{"?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-4IQ0ZXNY/f5a0c883-8f23-4c4c-9ec1-559e8f7f22fc/HTML","dcterms:extent":"32 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-4IQ0ZXNY/b33c8f84-3c26-4b9f-b295-e4f8081a84a4/PDF","dcterms:extent":"1458 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-4IQ0ZXNY/92ae2146-59e8-4740-9b3c-18b3d8e805dd/TEXT","dcterms:extent":"28 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-4IQ0ZXNY","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/urn:nbn:si:spr-ihg6vo21"},{"@xml:lang":"sl","#text":"Materiali in tehnologije"}],"dcterms:issued":"2009","dc:creator":"Marinšek, Marjan","dc:format":[{"@xml:lang":"sl","#text":"številka:2"},{"@xml:lang":"sl","#text":"letnik:43"},{"@xml:lang":"sl","#text":"str. 79-84"}],"dc:identifier":["ISSN:1580-2949","COBISSID:725418","URN:URN:NBN:SI:doc-4IQ0ZXNY"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"en","#text":"ceramic"},{"@xml:lang":"sl","#text":"električna prevodnost"},{"@xml:lang":"sl","#text":"keramika"},{"@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":"Electrical conductivity of sintered LSM ceramics| Električna prevodnost sintrane LSM-keramike|"},"dc:description":[{"@xml:lang":"sl","#text":"The carbonate co-precipitation route was applied for batch Lasub{0.85}Srsub{0.15}MnOsub{3} (LSM) preparation as an alternative synthesis method to the solid-state reaction. Because co-precipitation is a wet-chemistry solution process, the maximum LSM homogeneity was achieved. The microstructural characteristics, such as the porosity and grain size of the prepared LSM elements, were controlled by subjecting the green bodies to various sintering conditions. The LSM sintered bodies with relative sintered densities as high as 95 % were prepared at sintering temperatures not higher than 1100 °C. The microstructure of the prepared LSM was characterized by digital online image analysis and the microstructural parameters were determined for the ceramic phase as well as for the porosity. The electrical characteristics of the sintered LSM elements were, for the first time in the literature, described with respect to a model for the sine-wave approximation of the conductivity change for porous materials. The observed results of the relative conductivity sigma/sigmasub{0} vs. the relative density rho/rho{0} dependence were essentially consistent with the sine-wave approximation. As an absolute value, the highests sigma = 65 S/cm at 800 °C was measured for a sample with rho/rho{0} = 99.58 %"},{"@xml:lang":"sl","#text":"Laspodaj{0,85}Srspodaj{0,15}MnOspodaj{3} (LSM) je bil pripravljen po metodi karbonatne koprecipitacije kot alternativa metodi reakcije v trdnem. Z uporabo koprecipitacijske metode, kot ene izmed tehnik mokre kemije, nam je uspelo pripraviti zelo homogene LSM-prahove. Mikrostrukturne lastnosti končnih, pripravljenih LSM-elementov, kot sta poroznost in velikost zrn, smo spreminjali s sintranjem LSM-surovcev pri različnih pogojih. Uspelo nam je pripraviti sintrane LSM-elemente z relativno sintrano gostoto 95 % pri temperaturtah sintranja, ki niso bile višje kot 1100 °C. Bolj podrobna karakterizacija mikrostrukture sintranih elementov je bila opravljena z analizo digitalnih slik. Električne lastnosti sintranih LSM-elementov smo pojasnili s teoretičnim modelom vrtenine za opis električne prevodnosti porozne keramike, kar je tudi prvi tovrsten opis LSM-keramike. Rezultati določitve relativne prevodnosti sigma/sigmaspodaj{0} LSM-keramike kot funkcije njene relativne gostote ro/rospodaj{0} relativno dobro sledijo predlaganemu teoretičnemu modelu. Najvišjo absolutno izmerjeno vrednost električne prevodnosti sigma = 65 S/cm pri 800 °C je imel vzorec z relativno gostoto ro/rospodaj{0} = 99,58 %"}],"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-4IQ0ZXNY","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-4IQ0ZXNY"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-4IQ0ZXNY/b33c8f84-3c26-4b9f-b295-e4f8081a84a4/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-4IQ0ZXNY/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-4IQ0ZXNY"}}}}