Air-stable alkali or alkaline-earth metal dispensers
AssigneeSaes Getters S.P.A.
InventorsGiorgio Longoni, Marco Amiotti
Life of this patent
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Abstract
There are described dispensers (10; 20; 30; 40; 50; 60) of alkali or alkaline-earth metals, comprising deposits of getter materials (13; 23; 33; 43; 53; 63) and alkali or alkaline-earth metal sources (12, 22; 32; 42; 53; 63), in which the sources of alkali or alkaline-earth metal are protected from environmental gases by said deposits of getter materials.
Claims14
A dispenser of an alkali or alkaline-earth metal stable to environmental gases, wherein the dispenser comprises a support carrying a deposit of a getter material and wherein the dispenser contains a deposit of an alkali or alkaline-earth metal and releases the alkali or alkaline-earth metal, and wherein the alkali or alkaline-earth metal is in a form of elemental metal in contact with and completely covered by said deposit of getter material, wherein the alkali or alkaline-earth metal is mechanically and chemically protected from the environment by being in contact with said deposit of getter material, and wherein said getter material is selected from the group consisting of hafnium, niobium, vanadium, titanium, zirconium, and titanium- and/or zirconium-based alloys with one or more elements selected from transition elements, Rare Earths and aluminum.
Dependencies are inferred from the claim text.