{"?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-727BCIUJ/01db13f6-976f-4db9-bc93-ed852d66b021/HTML","dcterms:extent":"18 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-727BCIUJ/5202ee43-a1db-487a-9173-c3c91e17243a/PDF","dcterms:extent":"62 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-727BCIUJ/9e06f70c-d1e9-46ac-9901-7b16eaf9f2f7/TEXT","dcterms:extent":"17 KB"}],"edm:TimeSpan":{"@rdf:about":"1992-1999","edm:begin":{"@xml:lang":"en","#text":"1992"},"edm:end":{"@xml:lang":"en","#text":"1999"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:doc-727BCIUJ","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-QKUCN2BD"},{"@xml:lang":"sl","#text":"Kovine zlitine tehnologije"}],"dcterms:issued":"1998","dc:creator":"Kevorkijan, Varužan","dc:format":[{"@xml:lang":"sl","#text":"letnik:32"},{"@xml:lang":"sl","#text":"številka:6"},{"@xml:lang":"sl","#text":"str. 451-454"}],"dc:identifier":["ISSN:1318-0010","COBISSID:90026","URN:URN:NBN:SI:doc-727BCIUJ"],"dc:language":"en","dc:publisher":[{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},{"@xml:lang":"sl","#text":"Železarna Jesenice"},{"@xml:lang":"sl","#text":"Železarna Ravne"},{"@xml:lang":"sl","#text":"Železarna Štore"}],"dc:subject":[{"@xml:lang":"sl","#text":"aluminijeve zlitine"},{"@xml:lang":"en","#text":"aluminium alloy"},{"@xml:lang":"en","#text":"ceramic"},{"@xml:lang":"sl","#text":"energija"},{"@xml:lang":"sl","#text":"fizika površin"},{"@xml:lang":"sl","#text":"keramika"},{"@xml:lang":"sl","#text":"kompoziti"},{"@xml:lang":"sl","#text":"omakanje"},{"@rdf:resource":"http://www.wikidata.org/entity/Q45621"}],"dcterms:temporal":{"@rdf:resource":"1992-1999"},"dc:title":{"@xml:lang":"sl","#text":"Reactive wetting between molten Al alloy and ceramic particles| Reakcijsko omakanje keramičnih delcev z raztaljenimi aluminijevimi zlitinami|"},"dc:description":[{"@xml:lang":"sl","#text":"In this paper, the linear time dependence and the exponential temperature of the volume fraction of ceramic reinforcement immersed in the matrix was addressed theoretically. Applying the same theoretical approach to the dynamics of the reactive infiltration of molten aluminum into porous ceramic preform, the parabolic relation between the infiltration length and time as well as the exponential relation between the infiltration length and temperature were also derived. It was demonstrated that the rate of reactive wetting and the dynamics of reactive infiltration of molten aluminum into porous ceramic perform depend on the exergonic nature of the interfacial reaction, the kinetis of the interfacial chemistry involved and the efficiency of the system in using the energy released by the interfacial chemical reaction for the formation of new surface in the melt"},{"@xml:lang":"sl","#text":"V članku je predstavljen model reakcijskega omakanja keramičnih delcev v raztaljeni aluminijevi zlitini. Pokazali smo, da je hitrost omakanja delcev s talino odvisna od termodinamskih značilnosti kemijske reakcije na fazni meji keramika-talina, od njene kinetike ter od energijskega izkoristka, oz. od zmogljivosti sistema, da uporabi energijo, sproščeno s kemijsko reakcijo, za nastanek nove površine med keramičnimi delci in talino. Teoretično smo napovedali, da je prostorninski delež keramičnih delcev v matrici linearno odvisen od časa omakanja ter da eksponentno narašča s povečevanjem temperature taline. Pokazali smo tudi, da hitrost omakanja keramičnih delcev s talino ni na splošno premo sorazmerna s hitrostjo kemijske reakcije na fazni meji keramika-talina, saj ima hitro sproščanje energije kemijske reakcije običajno za posledico nizek energijski izkoristek. V drugem delu članka smo, na podoben način, teoretično modelirali proces reakcijske infiltracije poroznega keramičnega skeleta z raztaljeno aluminijevo zlitino. Potrdili smo, da obstaja parabolična odvisnost med dolžino infiltriranega dela vzorca in časom. Hkrati nov model napoveduje, da na hitrost infiltracije vplivajo še kinetika in termodinamske lastnosti kemijske reakcije na meji med keramiko in kovino. Iz modela je jasno, da ima energijski izkoristek kemijske reakcije na meji med keramiko in kovino tudi v tem primeru pomembno vlogo, še posebej, ko obstaja zahteva po čim hitrejši infiltraciji vzorcev"},{"@xml:lang":"sl","#text":"Nadaljuje se kot: Materiali in tehnologije"}],"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-727BCIUJ","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:doc-727BCIUJ"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:doc-727BCIUJ/5202ee43-a1db-487a-9173-c3c91e17243a/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-727BCIUJ/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:doc-727BCIUJ"}}}}