Grain growth of MgAl2O4 ceramics with LiF and NaF addition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43923175" target="_blank" >RIV/60461373:22310/21:43923175 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.oceram.2021.100078" target="_blank" >https://doi.org/10.1016/j.oceram.2021.100078</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.oceram.2021.100078" target="_blank" >10.1016/j.oceram.2021.100078</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Grain growth of MgAl2O4 ceramics with LiF and NaF addition

Popis výsledku v původním jazyce

The effects of LiF and NaF sintering additives on the grain growth of spinel ceramics prepared via spark plasma sintering (SPS) are investigated and compared for dwell times in the range 0–120 min. Absence of sintering additives resulted in abnormal grain growth, whereas LiF addition allowed continuous (normal) grain growth, although with final grain size larger by a factor 12 after 120 min dwell time. By contrast, NaF is the other extreme, its addition results in very little grain growth (by a factor of only 1.2 after 120 min dwell time), thus preserving a grain size very close to nanometric. Occasionally, large highly faceted grains were observed, indicating inadequate homogenization in the case of spinel ceramics with NaF addition. Nevertheless, it seems that addition of NaF is suitable for the preparation of dense nanocrystalline spinel ceramics without any extreme conditions applied (high pressure).

Název v anglickém jazyce

Grain growth of MgAl2O4 ceramics with LiF and NaF addition

Popis výsledku anglicky

The effects of LiF and NaF sintering additives on the grain growth of spinel ceramics prepared via spark plasma sintering (SPS) are investigated and compared for dwell times in the range 0–120 min. Absence of sintering additives resulted in abnormal grain growth, whereas LiF addition allowed continuous (normal) grain growth, although with final grain size larger by a factor 12 after 120 min dwell time. By contrast, NaF is the other extreme, its addition results in very little grain growth (by a factor of only 1.2 after 120 min dwell time), thus preserving a grain size very close to nanometric. Occasionally, large highly faceted grains were observed, indicating inadequate homogenization in the case of spinel ceramics with NaF addition. Nevertheless, it seems that addition of NaF is suitable for the preparation of dense nanocrystalline spinel ceramics without any extreme conditions applied (high pressure).

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

20504 - Ceramics

Projekt

<a href="/cs/project/GA18-17899S" target="_blank" >GA18-17899S: Částečně a plně slinutá keramika - příprava, mikrostruktura, vlastnosti, modelování a teorie slinování</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

Open Ceramics

ISSN

2666-5395

e-ISSN

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Svazek periodika

5

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

10008

Kód UT WoS článku

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EID výsledku v databázi Scopus

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