Rapid sintering of advanced oxide ceramics by conventional heating

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F16%3APU126745" target="_blank" >RIV/00216305:26210/16:PU126745 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Rapid sintering of advanced oxide ceramics by conventional heating

Popis výsledku v původním jazyce

The paper is dealing with fast sintering of advanced ceramic materials, namely tetragonal zirconia (particle size 80 and 140 nm) and α-alumina (particle size 150 and 270 nm), in conventional resistance furnace. This approach is made possible by special superkanthal furnace, which is capable of reaching a heating rate of 200 °C/min. Samples obtained through cold isostatic pressing (CIP) and fast sintering reached relative density up to 97.8 % t.d. for zirconia and 99.9 % t.d. for alumina, without forming any cracks in samples. Surprisingly, final relative density in the case of tetragonal zirconia with 80 nm particle size was higher for samples with larger pores in the green body (CIP at 25 MPa) than for samples with smaller ones (CIP at 300 MPa). This behaviour is different from conventional sintering and leads to considerations of heat transfer mainly by radiation.

Název v anglickém jazyce

Rapid sintering of advanced oxide ceramics by conventional heating

Popis výsledku anglicky

The paper is dealing with fast sintering of advanced ceramic materials, namely tetragonal zirconia (particle size 80 and 140 nm) and α-alumina (particle size 150 and 270 nm), in conventional resistance furnace. This approach is made possible by special superkanthal furnace, which is capable of reaching a heating rate of 200 °C/min. Samples obtained through cold isostatic pressing (CIP) and fast sintering reached relative density up to 97.8 % t.d. for zirconia and 99.9 % t.d. for alumina, without forming any cracks in samples. Surprisingly, final relative density in the case of tetragonal zirconia with 80 nm particle size was higher for samples with larger pores in the green body (CIP at 25 MPa) than for samples with smaller ones (CIP at 300 MPa). This behaviour is different from conventional sintering and leads to considerations of heat transfer mainly by radiation.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20504 - Ceramics

Projekt

<a href="/cs/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

Processing and properties of advanced ceramics

ISBN

978-80-971648-5-0

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

10-17

Název nakladatele

Neuveden

Místo vydání

Neuveden

Místo konání akce

Košická Belá - Ružín

Datum konání akce

23. 11. 2016

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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