Back to results
US 10,593,505 B1Granted
Low temperature, high-brightness, cathode
AssigneesNuFlare Technology, Inc., NuFlare Technology America, Inc.
InventorVictor Katsap
Life of this patent
Estimating the term…
Abstract
Thermionic cathodes and an electron emission apparatus are provided. The thermionic cathodes comprise perovskite material in crystal or sintered form. The thermionic cathodes provide strong electron emission at low operating temperatures.
Claims18
A thermionic cathode, comprising:
- an emitter consisting of a perovskite material in crystal or sintered form, wherein an operating temperature of the thermionic cathode is in a range from 900° C. to 1500° C.,
- wherein the perovskite material has a formula ABO3, where A is strontium and B is selected from vanadium (V), Niobium (Nb), and combinations thereof.
An electron emission apparatus, comprising:
- a thermionic cathode, including
- an emitter consisting of perovskite material in crystal or sintered form;
- a heat source operably connected to the thermionic cathode and configured to provide heat to the emitter;
- and
- a support for the emitter,
- wherein the perovskite material has a formula ABO3, where A is strontium and B is selected from vanadium (V), Niobium (Nb), and combinations thereof.
3 more elements
A thermionic cathode, comprising:
- an emitter comprising a coating consisting of a sintered perovskite material,
- wherein an operating temperature of the thermionic cathode is in a range from 900° C. to 1500° C. and the sintered perovskite material has a formula ABO3, where A is strontium and B is selected from vanadium (V), Niobium (Nb), and combinations thereof.
Dependencies are inferred from the claim text.