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Publications (29)
Soil conditioners to fertilize, improve soil structure and support the phytostabilization of trace metal elements (TMEs) are being used more and more frequently. One of the options are agrosinters – slow-release ceramic fertilizers consisting mainly of SiO2, CaO, P2O5 and K2O, with an alkaline pH and high impact strength. The effect of two differen...
Przeprowadzono próby filtracji stopionego staliwa z zastosowaniem dwóch rodzajów nowoopracowanych filtrów o budowie piankowej, w których fazą wiążącą cząstki ceramiczne był węgiel. W jednym z nich źródłem węgla był grafit płatkowy i pak węglowy, natomiast w drugim grafit zastąpiono tańszym prekursorem węgla. Nowoopracowacowane filtry wypalono w tem...
Calcium sulphoaluminate cement (CSA) is characterized by a different chemical and mineralogical composition than common cements based mainly on Portland clinker. Its main component is ye’elimite—Ca4(AlO2)6SO4. This cement is characterized by a shorter setting time and a dynamic increase in strength in the early aging process. Currently, CSA cements...
The article presents the results of research aimed at assessing the possibility to use the waste sludge produced in the aluminium anodizing process as an additive to ceramic masses used in the manufacture of building bricks. The physicochemical characteristics of the sludge were determined and the influence of adding the waste to the raw material m...
In 2014 we finished research works involved in the development of a technology for manufacturing innovative ceramic-carbon foam filters for molten metal alloys filtration, which were financed by the National Centre for Research and Development (NCBiR) from INNOTECH programme resources. A batch of the filters produced in this technology was tested i...
Artykuł dotyczy prac nad otrzymaniem tworzywa z SiC na drodze odlewania żelowego (ang. gel-casting) w oparciu o zawiesinę, w której dyspergatorem był zol krzemionkowy. Bazując na drobnych frakcjach SiC, uzyskano tworzywo drobnoporowate o wysokiej po-rowatości otwartej. Po wypaleniu w 600 °C w atmosferze powietrza ceramika charakteryzowała się wytrz...
Streszczenie W roku 2014 zakończono prace badawcze nad opracowaniem technologii produkcji innowacyjnych, piankowych filtrów ceramiczno-węglowych do filtracji ciekłych stopów metali, finansowane przez NCBiR ze środków programu InnoTech. Partia badawcza filtrów wykonanych wg tej technologii została sprawdzona w praktyce w krajowych odlewniach staliwa...
Streszczenie Artykuł dotyczy prac nad otrzymaniem tworzywa z SiC na drodze odlewania żelowego (ang. gel-casting) w oparciu o zawiesinę, w której dyspergatorem był zol krzemionkowy. Bazując na drobnych frakcjach SiC, uzyskano tworzywo drobnoporowate o wysokiej po-rowatości otwartej. Po wypaleniu w 600 °C w atmosferze powietrza ceramika charakteryzow...
Preliminary tests aimed at obtaining a cellular SiC/iron alloy composite with a spatial structure of mutually intersecting skeletons, using a porous ceramic preform have been conducted. The possibility of obtaining such a composite joint using a SiC material with an oxynitride bonding and grey cast iron with flake graphite has been confirmed. Porou...
Gelcasting isagoodmethodforobtainingceramiccomponentswithapre-defined shape.Fromthepointofviewofthecourseoftheceramic
casting process,averyimportantissueistheso-calledidletimeorgelationtimewhosemeasurementisusuallybasedondeterminingchangesin
ceramic slurryviscositybymeansofrheometers.However,searchesarebeingcontinuedto find methodswhichwouldhavethe...
The paper presents compression test results of self-made open-cell aluminium which was produced by the investment casting method. Two groups of samples were studied: prototype samples containing some structural imperfections (apparent density 0.485 g/cm³) and regular samples without visible mistakes (apparent density 0.312 g/cm³). Performed experim...
The aim of the undertaken work was to obtain an Al 2 O 3-based foam ceramic product during the manufacture of which the toxic acrylamides are replaced by a set of hydrogen-soluble monomers that do not contain nitrogen atoms in their particle: 2-hydroxy-ethyl acrylate and poly(ethylene glycol) diacrylate. The type and amount of additives (dispersant...
Due to their mechanical properties, high surface area, resistance to chemical corrosion and stability at high temperatures, foam ceramic products made by the gelcasting method are becoming widely applied in the industry. A characteristic feature of these products is the presence of spherical macropores in their structure, which reach diameters rang...
Ferro-Term Sp. z o.o. wraz z Instytutem Ceramiki i Materiałów Budowlanych, Oddział Materiałów Ogniotrwałych w Gliwicach, Instytutem
Odlewnictwa w Krakowie oraz Instytutem Chemicznej Przeróbki Węgla w Zabrzu, opracował technologię produkcji innowacyjnych,
piankowych fi ltrów ceramiczno-węglowych dla odlewnictwa. Nowoopracowane fi ltry mogą zastąpić...
Trials of cast steel filtration using two types of newly-developed foam filters in which carbon was the phase binding ceramic particles have been conducted. In one of the filters the source of carbon was flake graphite and coal-tar pitch, while in the other one graphite was replaced by a cheaper carbon precursor. The newly-developed filters are fir...
Extremely intense development of civilization requires from foundry casting technologies very high quality and not expensive castings. In the foundries, there are many treatments that allow increasing of the final properties of produced castings such as refining, modification, heat treatment, etc. One of the methods of increasing the quality of the...
Filtration of liquid casting alloys is used in casting technologies for long time. The large quantity of available casting filters allows using them depending on casting technology, dimensions of casting and used alloys. Technological progress of material science allows of using new materials in production of ceramic filters. In this article the Co...
This study is a continuation of investigations on the graphite incorporation to castable refractory concretes used for linings of blast furnace troughs and the effects of graphite on properties of the castables. In the Part I, delivered at the Polska Ceramika 2008 Conference, the results of investigations were presented on graphite processing, allo...
In the conducted investigations, aluminium dross, i.e. solid waste formed in the production and recycling of aluminium, was used as one of the basic raw materials to obtain a material characterised by insulating and exothermic properties, applied to heat riser heads in the process of iron or steel casting. The product was obtained by filtrating the...
