@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00096665v1> a dcat:Dataset ;
    dct:description """
              Doping Bi4V1.8Cu0.2O10.7 with niobium has led to the formation of the Bi4V1.8Cu0.2−xNbxO10.7+3x/2 solid solution. X-ray diffraction and thermal analysis have shown that only the compound with x=0.05 presents a tetragonal symmetry with a γ′ polymorph while the other compositions are of β polymorph. The influence of sintering temperature on the microstructure of the samples was investigated by the scanning electron microscopy (SEM). The ceramics sintered at temperatures higher than 820 °C present micro-craks. The evolution of the electrical conductivity with temperature and the degree of substitution has been investigated by impedance spectroscopy. Among all compositions studied the sample with x=0.05 presents the highest value of the conductivity.
            """ ;
    dct:identifier "hal-00096665" ;
    dct:issued "2026-05-05T20:19:14.154169"^^xsd:dateTime ;
    dct:language "en" ;
    dct:modified "2026-05-05T20:19:14.154173"^^xsd:dateTime ;
    dct:publisher <https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> ;
    dct:title "Effect of Niobium doping on structural, thermal, sintering and electrical properties of Bi4V1.8Cu0.2O10.7" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "CCSD" ] ;
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    dcat:keyword "aurivillius-phases",
        "bimevox-materials",
        "chimmatechemical-sciencesmaterial-chemistry",
        "infoeu-reposemanticsarticle",
        "ionic-conductors",
        "journal-articles",
        "solid-electrolyte" ;
    dcat:landingPage <ISSN:%200022-4596> .

<ISSN:%200022-4596> a foaf:Document .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00096665v1/resource/c867bd6b-6df8-4081-bb7e-9130449b081f> a dcat:Distribution ;
    dct:format "HTML" ;
    dct:issued "2026-05-05T20:19:14.184677"^^xsd:dateTime ;
    dct:modified "2026-05-05T20:19:14.145320"^^xsd:dateTime ;
    dct:title "Effect of Niobium doping on structural, thermal, sintering and electrical properties of Bi4V1.8Cu0.2O10.7" ;
    dcat:accessURL <https://hal.science/hal-00096665> .

<https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> a foaf:Agent ;
    foaf:name "test_moissonnage_selune" .