{"?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-CZDXBIYN/7ead7437-1934-4c8b-bdd2-cd5cb5fbe349/HTML","dcterms:extent":"20 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-CZDXBIYN/7f19adf9-18ac-47bb-a13c-452a207f9539/PDF","dcterms:extent":"1042 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-CZDXBIYN/4e8b3a05-5b84-44cd-bae8-945d0677aba1/TEXT","dcterms:extent":"19 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-CZDXBIYN","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":["Jevnikar, Peter","Oblak, Čedomir"],"dc:contributor":"Kosmač, Tomaž","dc:format":[{"@xml:lang":"sl","#text":"letnik:41"},{"@xml:lang":"sl","#text":"številka:5"},{"@xml:lang":"sl","#text":"str. 237-241"}],"dc:identifier":["ISSN:1580-2949","COBISSID:21172263","URN:URN:NBN:SI:doc-CZDXBIYN"],"dc:language":["en","sl"],"dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"sl","#text":"brušenje"},{"@xml:lang":"sl","#text":"dentalne zlitine"},{"@xml:lang":"sl","#text":"mehanske lastnosti"}],"dcterms:temporal":{"@rdf:resource":"2000-2024"},"dc:title":{"@xml:lang":"sl","#text":"The fracture and fatigue of surface-treated tetragonal zirconia (Y-TZP) dental ceramics| Prelom in utrujenost površinsko obdelane tetragonalne (Y-TZP) dentalne keramike|"},"dc:description":[{"@xml:lang":"sl","#text":"The effects of dental grinding and sandblasting on the biaxial flexural strength of Y-TZP ceramics containing the mass fraction of 3 % yttria were evaluated. Dental grinding at high rotation speed lowers the mean strength under static loading and the survival rate under cyclic loading. Sandblasting, in contrast, may provide a powerful tool for surface strengthening also resulting in a substantially higher survival rate under cyclic loading. Fractographic examination of ground specimens revealed that failure originated from radial cracks extending up to 50 m from the grinding groves into the bulk of the material. However, no evidence of grinding-induced surface cracks could be obtained by SEM analysis of the ground samples, prepared by a standard bonded-interface technique. Sandblasting, in contrast, introduces lateral cracks, which are not detrimental to the strength of Y-TZP ceramics. The \"medical-grade\" Y-TZP ceramics also containing 0.25 % of dispersed alumina used in this work exhibited full stability under hydrothermal conditions"},{"@xml:lang":"sl","#text":"Ocenjen je bil vpliv zobnih brušenj in peskanja na dvoosno upogibno trdnost keramike Y-TZP z molskim deležem itrijevega oksida 3 %. Zobno brušenje pri veliki hitrosti vrtenja zmanjša trdnost pri statični obremenitvi in trajnostno dobo pri ciklični obremenitvi. Nasprotno pa je peskanje lahko učinkovit način za utrditev površine, ki pomembno poveča tudi trajnostno dobo pri ciklični obremenitvi. Fraktografsko opazovanje brušenih preizkusancev je pokazalo, da se je prelom začel iz radialnih razpok v globino do 50 m iz dna brusilnih žlebov v notranjost preizkušanca, čeprav pri SEM pregledu ni bila odkrita nobena površinska brusilna razpoka na brušenih preizkušancih, pripravljenih po standardni površinsko vezani tehniki. Peskanje nasprotno od brušenja ustvari lateralne razpoke, ki ne vplivajo na trdnost keramike Y-TZP. Tetragonalna (Y-TZP) keramika za medicinske namene, ki vsebuje tudi 0,25 % dispergiranega aluminijevega oksida in je bila uporabljena v tem delu, je bila popolnoma stabilna v hidrotermalnih razmerah"}],"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-CZDXBIYN","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-CZDXBIYN"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-CZDXBIYN/7f19adf9-18ac-47bb-a13c-452a207f9539/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-CZDXBIYN/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-CZDXBIYN"}}}}