Synthesis, magnetic and transport properties of oxygen-free CrN ceramics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F14%3A43897402" target="_blank" >RIV/60461373:22310/14:43897402 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/14:00438771

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0955221914004117#" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0955221914004117#</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2014.07.030" target="_blank" >10.1016/j.jeurceramsoc.2014.07.030</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis, magnetic and transport properties of oxygen-free CrN ceramics

Popis výsledku v původním jazyce

In the literature, CrN is usually synthetized as thin films and often contains impurities such as oxygen or Cr2N. We successfully prepared pure CrN powder by ammonolysis of anhydrous chromium (III) chloride, which was confirmed by X-ray diffraction analysis (XRD) and SEM-EDS. CrN ceramics were then prepared by classical ceramic route (CCR) and by spark plasma sintering (SPS) at different sintering conditions. Transport properties (Seebeck coefficient, electrical resistivity and thermal conductivity) were measured in the range 2-600 K and the magnetic behavior was examined by SQUID. Above the room temperature thermal conductivity was obtained by laser flash analysis (LFA). Thermal stability and thermodynamic characteristics were probed by simultaneous thermal analysis (STA). Transport properties are strongly affected by the fabrication process and the resulting figure of merit (ZT) is surprisingly high. CrN has big potential as a new high temperature thermoelectric material.

Název v anglickém jazyce

Synthesis, magnetic and transport properties of oxygen-free CrN ceramics

Popis výsledku anglicky

In the literature, CrN is usually synthetized as thin films and often contains impurities such as oxygen or Cr2N. We successfully prepared pure CrN powder by ammonolysis of anhydrous chromium (III) chloride, which was confirmed by X-ray diffraction analysis (XRD) and SEM-EDS. CrN ceramics were then prepared by classical ceramic route (CCR) and by spark plasma sintering (SPS) at different sintering conditions. Transport properties (Seebeck coefficient, electrical resistivity and thermal conductivity) were measured in the range 2-600 K and the magnetic behavior was examined by SQUID. Above the room temperature thermal conductivity was obtained by laser flash analysis (LFA). Thermal stability and thermodynamic characteristics were probed by simultaneous thermal analysis (STA). Transport properties are strongly affected by the fabrication process and the resulting figure of merit (ZT) is surprisingly high. CrN has big potential as a new high temperature thermoelectric material.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA13-20507S" target="_blank" >GA13-20507S: Tenké vrstvy magneticky dopovaného GaN</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of the European Ceramic Society

ISSN

0955-2219

e-ISSN

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Svazek periodika

30

Číslo periodika v rámci svazku

16

Stát vydavatele periodika

BE - Belgické království

Počet stran výsledku

6

Strana od-do

4131-4136

Kód UT WoS článku

000343357200002

EID výsledku v databázi Scopus

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