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Synthesis, magnetic and transport properties of oxygen-free CrN ceramics
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SYSNO ASEP 0438771 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Synthesis, magnetic and transport properties of oxygen-free CrN ceramics Tvůrce(i) Jankovský, O. (CZ)
Sedmidubský, D. (CZ)
Huber, Štěpán (FZU-D)
Šimek, P. (CZ)
Šofer, Z. (CZ)Zdroj.dok. Journal of the European Ceramic Society. - : Elsevier - ISSN 0955-2219
Roč. 34, č. 16 (2014), s. 4131-4136Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova chromium nitride ; nitride ceramics ; magnetotransport properties ; thermoelectric properties Vědní obor RIV BM - Fyzika pevných látek a magnetismus CEP GA13-20507S GA ČR - Grantová agentura ČR Institucionální podpora FZU-D - RVO:68378271 UT WOS 000343357200002 EID SCOPUS 84905891974 DOI 10.1016/j.jeurceramsoc.2014.07.030 Anotace In the literature, CrN is usually synthetized as thin films and often contains impurities such as oxygen or Cr2N. We successfully prepared pure CrNpowder by ammonolysis of anhydrous chromium (III) chloride, which was confirmed by X-ray diffraction analysis (XRD) and SEM-EDS. CrNceramics were then prepared by classical ceramic route (CCR) and by spark plasma sintering (SPS) at different sintering conditions. Transportproperties (Seebeck coefficient, electrical resistivity and thermal conductivity) were measured in the range 2–600 K and the magnetic behaviorwas examined by SQUID. Above the room temperature thermal conductivity was obtained by laser flash analysis (LFA). Thermal stability andthermodynamic characteristics were probed by simultaneous thermal analysis (STA). Transport properties are strongly affected by the fabricationprocess and the resulting figure of merit (ZT) is surprisingly high. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2017
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