{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-AJ84RGAQ/7b12d19f-29e2-4936-bb75-d9fa109ea225/PDF","dcterms:extent":"679 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-AJ84RGAQ/232aa037-7a8c-4231-92fc-2d22f537409a/TEXT","dcterms:extent":"16 KB"}],"edm:TimeSpan":{"@rdf:about":"2000-2024","edm:begin":{"@xml:lang":"en","#text":"2000"},"edm:end":{"@xml:lang":"en","#text":"2024"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:DOC-AJ84RGAQ","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/urn:nbn:si:spr-ihg6vo21"},{"@xml:lang":"sl","#text":"Materiali in tehnologije"}],"dcterms:issued":"2013","dc:creator":["Hunyek, Anuchit","Sirisathitkul, Chitnarong"],"dc:format":[{"@xml:lang":"sl","#text":"letnik:47"},{"@xml:lang":"sl","#text":"številka:6"},{"@xml:lang":"sl","#text":"str. 845-848"}],"dc:identifier":["COBISSID:1029802","ISSN:1580-2949","URN:URN:NBN:SI:doc-AJ84RGAQ"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"sl","#text":"kobaltov ferit"},{"@xml:lang":"sl","#text":"magnetne lastnosti"},{"@xml:lang":"sl","#text":"sol-gel"},{"@xml:lang":"sl","#text":"žarjenje"},{"@rdf:resource":"http://www.wikidata.org/entity/Q48350"}],"dcterms:temporal":{"@rdf:resource":"2000-2024"},"dc:title":{"@xml:lang":"sl","#text":"Variation in magnetic properties of sol-gel-synthesized cobalt ferrites| Spreminjanje magnetnih lastnosti kobaltovih feritov, sintetiziranih po sol-gel postopku|"},"dc:description":[{"@xml:lang":"sl","#text":"Single-phase cobalt ferrite (CoFe2O4) was synthesized with a sol-gel reaction between 10.59 g of cobalt nitrate and 29.40 g of iron nitrate using 480 mL of 10 % polyvinyl alcohol (PVA) in water. Their magnetic squareness and coercive field were slightly reduced with the increase in the annealing at 800 °C from 2 h to 6 h. To examine the reproducibility of ferrite products of the PVA sol-gel method, the synthetic condition was repeated 28 times. After annealing for 4 h, CoFe2O4 samples from different batches exhibit variations in the magnetic properties. The coercive field has a large distribution becauseof its sensitivity to the particle agglomeration, whereas the squareness fluctuates in a narrower range from 0.22 to 0.29. Since the squareness is the ratio of the remanence to the saturation magnetization, the particle agglomeration tends to increase both values while keeping this ratio rather unchanged"},{"@xml:lang":"sl","#text":"Enofazni kobaltov ferit (CoFe2O4) je bil sintetiziran s sol-gel reakcijo med 10,59 g kobaltovega nitrata in 29,40 g železovega nitrata z uporabo 480 mL 10-odstotne raztopine polivinil alkohola (PVA) v vodi. Njihova četverokotna magnetna oblika in koercitivno polje sta se rahlo zmanjšala s podaljšanjem žarjenja na 800 °C iz 2 h na 6 h. Da bi preiskali ponovljivost feritnih proizvodov iz PVA sol-gel metode, je bila sinteza ponovljena 28-krat. Po žarjenju 4 h so kazali vzorci CoFe2O4 iz različnih serij razliko v magnetnih lastnostih. Koercitivno polje kaže velik raztros zaradi občutljivosti za aglomeracijo delcev, medtem ko se četverokotnost oblike spreminja v ožjem področju od 0,22 do 0,29. Ker je četverokotnost razmerje med remanenco in nasičeno magnetizacijo, aglomeracija delcev povečuje obe vrednosti, medtem ko razmerje ostaja skoraj nespremenjeno"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:DOC-AJ84RGAQ","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-AJ84RGAQ"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-AJ84RGAQ/7b12d19f-29e2-4936-bb75-d9fa109ea225/PDF"},"edm:rights":{"@rdf:resource":"http://rightsstatements.org/vocab/InC/1.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:DOC-AJ84RGAQ/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-AJ84RGAQ"}}}}