Thermionic Properties of HfC
Journal Article
·
· Journal of Applied Physics
The thermionic emission properties of bulk HfC were measured at 1300 to 2100 deg K. The experimental apparatus, in addition to the external instrumentation, consisted of a plane diode with a copper collector and a hafnium carbide emitter. The saturation emission current was measured as a function of temperature with a constant voltage of 95 v applied to the collector, which was spaced about 1 mm from the emitter. An approximate least-squares fit to the experimental poiitts gives a work function of 4 v and a Richardson constant of 40 amp/cm2 deg2. A Richardson plot of the experimental data is given.
- Research Organization:
- General Electric Vallecitos Atomic Lab., Pleasanton, Calif.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-005794
- OSTI ID:
- 4813775
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 12 Vol. 32; ISSN JAPIAU; ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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