SIMS Study of the Surface of TiFe Hydride Forming Alloy
The surfaces of specimens of TiFe hydrogen storage alloy have been studied with the use of secondary ion mass spectrometry. Even after the annealing of a specimen in vacuum and its cleaning with an ion beam, a substantial part of its surface is shown to remain coated with a bulky layer composed of oxides, hydrides, hydroxides, and carbides. This layer has to be taken into account when considering problems dealing with the kinetic parameters of hydride formation.
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