Getter device employing calcium evaporation
AssigneeSAES Getter S.p.A.
InventorsCorrado Carretti, Luca Toia, Claudio Boffito
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Abstract
A getter comprising a calcium-aluminum compound including about 39% to about 43% calcium by weight produces a calcium vapor when sufficiently heated. The calcium vapor can condense to form a calcium film on an inside surface of a sealed evacuated enclosure such as a CRT to getter reactive species from the enclosed volume. The calcium-aluminum compound, preferably CaAl2 powder, can be mixed with either nickel powder, titanium powder, or both.
Claims28
A getter device for maintaining a vacuum in a sealed enclosure comprising a calcium-aluminum compound including 39% to 43% calcium by weight, said compound being capable of producing a calcium vapor when heated, whereby said calcium vapor can condense to form a calcium film on an inside surface of said sealed enclosure.
Dependencies are inferred from the claim text.