Hydrogen adsorption characteristics of Zr57V36Fe7 non-evaporable getters at low operating temperatures

Intermetallic alloys as hydrogen getters

“…Once activated, zirconium fully participates to the sorption reaction. The same composition was analyzed by Feng et al [61], regarding the sorption properties at low temperatures (around -170 °C). Though exhibiting slow kinetics, the sample shows good hydrogen capacity retention at low temperature.…”

Formation Mechanism of Passivation Layer under Air Exposure on TiZrV Non-Evaporable Getter Film

“…Non-evaporable getter (NEG) films, due to their special microstructures for high foreign atom holding capacity and high reactivity with gas molecules, have become an essential component in situations where ultrahigh or extremely high vacuum is required. − However, a passivation layer forms on the surface of this special material when exposed to air, which requires thermal vacuum activation prior to use. Research ,− on the composition of the passivation layer is critical to improving the activation performance and extending the lifetime of NEG films. X-ray photoelectron spectroscopy (XPS) − and synchrotron radiation photoemission spectroscopy (SRPES) , are the dominant research approaches.…”

“…Research ,− on the composition of the passivation layer is critical to improving the activation performance and extending the lifetime of NEG films. X-ray photoelectron spectroscopy (XPS) − and synchrotron radiation photoemission spectroscopy (SRPES) , are the dominant research approaches. This method facilitates an understanding of the formed compositional characteristics, but it lacks details and is not sufficient to gain insight into the passivation layer formation mechanism.…”

“…11 show the XPS results of the surface composition variation of the TiZrV NEG films after undergoing different…”