Thermal stability and transformation phenomena in magnetron sputtered Al-Cu-O films

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F15%3A43924835" target="_blank" >RIV/49777513:23520/15:43924835 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ceramint.2015.01.045" target="_blank" >http://dx.doi.org/10.1016/j.ceramint.2015.01.045</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ceramint.2015.01.045" target="_blank" >10.1016/j.ceramint.2015.01.045</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermal stability and transformation phenomena in magnetron sputtered Al-Cu-O films

Popis výsledku v původním jazyce

The present study focuses on the effect of Cu incorporation into magnetron sputtered alumina films. The transformation phenomena in an Al-O film and Al-Cu-O films with varying Cu content (1.4-9.6 at.%) were studied using differential scanning calorimetry(DSC) and X-ray diffraction in combination with ab-initio calculations. In the Al-O film, only an exothermic transformation of an as-deposited ?-Al2O3 structure into ?-Al2O3 is observed. In the Al-Cu-O films an exothermic decomposition of an as-deposited metastable solid solution into ?-Al2O3 and CuAl2O4 was observed with a successive endothermic decomposition of CuAl2O4. In the Al-Cu-O film with 1.4 at.% Cu the ?-Al2O3 phase forms at a considerably lower temperature (~1000 oC) compared to the Al-O film (~1150 oC). The increasing Cu content results in an increase of thermal stability of the metastable solid solution and a decrease of (i) the concentration of octahedral Al vacancies and (ii) transformation energy of this solution upon h

Název v anglickém jazyce

Thermal stability and transformation phenomena in magnetron sputtered Al-Cu-O films

Popis výsledku anglicky

The present study focuses on the effect of Cu incorporation into magnetron sputtered alumina films. The transformation phenomena in an Al-O film and Al-Cu-O films with varying Cu content (1.4-9.6 at.%) were studied using differential scanning calorimetry(DSC) and X-ray diffraction in combination with ab-initio calculations. In the Al-O film, only an exothermic transformation of an as-deposited ?-Al2O3 structure into ?-Al2O3 is observed. In the Al-Cu-O films an exothermic decomposition of an as-deposited metastable solid solution into ?-Al2O3 and CuAl2O4 was observed with a successive endothermic decomposition of CuAl2O4. In the Al-Cu-O film with 1.4 at.% Cu the ?-Al2O3 phase forms at a considerably lower temperature (~1000 oC) compared to the Al-O film (~1150 oC). The increasing Cu content results in an increase of thermal stability of the metastable solid solution and a decrease of (i) the concentration of octahedral Al vacancies and (ii) transformation energy of this solution upon h

Druh

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

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

<a href="/cs/project/GAP108%2F12%2F0393" target="_blank" >GAP108/12/0393: Tvrdé nanokompozitní vrstvy se zvýšenou houževnatostí a unikátními vlastnostmi</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Ceramic International

ISSN

0272-8842

e-ISSN

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Svazek periodika

41

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

10

Strana od-do

6020-6029

Kód UT WoS článku

000350513700102

EID výsledku v databázi Scopus

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