{"?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-LHNKEXLP/2ef2b06b-7e15-48e1-85e4-044c1fe82dad/HTML","dcterms:extent":"16 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-LHNKEXLP/185cfd84-a629-4940-8d0a-f00ef6391a32/PDF","dcterms:extent":"908 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-LHNKEXLP/542a8bd8-4218-47a7-a371-03fe58a89fb3/TEXT","dcterms:extent":"11 KB"}],"edm:TimeSpan":{"@rdf:about":"2000-2026","edm:begin":{"@xml:lang":"en","#text":"2000"},"edm:end":{"@xml:lang":"en","#text":"2026"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:DOC-LHNKEXLP","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":"Ipek, Mediha","dc:format":[{"@xml:lang":"sl","#text":"številka:1"},{"@xml:lang":"sl","#text":"letnik:47"},{"@xml:lang":"sl","#text":"str. 111-114"}],"dc:identifier":["ISSN:1580-2949","COBISSID:961706","URN:URN:NBN:SI:doc-LHNKEXLP"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"sl","#text":"bakrove zlitine"},{"@xml:lang":"sl","#text":"električna prevodnost"},{"@xml:lang":"sl","#text":"prahovi"},{"@xml:lang":"sl","#text":"prašna metalurgija"},{"@xml:lang":"sl","#text":"sintranje"},{"@xml:lang":"sl","#text":"trdota"},{"@xml:lang":"sl","#text":"utrjevanje s staranjem"},{"@rdf:resource":"http://www.wikidata.org/entity/Q844613"}],"dcterms:temporal":{"@rdf:resource":"2000-2026"},"dc:title":{"@xml:lang":"sl","#text":"Characterization of an Cu-Cr-Zr alloy synthesized with the powder-metallurgy technique| Karakterizacija zlitine Cu-Cr-Zr, sintetizirane s tehniko prašne metalurgije|"},"dc:description":[{"@xml:lang":"sl","#text":"A Cu-1.5 % Cr-0.5 % Zr alloy was prepared with the powder-metallurgy (PM) method. Cu-Cr-Zr powders were pressed under 390 MPa of uniaxial compression and sintered at 1000 °C for 2 h. After the holding time, the samples were immediately taken out of the furnace and pressed at 850 MPa. The sintered samples were solution-treated at 1000 °C for 15 min and water quenched. Then they were deformed by 20 % at room temperature and aged at 470 °C for (2, 4, 6 and 8) h. A SEM investigation revealed that the Cr and Zr particles having a limited solubility in Cu distributed homogeneously in the copper matrix. An XRD analysis showed that each sample (sintered and aged at 470 °C for different times) has the same phases: copper and trace Crsub{2}Osub3. The relative density of the sinter-pressed sample increased from 92 % to 96 % due to cold deformation. The microhardness of the samples ranged from 77 HV for the solution-treated and water-quenched sample to 116 HV for the aged sample, and the electrical conductivity of the samples increased from 76 % IACS for the sinter-pressed sample to 87 % IACS for the sample aged for 8 h"},{"@xml:lang":"sl","#text":"Zlitina Cu- 1,5 % Cr- 0,5 % Zr je bila izdelana po metodi prašne metalurgije (PM). Prahovi Cu-Cr-Zr so bili enoosno stisnjeni s 390 MPa in 2 h sintrani na temperaturi 1000 °C. Potem so bili vzorci vzeti iz peči in stisnjeni z 850 MPa. Sintrani vzorci so bili raztopno žarjeni 15 min na temperaturi 1000 °C in ohlajeni v vodi. Nato so bili deformirani za 20 % pri sobni temperaturi in starani (2, 4, 6 in 8) h na temperaturi 470 °C. Preiskava s SEM je odkrila, da imajo delci Cr in Zr omejeno topnost v Cu in da so enakomerno razporejeni v osnovi iz bakra. Rentgenska analiza (XRD) je pokazala, da ima vsak vzorec (sintran in različno dolgo staran na 470 °C) enake faze: baker in sledove Crspodaj{2}Ospodaj3. Relativna gostota sintranega in stisnjenega vzorca je s hladno deformacijo narasla iz 92 % na 96 %. Mikrotrdota vzorcev je bila v območju od 77 HV za raztopno žarjen in v vodi ohlajen vzorec ter do 116 HV za staran vzorec. Električna prevodnost sintranega in stisnjenega vzorca je bila 76 % IACS in je narasla na 87 % IACS pri vzorcu, staranem 8 h"}],"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-LHNKEXLP","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-LHNKEXLP"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-LHNKEXLP/185cfd84-a629-4940-8d0a-f00ef6391a32/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-LHNKEXLP/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-LHNKEXLP"}}}}