On the power density at the onset for flash sintering in ceramic composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F21%3A00543333" target="_blank" >RIV/61389021:_____/21:00543333 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/21:10430067

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1359646221002645?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1359646221002645?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.scriptamat.2021.113984" target="_blank" >10.1016/j.scriptamat.2021.113984</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On the power density at the onset for flash sintering in ceramic composites

Popis výsledku v původním jazyce

Flash sintering is usually said to be activated in a narrow range of power density regardless of the onset flash temperature and material. However, the typical logarithmic scale employed in the flash power plots could hide some finer tendencies in the flash onset conditions. Herein, we investigated the flash onset in YSZ/Al2O3 composites taking into account the power density normalized to the total composite (won-comp) and the conductive phase volume (won-YSZ). The results show that at the flash onset (i) won-YSZ strongly increases with the Al2O3 amount in the composite, (ii) won-comp weakly depends on the composite composition, and (iii) both won-comp and won-YSZ increase with the flash onset temperature (which is a function of the electric field). The results offer new light on the mechanisms of flash ignition and a new insight on the power required to activate the phenomenon, which appears to be consistent with a thermally-driven process.

Název v anglickém jazyce

On the power density at the onset for flash sintering in ceramic composites

Popis výsledku anglicky

Flash sintering is usually said to be activated in a narrow range of power density regardless of the onset flash temperature and material. However, the typical logarithmic scale employed in the flash power plots could hide some finer tendencies in the flash onset conditions. Herein, we investigated the flash onset in YSZ/Al2O3 composites taking into account the power density normalized to the total composite (won-comp) and the conductive phase volume (won-YSZ). The results show that at the flash onset (i) won-YSZ strongly increases with the Al2O3 amount in the composite, (ii) won-comp weakly depends on the composite composition, and (iii) both won-comp and won-YSZ increase with the flash onset temperature (which is a function of the electric field). The results offer new light on the mechanisms of flash ignition and a new insight on the power required to activate the phenomenon, which appears to be consistent with a thermally-driven process.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/EF18_053%2F0016925" target="_blank" >EF18_053/0016925: ÚFP - Mobilita II</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Scripta Materialia

ISSN

1359-6462

e-ISSN

1872-8456

Svazek periodika

201

Číslo periodika v rámci svazku

August

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

113984

Kód UT WoS článku

000670403400003

EID výsledku v databázi Scopus

2-s2.0-85107282146