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1. WO2007099575 - UTILISATION D'ALLIAGES DE GETTER NON ÉVAPORABLES POUR LA SORPTION D'HYDROGÈNE SOUS VIDE ET DANS DES GAZ INERTES

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS

1. Use for hydrogen absorption in evacuated chambers or in inert gases of non-evaporable getter alloys whose composition, plotted in a ternary diagram of weight percentages, falls in the polygon defined by points:
a) Zr 54% - Y 1% - M 45%
b) Zr 50% - Y 5% - M 45%
c) Zr 50% - Y 20% - M 30%
d).Zr 75% - Y 20% - M 5%
e) Zr 80% - Y 15% - M 5%
f) Zr 80% - Y l% - M 19%
wherein M is an element chosen, among aluminum, iron, chromium, manganese, vanadium or mixtures of these elements.
2. Use according to claim 1 in which hydrogen absorption takes place inside an evacuated chamber.
3. Use according to claim 1 in which hydrogen absorption takes place inside a chamber filled with an inert gas.
4. Use according to claim 1 in which hydrogen absorption takes place in an inert gas flow.
5. Use according to one of claims 3 or 4 in which said inert gas comprises argon, nitrogen, helium or their mixtures.
6. Use according to claim 1 in which, when the inert gas is nitrogen, element M of the non-evaporable getter alloy is iron.
7. Use according to claim 6 in which the weight percent composition of said alloy is Zr 69% - Y 10% - Fe 21 %.
8. Use according to claim 6 in which the weight percent composition of said alloy is Zr 61% - Y 20% - Fe 19%.
9. Use according to claim 6 in which the weight percent composition of said alloy is Zr 65% - Y 15% - Fe 20%.
10. Use according to claim 6 in which the weight percent composition of said alloy is Zr 74% - Y 10% - Fe 16%.

11. Use according to one of claims from 6 to 10 in which hydrogen absorption takes place in a jacket for protection of the burner of a lamp.