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Приказ резултата 591-600 од 608
Advanced damage resistance monitoring procedure on the composite materials? surface-exposed to cavitation testing
(Wear, 2021)
Morphology and development of surface damage of alumina-based materials, resulting from cavitation erosion is studied in this paper. Two series of samples were prepared: samples without fibers and those with the addition ...
Enhancing properties of concrete by addition of fly ash from a thermal power plant for application in geothermal systems / Poboljšanje svojstava betona dodatkom letećeg pepela iz termoelektrane za primenu u geotermalnim sistemima
(Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS, 2020)
Electric power in Serbia is predominantly provided by thermal power plants. All of eleven existing thermal power plants in Serbia use coal, mainly lignite in the electricity production process thus generating about 6 million ...
Procedure of solidification and stabilization of heavy metals from mine waste waters adsorbed on fly ash pellets into enviromentally acceptable building material / Postupak solidifkacije i stabilizacije teških metala iz otpadnih rudničkih voda adsorbovanih na peletama u ekološki prihvatljiv građevinski materijal pepela
(Zavod za intelektualnu svojinu Republike Srbije, 2020)
Stabilization of heavy metals, especially copper, from acidic mine wastewater is performed by their solidification into sulfur polymer concrete as an environmentally acceptable building material. The procedure is carried ...
Thermovision monitoring of concrete heat of hydration / Termovizijski monitoring toplote vlaženja betona
(Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS, 2020)
Usled hemijske reakcije Portland cementa, koja se uvek javlja u betonu prilikom očvršćavanja, izvesna količina toplote se razvija. Ova toplota mora biti kvantifikovana, obzirom da ona može oštetiti beton ili pomoći mu, ...
Nova metoda za sintezu keramičkih materijala i nedestruktivnu karakterizaciju površinskih oštećenja usled izlaganja kavitaciji
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2020)
Ovim istraživanjem ustanovljena je nova metoda karakterizacije površinskih oštećenja vatrostalnih keramičkih materijala primenom alata analize slike i prepoznavanja oblika. Eksperimentalni rezultati omogućili su da se ...
Microstructure and cavitation erosion performance of nickel-Inconel 718 composite coatings produced with cold spray
(Elsevier Science Sa, Lausanne, 2020)
The cold spray technique was employed in this study to produce pure nickel (Ni) and nickel-Inconel 718 powder deposits on duplex stainless steel substrates. High quality coatings were manufactured using nitrogen as the ...
Valorization of Fly Ash from a Thermal Power Plant for Producing High-Performance Self-Compacting Concrete
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2020)
This study analyzes the feasibility of valorizing industrial by-product, fly ash from a thermal power plant as a partial replacement of mineral filler-limestone for the production of self-compacting concrete (SCC). Three ...
Principal component analysis of morphological descriptors for monitoring surface defects induced by thermal shock
(Elsevier Ltd, 2021)
Pattern recognition techniques are applied to various morphological descriptors to monitor the formation and propagation of surface defects of materials subjected to thermal shock. A low-cement high-alumina castable was ...
Structure prediction, high pressure effect and properties investigation of superhard B6O
(IOP Publishing Ltd, Bristol, 2020)
Ab initio data mining approach has been used in order to investigate B6O system and discover new possible modifications, besides experimentally known R-3m (alpha-B6O) structure and theoretically predicted Cmcm (beta-B6O) ...
Improvement in cavitation resistance of poly (vinyl butyral) composite films with silica nanoparticles: A technical note
(Polymers & Polymer Composites, 2021)
In this study poly (vinyl butyral)/silica (PVB/SiO2) composite films were subjected to the cavitation process. The experiments were carried out with a 10 wt.% PVB solution in ethanol. Silica nanoparticles were added into ...