High−field electron emission from oxide−metal composite materials
- 1 April 1975
- journal article
- letter
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 46 (4) , 1841-1843
- https://doi.org/10.1063/1.321754
Abstract
High−field electron emission from unidirectionally solidified oxide−metal composites has been experimentally evaluated. Multipin arrays with pin diameters of 0.2−1.0 μm and pin densities of (5−50) ×106/cm2 were produced in UO2−W, ZrO2−W, and Gd2O3−Mo systems. Macroscopic current densities in excess of 100 mA/cm2 were routinely obtained and the observed emitter lifetime was in excess of 2000 h.This publication has 5 references indexed in Scilit:
- Spike cathode for field emissionPhysica Status Solidi (a), 1972
- Unidirectional solidification behavior in refractory oxide-metal systemsJournal of Crystal Growth, 1972
- Multineedle Field Emission from the Ni–W EutecticJournal of Applied Physics, 1970
- UO2‐W Cermets Produced by Unidirectional SolidificationJournal of the American Ceramic Society, 1970
- A Thin-Film Field-Emission CathodeJournal of Applied Physics, 1968