Claims
- 1. A ceramic composite comprising a continuous phase of an alkali-metal-ion conductor and a continuous phase of a ceramic oxygen-ion conductor, the alkali-metal-ion conductor comprising at least one of alkali-metal-beta-alumina, alkali-metal-beta″-alumina, alkali-metal-beta-gallate, or alkali-metal-beta″-galate.
- 2. A ceramic composite as in claim 1 wherein the alkali-metal of the alkali-metal-ion conductor comprises at least one of lithium-, sodium-, potassium-, rubidium- or caesium.
- 3. A ceramic composite as in claim 1 wherein the alkali-metal-ion conductor comprises at least one of sodium-beta″-alumina or potassium-beta″-alumina.
- 4. A ceramic composite as in claim 1 wherein the alkali-metal-ion conductor comprises sodium-beta″-alumina.
- 5. A ceramic composite as in claim 1 wherein the ceramic oxygen-ion conductor comprises a ceramic comprising at least one of zirconia, ceria, hafnia, or thoria.
- 6. A ceramic composite comprising a continuous phase of at least one of alkali-metal-beta-alumina or alkali-metal-beta″-alumina and a continuous phase of a ceramic oxygen-ion conductor.
- 7. A ceramic composite as in claim 6 wherein the alkali-metal-of the alkali-metal-beta-alumina or alkali-metal-beta″-alumina comprises lithium-, sodium-, potassium-, rubidium- or caesium.
- 8. A ceramic composite as in claim 6 wherein the alkali metal of the alkali-metal-beta-alumina comprises at least one of sodium- or potassium.
- 9. A ceramic composite comprising a continuous phase of at least one of sodium-metal-beta-alumina or sodium-metal-beta″-alumina and a continuous phase of a ceramic oxygen-ion conductor.
- 10. A ceramic composite as in claim 6 wherein the ceramic oxygen-ion conductor comprises a ceramic comprising at least one of zirconia, ceria, hafnia, or thoria.
- 11. A ceramic composite as in claim 6 wherein the ceramic oxygen-ion conductor comprises a ceramic comprising at least one yttria stabilized zirconia, rare-earth-oxide-doped zirconia, and scandia-doped zirconia, rare-earth doped ceria and alkaline-earth doped ceria, stabilized hafnia, or thoria.
RELATED APPLICATIONS
[0001] This application is a continuation of U.S. patent application Ser. No. 09/636,157, filed Aug. 8, 2000, which is a continuation of U.S. patent application Ser. No. 09/002,483, filed Feb. 1, 1999, now U.S. Pat. No. 6,117,807, issued Sep. 12, 2000, which are hereby incorporated by reference.
Continuations (2)
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Number |
Date |
Country |
Parent |
09636157 |
Aug 2000 |
US |
Child |
10308652 |
Dec 2002 |
US |
Parent |
09002483 |
Jan 1998 |
US |
Child |
09636157 |
Aug 2000 |
US |