Journal Article

PreJuSER-182

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png La2(Zr0.7Ce0.3)207- A new oxide ceramic material with high sintering-resistance

Xueqiang, C. ; Jiayan, L. ; Xinghua, Z. ; Jiangfeng, Z. ; Yanfei, Z. ; Vaßen, R.FZJ* ; Stöver, D.FZJ*

2008
Elsevier New York, NY [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.matlet.2008.01.009

Abstract: Oxide ceramics with high sintering-resistance above 1473 K have very important applications in thermal barrier coatings (TBCs), catalytic combustion and high-temperature structural materials. Lanthanum zirconate (La2Zr2O7, LZ) is an attractive TBC material which has higher sintering-resistance than yttria stabilized zirconia (YSZ), and this property could be further improved by the proper addition of ceria. The composite La-2(Zr0.7Ce0.3)(2)O-7 (LZ7C3) has the highest sintering-resistance, and it is observed that fine particles of the second phase in the composite concentrate at the grain boundary to prevent the grain growth of the main phase. The formation of hollow fibers is helpful to the further improvement of sintering-resistance of LZ7C3, and this technique may be widely applied to protect the catalyst support against thermal sintering. (C) 2008 Published by Elsevier B.V.

Keyword(s): J ; ceramics (auto) ; sintering (auto) ; grain boundaries (auto) ; thermal properties (auto)

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Werkstoffsynthese und Herstellungsverfahren (IEF-1)

Research Program(s):

1. Rationelle Energieumwandlung (P12)

Appears in the scientific report 2008

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