Non-evaporable getter alloys particularly suitable for hydrogen and nitrogen sorption

摘要

Getter devices based on powders of alloys particularly suitable for hydrogen and nitrogen sorption are described. Such alloys have a composition including zirconium, vanadium, titanium and, optionally, one or more elements selected from iron, chromium, manganese, cobalt, nickel and aluminum.

主权项

1. A getter device containing non-evaporable getter alloy powders having high gas sorption efficiency, particularly for hydrogen and nitrogen, said alloy powders comprising as compositional elements zirconium, vanadium and titanium and having an atomic percentage composition of said elements which can vary within the following ranges:
zirconium from 42% to 85%; vanadium from 8% to 50%; titanium from 5% to 30%,said atomic percentage ranges being considered respect to a sum of zirconium, vanadium and titanium in the non-evaporarable getter alloy that can further comprise as compositional elements one or more metals selected from the group consisting of iron, chromium, manganese, cobalt, nickel and aluminum,wherein other chemical elements can be present in the alloy composition only if their overall percentage is less than 1% by atomic percentage with respect to the total of the alloy composition.