrylonitrile (AN), without and in the presence of CuCl2, CoCl2, and NiCl2, formed polyacrylonitrile homopolymer (PAN) and polymer complexes of AN-CuCl2, AN-CoCl2 and AN-NiCl2, respectively. These polymer complexes were characterized using spectroscopic techniques. Electrical condu[...]
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Polish Journal of Chemistry
EN The processes on the silver electrode during its anodic polarization in concentrated chloride solutions (1,5 - 5,0 M) are identified. The analysis of the potentiodynamic E-I relationships showed, that the anodic polarization depends on the concentration of Cl ions and runs through two steps (peaks A[...]
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Polish Journal of Chemistry
1999 vol. 73 nr 4 599-605
EN New coordination polychelates of manganese(II), cobalt(II), nickel(II), copper(II), zinc(II) and cadmium(II) with the Schiff base derived from 4,4'-dihydroxydibenzoyl biphenyl and 2,3-butanedionedihydrazone have been synthesized and characterized by elemental analysis, electronic and IR spectra, ma[...]
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Materials Science Poland
2004 Vol. 22, No. 4 565--569
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Materials Science Poland
EN The 0.5(BiGd0.05Fe0.95O3)-0.5(PbZrO3) composite was synthesized by means of a high temperature solid-state reaction technique using high purity ingredients. Preliminary X-ray structural analysis confirms the formation of the composite. The dielectric constant and loss tangent have been studied. The [...]
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Computer Applications in Electrical Engineering
2011 Vol. 9 60--68
EN Electrochemical processes take place in a metal object immersed into sea water even if an anticorrosive coating is applied [1]. As a result, flowing field appears around the object. There are naval mines between many other objects situated in the sea. Naval mines can be put in the seabed in order to[...]
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Materials Science Poland
2016 Vol. 34, No. 2 460--469
EN Bulk samples of the BixSe1-x system with (x = 0, 5, and 10) were prepared using conventional melt quenching technique. Thin films were then deposited by thermal evaporation technique under high vacuum conditions from the prepared bulk samples. Effect of Bi substitution on surface morphology, electri[...]
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Archives of Metallurgy and Materials
EN Mixed ionic and electronic conducting K2NiF4-type oxide, Nd2Ni1-xCuxO4+δ (x=0~1) powders were synthesized by solid state reaction technique and solid oxide fuel cells consisting of a Nd2Ni1-xCuxO[...]
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Acta Geophysica
EN Magnetotelluric method is widely applied to study the Russian part of the East-European Craton, as well as the Caucasus and the Urals: several thousand soundings were performed during the last few years. Their periods range is approximately from 0.003 to 3000 seconds, which allows to study the sedim[...]
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Materials Science Poland
EN The results of measurements of electrical conductivity for titanium-nitride films prepared by the ammonolysis of sol-gel derived TiO2 and SiO2-TiO2 coatings are presented. Sol-gel derived films on silicon and quartz substrates were nitrided by ammonia treatment in the temperature range from 500 to 1[...]
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Materials Science Poland
2017 Vol. 35, No. 4 830--837
EN The influence of diamond crystallinity and preferred orientation on electronic conductivity of synthetic diamond films grown by hot filament chemical vapour deposition (HFCVD) was investigated. The CVD diamond films of different morphologies and crystallite sizes varying from 36 nm to 67 nm, measure[...]
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Archives of Metallurgy and Materials
2017 Vol. 62, iss. 3 1541--1547
EN The effect of iron and silicon addition on the structure and properties of aluminium wire rod obtained in the laboratory horizontal direct chill casting process has been analysed. In addition, the impact of laboratory wire drawing process has been examined. The addition of iron and velocity of casti[...]
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Optica Applicata
EN We have investigated the effect of short time reduction on the electrical conductivity of the 70SiO2-25Bi2O3-5K2O (mol%) bismuth silicate glasses. During a short time heat treatment in hydrogen (about 5 min at 375°C) the surface conductivity increases several orders of magnitude. It is suggested tha[...]
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