Patent ID: 11920235
Assignee: nan
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  H | IPC C

Claim 5:
6. A method for dispensing an elemental-alkali metal, the method comprising:
providing a highly-oriented pyrolytic graphite (“HOPG”) volume intercalated with an elemental-alkali metal, the HOPG volume being positioned within a vacuum chamber at a vacuum pressure below 1.3×10−5 Torr;
heating the HOPG volume such that the HOPG volume emits the elemental-alkali metal at a partial pressure between 1×10−11 and 1×10−6 Torr, wherein the HOPG volume is intercalated with elemental-alkali metal by vacuum baking the HOPG volume while the HOPB volume is positioned proximate the elemental-alkali metal until the HOPG volume has increased in size.