High-energy ball milling and spark plasma sintering of molybdenum - lanthanum oxide (Mo-La2O3) and molybdenum - lanthanum zirconate (Mo-La2Zr2O7) composite powders

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dc.contributor.authorČelko, Ladislavcs
dc.contributor.authorTkachenko, Serhiics
dc.contributor.authorCasas Luna, Marianocs
dc.contributor.authorDyčková, Luciecs
dc.contributor.authorBednaříková, Vendulacs
dc.contributor.authorRemešová, Michaelacs
dc.contributor.authorKomarov, Pavelcs
dc.contributor.authorDeák, Andréacs
dc.contributor.authorBaláž, Matejcs
dc.contributor.authorCrawford, Deborah E.cs
dc.contributor.authorDíaz de la Torre, Sebastiancs
dc.contributor.authorBodoki, Edecs
dc.contributor.authorCihlář, Jaroslavcs
dc.coverage.issue1cs
dc.coverage.volume102cs
dc.date.accessioned2022-02-01T11:51:51Z
dc.date.available2022-02-01T11:51:51Z
dc.date.issued2022-01-01cs
dc.description.abstractThe current study is focused on the preparation of Mo-10 vol%La2O3 and Mo-10 vol% La2Zr2O7 composite powders via low- and high-energy ball milling approaches as potential candidates for near-future high-temperature structural applications. The mechanical milling parameters play a critical role on the final powder's microstructure. When using the high-energy milling mode (using 800 rpm, ball-to-powder ratio (BPR) 100: 6), the homogeneous powder agglomerates are formed with refined laminated microstructure and more uniform ceramic phase distribution in both Mo-La2O3 and Mo-La2Zr2O7 systems compared to the powders produced by means of the low-energy milling mode (using 350 rpm, BPR 100: 6), where inhomogeneous powder mixture with less embedding of ceramic phases into Mo agglomerates was obtained. This study also focuses on the evaluation of high-temperature phase and microstructural stability of the produced composite powders treated at the temperature of 1300 degrees C under the different gaseous environments, including ambient, inert and reducing atmospheres. The Mo-10 vol% La2Zr2O7 composite powder exhibited better thermal stability during the high-temperature exposure in all tested atmospheres in comparison with the Mo-La2O3 composite powder, since it revealed less intensive formation of the intermediate phases, such as lanthanum oxymolybdates. Therefore, the Mo-10 vol%La2Zr2O7 composite powder was used further for consolidation by means of spark plasma sintering at 1600 degrees C. The successful production of Mo-La2Zr2O7 composite with homogeneous distribution of ceramic phase, the grain size about of 5 mu m, and hardness of 3.4 GPa was not reported so far.en
dc.description.embargo2023-10-27cs
dc.formattextcs
dc.format.extent1-13cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationINTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS. 2022, vol. 102, issue 1, p. 1-13.en
dc.identifier.doi10.1016/j.ijrmhm.2021.105717cs
dc.identifier.issn0263-4368cs
dc.identifier.orcid0000-0003-0264-3483cs
dc.identifier.orcid0000-0001-9111-1520cs
dc.identifier.orcid0000-0002-3449-1325cs
dc.identifier.orcid0000-0003-0672-7481cs
dc.identifier.orcid0000-0003-1678-5618cs
dc.identifier.orcid0000-0002-6854-4536cs
dc.identifier.orcid0000-0002-4026-6845cs
dc.identifier.other176090cs
dc.identifier.researcheridD-6870-2012cs
dc.identifier.researcheridG-7772-2018cs
dc.identifier.researcheridAAB-5781-2021cs
dc.identifier.researcheridAAA-8935-2021cs
dc.identifier.researcheridO-2116-2018cs
dc.identifier.researcheridH-7211-2014cs
dc.identifier.scopus25621022900cs
dc.identifier.scopus55223374100cs
dc.identifier.scopus57053564300cs
dc.identifier.scopus56177144000cs
dc.identifier.scopus7004835357cs
dc.identifier.scopus7004377038cs
dc.identifier.urihttp://hdl.handle.net/11012/203541
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofINTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALScs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0263436821002493cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0263-4368/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectMolybdenumen
dc.subjectLanthanum oxideen
dc.subjectLanthanum zirconium oxideen
dc.subjectHigh-energy millingen
dc.subjectThermal stabilityen
dc.subjectSpark plasma sinteringen
dc.titleHigh-energy ball milling and spark plasma sintering of molybdenum - lanthanum oxide (Mo-La2O3) and molybdenum - lanthanum zirconate (Mo-La2Zr2O7) composite powdersen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionacceptedVersionen
sync.item.dbidVAV-176090en
sync.item.dbtypeVAVen
sync.item.insts2023.10.27 00:58:07en
sync.item.modts2023.10.27 00:15:45en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé povlakycs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé keramické materiálycs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav materiálových věd a inženýrstvícs
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