{"?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-A0ICAPFI/5c0bc8e7-3431-4235-9704-ebaae5693736/HTML","dcterms:extent":"23 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-A0ICAPFI/600339f9-f9b8-4d3c-9ce2-677ade09a0f0/PDF","dcterms:extent":"3035 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-A0ICAPFI/e420ab0d-2aba-4922-b615-a5cde847918f/TEXT","dcterms:extent":"21 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-A0ICAPFI","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/urn:nbn:si:spr-ihg6vo21"},{"@xml:lang":"sl","#text":"Materiali in tehnologije"}],"dcterms:issued":"2007","dc:creator":["Maček, Jadran","Marinšek, Marjan","Razpotnik, Tanja","Zupan, Klementina"],"dc:format":[{"@xml:lang":"sl","#text":"številka:2"},{"@xml:lang":"sl","#text":"letnik:41"},{"@xml:lang":"sl","#text":"6 strani"},{"@xml:lang":"sl","#text":"str. 85-90"}],"dc:identifier":["ISSN:1580-2949","COBISSID:603562","URN:URN:NBN:SI:doc-A0ICAPFI"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"sl","#text":"električna prevodnost"},{"@xml:lang":"sl","#text":"katoda"},{"@xml:lang":"sl","#text":"koprecipitacija"},{"@xml:lang":"sl","#text":"lantanov stroncijev manganit"},{"@xml:lang":"sl","#text":"mikrostruktura"},{"@rdf:resource":"http://www.wikidata.org/entity/Q4593291"}],"dcterms:temporal":{"@rdf:resource":"2000-2024"},"dc:title":{"@xml:lang":"sl","#text":"A co-precipitation procedure for the synthesis of LSM material| Sobarjanje LSM za pripravo katodnih materialov za gorivne celice|"},"dc:description":[{"@xml:lang":"sl","#text":"Lanthanum manganite substituted with strontium is a strong candidate for use as a mixed conductor at the cathode site in solid-oxide fuel-cell systems. In the present work a co-precipitation method for the preparation of LSM is described and some material properties are reported. Since the co-precipitation involved calcination at 1000 °C and subsequent sintering, the crystalline phase development and the material homogeneity were followed by X-ray powder diffraction. It was found that no secondary crystalline phases were present in the system when the samples were thermally treated up to 1200 °C. The sintering behaviour of the calcined powders and their density evolution are also reported. Relatively dense bodies were prepared after thermal treatment at 1200 °C for 2 hours. The electrical characteristics of the material were determined from screen-printed LSM sintered layers. The electrical conductivity of the screen-printed layers increased with the sintering temperature due to an additional densification effect. Porous LSM bodies were prepared by methyl cellulose admixing as a pore-former"},{"@xml:lang":"sl","#text":"Najpogosteje uporabljan katodni material v visokotemperaturni izvedbi gorivnih celic (SOFC) je lantanov manganit, dopiran s stroncijem (LSM). LSM s sestavo Laspodaj{0,85}Srspodaj{0,15}MnOspodaj{3-d} smo priprav!li z novo metodo soobarjanja iz raztopine karbonatov. Oborino smo po filtraciji in spiranju sušili pri 110 °C in nato kalcinirali pri 1000 °C. Po kalcinaciji pri različnih temperaturah in po sintranju smo prahove analizirali z rentgensko praškovno analizo. Materialiso po sintranju vsebovali le perovskitno kristalno obliko lantanovega manganita. Parametre sintranja prahov LSM po kalcinaciji pri 1000 °C smo določili s segrevalnim mikroskopom. Vzorce LSM z dodatkom tvorca por in brez njega smo po sintranju analizirali z elektronsko mikroskopijo. Električne karakteristike tiskanih plasti LSM smo določili s štiritočkovno metodo. Specifična električna prevodnost pripravljenih plasti LSM je primerljiva z literaturnimi podatki za materiale LSM, ki so bili pripravljeni po kalcinacijskem postopku"}],"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-A0ICAPFI","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-A0ICAPFI"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-A0ICAPFI/600339f9-f9b8-4d3c-9ce2-677ade09a0f0/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-A0ICAPFI/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-A0ICAPFI"}}}}