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Prace Naukowe Instytutu Chemii i Technologii Nafty i Węgla Politechniki Wrocławskiej. Konferencje
EN Copper oxide supported on zinc aluminate spinel (ZnAl2O4) was prepared by hydrothermal treatment of copper nitrate, zinc acetate and basic aluminum nitrate solution. The physicochemical properties of the catalyst samples were investigated by X-ray diffraction (XRD), surface area measurements, temper[...]
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Archives of Metallurgy and Materials
EN The paper presents the results of structural and magnetic properties and thermal stability for a group of functional materials based on Fe61Co10Zr2.5Hf2.5Me2W2B20 (where Me = Mo, Nb, Ni or Y). Samples were obtained in the f[...]
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Archives of Metallurgy and Materials
2012 Vol. 57, iss. 4 1253-1259
PL Celem niniejszej pracy było zbadanie własności mechanicznych oraz stabilności termicznej szybkokrystalizowanego a następnie wyciskanego stopu aluminium 5083. Testy ściskania przeprowadzone w zakresie temperatur od 20°C do 450°C przy dwóch różnych prędkościach odkształcenia pozwoliły na wyzna[...]
EN The objective of the present study is to analyze the mechanical properties and thermal stability for rapidly solidified and extruded 5083 aluminum alloy (RS). Compression tests were performed in order to estimate flow stress and strain rate sensitivity relation for 5083 alloy in the temperature rang[...]
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Ars Separatoria Acta
2002 No. 1 149-159
EN The studies on properties of polyvinyl chloride grains separated by blowing them away from a fluid bed at three air flow rates have been carried out. Seven trade batches of PVC obtained by suspensive method have been tested. Fikentscher number, thermal stability, plasticizer absorptivity, swelling i[...]
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Optica Applicata
2012 Vol. 42, nr 4 725--736
EN The article presents the results of research into the effect of heating on the stability of a Cu/Ni multilayer applied onto a Si(100) substrate by the magnetron sputtering method. The multilayer was heated in a furnace atmosphere in a temperature range of 40–230 °C. The X-ray structural examination [...]
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Inżynieria Materiałowa
2010 Vol. 31, nr 4 1128-1131
PL Artykuł jest prezentacją nowej metody badań stabilności termicznej cienkich jedno- lub wielowarstwowych powłok przeciwzużyciowych osadzanych na materiałach narzędziowych. Metoda polega na cieplnej aktywacji w powłoce procesów makro- i mikroskopowych, których skutki zwykle wpływają na trwałość eksplo[...]
EN New method for investigation of thermal stability of thin multilayer wear resistance coatings deposited on tools is described. The principle of the method is a thermal activation of microscopic and then macroscopic processes, which have significant influence on wear resistance properties of the coat[...]
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Polish Journal of Applied Chemistry
EN 3-Alkoxymethyl-1-beuzylbenzimidazolium and 3-alkylthiomethyl-I-benzylbenzimidazolium chlorides have been synthesized from 1-benzylbenzimidazole and the corresponding chloromethylalkyl ethers or sulfidesź Thermal stability of the new compounds was studied by means of DTA and DTG measurements. The sam[...]
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Zeszyty Naukowe. Chemia / Politechnika Śląska
2001 z. 146 203-206
PL W pracy tej przeprowadzono badanie stabilności i degradacji termicznej polipropylenu oraz zawartych w nim zarodków krystalizacji. Różnicową Kalorymetrię Skaningową wykorzystano do symulacji warunków realnego procesu. Wyniki świadczą, że metoda DSC pozwala szybko ocenić jakość badanego tworzywa polim[...]
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Polish Journal of Chemistry
2001 Vol. 75, nr 10 1561-1568
EN Mesoporous, nanocrystalline zinc aluminate supports for high-temperature catalysts were synthesized by hydrothermal method. ZnAl2O4 support was impregnated by an incipient wetness technique using aqueous solution of H2PtCl6 to obtain platinum contents up to 1wt.%. The possible application of platinu[...]
