Method of reducing work function in carbon coated LaB6 cathodes
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United States of America Patent
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Oct 17, 2017
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N/A
app pub date -
Jan 6, 2017
filing date -
Jan 6, 2017
priority date (Note) -
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Abstract
A method to reduce the work function of a carbon-coated lanthanum hexaboride (LaB6) cathode wherein the exposed tip of the cathode is exposed to moisture between two heat treatments is provided. The work function may be reduced by 0.01 eV or more.
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Patent Citation Ranking
- 4 Citation Count
- H01J Class
- 25.25 % this patent is cited more than
- 8 Age
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