Ontology highlight
ABSTRACT:
SUBMITTER: Seif MN
PROVIDER: S-EPMC7696668 | biostudies-literature | 2020 Nov
REPOSITORIES: biostudies-literature
Seif Mujan N MN Balk T John TJ Beck Matthew J MJ
Materials (Basel, Switzerland) 20201116 22
Scandate cathodes have exhibited superior emission properties compared to current state-of-the-art "M-type" thermionic cathodes. However, their integration into vacuum devices is limited in part by a lack of knowledge regarding their functional lifespan and behavior during operation. Here, we consider thermal desorption from scandate cathodes by examining the distribution of material deposited on interior surfaces of a sealed vacuum device after ~26,000 h of cathode operation. XPS, EDS, and TEM ...[more]