MICROSTRUCTURE AND WORK FUNCTION OF DISPENSER CATHODE COATINGS: EFFECTS ON THERMIONIC EMISSION
Dispenser cathodes emit electrons through thermionic emission and are a critical component of space-based and telecommunication devices. The emission of electrons is enhanced when coated with a refractory metal such as osmium (Os), osmium-ruthenium (Os-Ru), or iridium (Ir). In this work the microstr...
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| Format: | Others |
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UKnowledge
2014
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| Online Access: | http://uknowledge.uky.edu/cme_etds/41 http://uknowledge.uky.edu/cgi/viewcontent.cgi?article=1040&context=cme_etds |