IDEA #2EZ6AK Technology Of Obtaining The Oxide Nanopowders With Specified Chemical,Phase And Granulometric Composition,Ceramics And Com_Posites On Their Base

TECHNOLOGY OOFF OBTAINING THE OXIDE NANOPOWDERS WITH SPECIFIED CHEMICAL,,PHASE AND GRANULOMETRIC COMPOSITION,,CERAMICS AND COM(cid:2)(cid:2)POSITES OONN THEIR BASE NANOTECHNOLOGY • APPLICATIONRESEARCH IINN THEFIELD OOFF NANOTECHNOLOGYMedicine (cid:2) bio(cid:2)compatible implants, stomatologies materials, filters, ion(cid:2)exchangers, UV(cid:2)protect, antibacterial coverages, capsules, test(cid:2)investigation. Environmental (cid:2) water purification and desalination Electronics (cid:2)insulators, dies for light guides, sensors Pic.1 Structure of 3Y ZrO2 powders Pic.2 Ceramic details Stage ooff Development:: Tested, available for demonstration, field tested. We are ready to decided users concrete tasks directed on nanopowders and ceramics articles manufacturing with sci(cid:2) entific investigations on the first stage and technology devel(cid:2) opment and sending powders and ceramics specimens for testing. Contact Details:: Material Science department Donetsk Institute of Physics & Engineering National Academy of Sciences of Ukraine Str. R. Luxemburg 72, Donetsk 83114, Ukraine Konstantinova Tetyana Evgenevna (062) 311(cid:2)11(cid:2)21 (062) 337(cid:2)75(cid:2)13 tatjana@konstant.fti.ac.donetsk.ua www.donphti.ac.donetsk.ua DescriptionTechnology of obtaining the oxide nanopowders with specified chemical, phase and granulometric composition based on wet(cid:2)chemicals methods with using MW radiation, pulse mag(cid:2) netic field and ultrasonic for prevention agglomeration. We obtain ZrO2 (0(cid:2)8% Y2O3) powders with predetermined par(cid:2) ticle size in range from 5 to 30 nm, narrow size distribution and specific surface area 140(cid:2)20 m2/g, respectively with soft agglomerates for ceramics, composites and solid oxide fuel cell (SOFC) applications. We obtained TiO2 (anatase) powders with predetermined parti(cid:2) cle size in range from 5 to 25 nm, narrow size distribution, specific surface area from 150 to 50 m2/g and soft agglomer(cid:2) ates for catalyst and UV(cid:2)protects and TiO2 (rutile) powders with size (30(cid:2)50 nm). We obtained LaSrMnO3 powders with narrow size distribution (12(cid:2)15 nm) and bimodal size distribution (40, 200 nm) for magnetic sensors and SOFC cathodes. And other oxide powders (PZT, Al2O3 based, for example). We have a pilot line for nanopowders obtaining. We obtain zirconia and/or alumina ceramics with small grains for wear(cid:2)resistant, structural, instrumental and functional applications. We obtain porous ceramics for medicine, cata(cid:2) lysts, filters and SOFC electrodes. We can obtain nanocom(cid:2) posites with metal, ceramics and polymer matrix. We obtain PZT ceramics. Innovative Aspect and Main Advantages:: Our technology in compare with other one ensure: • more narrow particle size distribution; • lower degree of agglomeration; • predetermined particle sizes in the range of 5 to 50 nm; • high homogenious component distribution; • low synthesis temperature (400 (cid:2) 700 C); • eliminating the mechanical grinding stage; • easy scale(cid:2)up in manufacturing; • low sintering temperature (1250 (cid:2) 1350 C) • high performance of ceramics including homogenity, stabil(cid:2) ity and durability; • lifetime of the ceramics mine pump plunger from zirconia nanopowders is 15(cid:2)20 times longer than usually • production of precise articles and films; • lower cost, environmentally friendly • lower energy consumption. Areas ooff Application:: Power Engineering (cid:2) SOFC, thermal stable coatings for turbine blades Mining Industry (cid:2) rods, plungers, injectors Chemical Industry (cid:2) parts of pumps (breechblocks, valves, plungers) injectors, milling balls, catalysts, sorbents, paints for polygraph Metallurgy (cid:2) refractory structural elements, cutting tools, guides, crucibles, paints INNOVATIVE TECHNOLOGY OPPORTUNITIES FROM THESTCU 161