Příprava tenkostěnných trubic z ZrO2 a CeO2 termoplastickým vytlačováním

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F04%3APU41980" target="_blank" >RIV/00216305:26210/04:PU41980 - 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

Fabrication of zirconia- and ceria-based thin-wall tubes by thermoplastic extrusion

Popis výsledku v původním jazyce

Thin-wall tubes made of zirconia stabilized by 8 mol% of yttria and of ceria doped by 10 mol% of gadolinia were prepared by thermoplastic extrusion. The rheological behaviour of the ceramic mixtures prepared and the effect of rheological properties on the deformation of tubes were studied. After sintering, the diameter of tubes was 10.5 mm and their wall thickness ranged from 270 to 420 mm. The deformation and shape irregularity of sintered tubes were determined. The tubes, which were sintered at a tempperature of 1500°C, had a relative density of more than 98% t.d. Flexural strength and fracture toughness of sintered ceramics were determined on test bars prepared by injection moulding from thermoplastic mixtures identical to those used for extrusion.The fracture toughness established was 1.7 MPa×m^0.5 for yttria-stabilized zirconia, and 1.1 MPa×m^0.5 for gadolinia-doped ceria.

Název v anglickém jazyce

Fabrication of zirconia- and ceria-based thin-wall tubes by thermoplastic extrusion

Popis výsledku anglicky

Thin-wall tubes made of zirconia stabilized by 8 mol% of yttria and of ceria doped by 10 mol% of gadolinia were prepared by thermoplastic extrusion. The rheological behaviour of the ceramic mixtures prepared and the effect of rheological properties on the deformation of tubes were studied. After sintering, the diameter of tubes was 10.5 mm and their wall thickness ranged from 270 to 420 mm. The deformation and shape irregularity of sintered tubes were determined. The tubes, which were sintered at a tempperature of 1500°C, had a relative density of more than 98% t.d. Flexural strength and fracture toughness of sintered ceramics were determined on test bars prepared by injection moulding from thermoplastic mixtures identical to those used for extrusion.The fracture toughness established was 1.7 MPa×m^0.5 for yttria-stabilized zirconia, and 1.1 MPa×m^0.5 for gadolinia-doped ceria.

Druh

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

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

<a href="/cs/project/OC%20525.10" target="_blank" >OC 525.10: Příprava a vlastnosti keramických materiálů s iontovou nebo iontově-elektronovou vodivostí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

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

24

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

645-651

Kód UT WoS článku

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EID výsledku v databázi Scopus

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