Patent · US Active

Heat-insulating layer made of complex perovskite

US7585575B2 · kind B2 · utility

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1References

4Claims

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Assignee

Forschungszentrum Jülich GmbH · DE

Inventors

Robert Vassen · Herzogenrath, DE
Sigrid Schwartz-Lueckge · Hückelhoven, DE
Wolfgang Jungen · Eschweiler, DE
Detlev Stoever · Niederzier, DE

Key dates

Filing date	Dec 19, 2008
Grant date	Sep 8, 2009
Priority date	—
Expiry date	Dec 19, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/12951
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A heat-insulating layer has a melting point above 2500° C., a thermal expansion coefficient in excess of 8×10−6 K−1, and a sintering temperature greater than 1400° C. This material has a perovskite structure of the general formula A1+r(B′1/2+xB″1/2+y)O3+z in which:

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.