FLUORITE-TYPE CERAMIC MATERIAL Russian patent published in 2004 - IPC

Abstract RU 2237038 C2

FIELD: ceramics.

SUBSTANCE: invention provides relatively inexpensive fluorite-type ceramic material suitable to be employed in production of ion- and/or electron-conducting ceramic products, in particular membranes for separating oxygen from oxygen-containing gas mixture, and for electrolytes in fuel cells and electrochemical reactors. Material is depicted by general formula AxByO2-δ, where x ≤ 1, y ≤ 1, and -1< δ <1; A represents one or several metals selected from Ti, Zr, Hf, Ce, Th, or their mixtures; B at least two metals selected from 2A, 3B, and lanthanoid group metals.

EFFECT: increased oxygen ion or mixed oxygen ion and electron conductance at high and middle temperatures.

2 cl

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RU 2 237 038 C2

Authors

Kristiansen Nil'S

Gordes Petru

Dates

2004-09-27Published

1999-03-30Filed