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Materials Science Poland
2014 Vol. 32, No. 4 592--596
EN Tri-layer Au/Pd/Ni(P) films have been widely used as surface finish over the Cu pads in high-end packaging applications. It was found that a thin (Cu,Pd)6Sn5 IMC layer was beneficial in effective reducing inter-diffusion between a Cu substrate and a solder, and therefore the growth of the IMC layer [...]
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Archives of Acoustics
EN Investigations on the influence of the PbTiO3 content on the crystalline and domain structure of PZT-based four-component solid solutions have been performed. It has been shown that there is a close relation between the structure and temperature stability of the resonance frequency (f
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Chemik
2016 Vol. 70, nr 9 481--484
PL Porównano stabilność termiczną soli zbudowanych z aminokwasowego anionu i różnych organicznych kationów. Badania obejmowały ciecze jonowe z kationem: tetrabutyloamoniowym (TBA), tributylometyloamoniowym (tBMA), didecylodimetyloamoniowym (DDA), benzalkoniowym (BA), 2-hydroksyetylotrimetyloamoniowym ([...]
EN We compared the thermal stability of the salt composed of amino acid anions and various organic cations. Studies included cations such as: tetrabutylammonium (TBA), tributylmethylammonium (tBMA), didecylodimethylammonium (DDA), benzalkonium (BA), (2-hydroxyethyl)trimethylammonium (choline) (Chol) an[...]
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Polish Maritime Research
2019 nr 1 65--71
EN This article concerns the issue of thermal degradation process of fuels, important from the perspective of the operation of turbine engines, especially in the context of new fuels/bio-fuels and their implementation. The studies of the kerosenebased jet fuel (Jet A-1) and its blends with synthetic co[...]
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Polish Journal of Chemical Technology
2016 Vol. 18, nr 2 122--125
EN In this research work, thermal decomposition and kinetic analysis of pure and contaminated imidazolium based ionic liquid (IL) has been investigated. As thermal decomposition and kinetics evaluation plays a pivotal role in effective process design. Therefore, thermal stability of pure 1-butyl-2,3-di[...]
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Central European Journal of Energetic Materials
2017 Vol. 14, no. 1 217--232
EN Energetic salts of doubly-protonated 3-hydrazino-4-amino-1,2,4-triazole (2-4), and mono-protonated 3-hydrazino-4-amino-1,2,4-triazole (5-7), have been prepared in high yields from the corresponding oxygen-containing tetrazoles by (i) reaction of free acids and neutral 3-hydrazino-4-amino-1,2,4-triaz[...]
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Central European Journal of Energetic Materials
2016 Vol. 13, no. 4 871--881
EN A new insensitive explosive based on RDX and with Nitrocellulose (NC) as binder has been prepared using a flash vaporization process. Scanning electron microscopy was used to characterize the morphology and particle size of the resulting RDX-NC microspheres. X-ray photoelectron spectroscopy, Differe[...]
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Central European Journal of Energetic Materials
2015 Vol. 12, no. 4 831--840
EN A 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20) based mixed explosive was prepared by a spray drying method using CL-20 suspended in hexane containing EPDM rubber (ethylene-propylene-diene monomer), and made into a stable suspension. The samples were characterized by scanning el[...]
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Materials Science Poland
2019 Vol. 37, No. 4 563--569
EN A facile chemical approach was developed to fabricate microarrays (MAs) of Ag@polypyrrole nanocables (NCs). The strategy involved crosslinking the NCs by tetraethoxy silane (TEOS) under continuous pulse sonication without using a substrate. The material was characterized by scanning electron microsc[...]
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Archives of Metallurgy and Materials
2016 Vol. 61, iss. 3 1671--1676
EN The study of the thermal, wear and corrosion properties of developed nanocomposite coatings of Zn-Al2O3 and Zn-Cr2O3 was carried out. The coatings were produced by electrodeposition technique from chloride acidic bath. Laboratory tube furnace was used for [...]
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Physicochemical Problems of Mineral Processing
EN Structural, physicochemical and adsorption properties of two natural and one synthetic molecular sieves were investigated by various techniques: X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, low-temperature nitrogen adsorption and inverse gas chromatography. [...]
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