Thermal shock resistance of Si3N4 and Si3N4?SiC ceramics with rare-earth oxide sintering additives

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F14%3A%230006376" target="_blank" >RIV/46747885:24210/14:#0006376 - isvavai.cz</a>

Result on the web

<a href="http://www.sciencedirect.com/science/article/pii/S0955221914002374/pdfft?md5=e79f3236f75a6e8a62e6155a51df8813&pid=1-s2.0-S0955221914002374-main.pdf" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0955221914002374/pdfft?md5=e79f3236f75a6e8a62e6155a51df8813&pid=1-s2.0-S0955221914002374-main.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2014.04.034" target="_blank" >10.1016/j.jeurceramsoc.2014.04.034</a>

Result language

angličtina

Original language name

Thermal shock resistance of Si3N4 and Si3N4?SiC ceramics with rare-earth oxide sintering additives

Original language description

The influence of various rare-earth oxide additives and the addition of SiC nanoparticles on the thermal shock resistance of the Si3N4 based materials was investigated. The location of SiC particles inside the Si3N4 grains contributed to a higher level of residual stresses, which caused a failure at the lower temperature difference compared to the composites with a preferential location of the SiC at the grain boundaries. A critical temperature difference increased with an increasing ionic radius of RE3+ for both the composites and the monoliths. The critical temperature difference for the composite (580 °C) and the monolith (680 °C) sintered with La2O3 was significantly higher compared to the composite and the monolith doped with Lu2O3 (430 °C). A good agreement was found between the results of the critical temperature difference estimated by the indentation quench test and that obtained by the strength retention method.

Czech name

—

Czech description

—

Type

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

CEP classification

JH - Ceramics, fire-proof materials and glass

OECD FORD branch

—

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Name of the periodical

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY

ISSN

0955-2219

e-ISSN

—

Volume of the periodical

34

Issue of the periodical within the volume

14

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

3301-3308

UT code for WoS article

000340222800008

EID of the result in the Scopus database

—