Two-Step Sintering and Spark Plasma Sintering of Al2O3, ZrO2 and SrTiO3 Ceramics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F08%3APU75842" target="_blank" >RIV/00216305:26210/08:PU75842 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Two-Step Sintering and Spark Plasma Sintering of Al2O3, ZrO2 and SrTiO3 Ceramics

Original language description

The influence of Two Step Sintering and Spark Plasma Sintering processes on the microstructure of three kinds of oxide ceramics was studied. Al2O3 (with initial particle size of 240 nm), ZrO2 (60 nm, stabilized with 3 mol%Y2O3) and SrTiO3 (50 nm) powderswere cold isostatically pressed and pressureless sintered with different heating regimes. It was found that the method of TSS does not bring about significant reduction of final grain size in Al2O3 and ZrO2 ceramics, but does reduce the grain size in perovskite SrTiO3 ceramics. Pressureless sintering of SrTiO3 leads only to 95%TD dense ceramics with the minimum grain size of 400 nm. In comparison, by SPS, with an applied uniaxial pressure of 200MPa, SrTiO3 ceramic of 98%TD dense with grain size of 80 nm was prepared.

Czech name

Dvojstupňové a SPS slinování Al2O3, ZrO2 a SrTiO3 keramiky

Czech description

Byl studován vliv dvojstupňového a SPS slinování na mikrostrukturu 3 typů oxidových keramik: Al2O3 (velikost částic 240 nm), ZrO2 (60 nm, stabilizován 3 mol%Y2O3) a SrTiO3 (50 nm). Dvojstupňové slinování nevedlo ke snížení velikosti zrn Al2O3 a ZrO2 keramiky, ale způsobilo významné snížení jejich velikosti u perovskitové SrTiO3 keramiky. Beztlaké slinováníf SrTiO3 vedlo ke keramice o hustotě pouze 95%TD a velikosti zrn 400nm. Na rozdíl od toho pomocí SPS při tlaku 200MPa byla přpravena SrTiO3 keramika ohustotě 98%TD a velikosti zrn 80nm.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JH - Ceramics, fire-proof materials and glass

OECD FORD branch

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Project

<a href="/en/project/OC%20102" target="_blank" >OC 102: Processing of electroceramics from nanopowders</a><br>

Continuities

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

Publication year

2008

Confidentiality

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

Name of the periodical

INTEGRATED FERROELECTRICS

ISSN

1058-4587

e-ISSN

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Volume of the periodical

99

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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