Interactions of molecular ion beams with surfaces. Report No. 1 (final) 1 Jul 79-30 Jun 80

Technical Report · Mon Sep 08 04:00:00 EDT 1980

OSTI ID:6429188

Rabalais, J W

Reactions of positive N(+2) ion beams with the surface of polycrystalline rhenium foil over the range 150-3000 eV have been studied by the techniques of X-ray photoelectron spectroscopy (XPS) and thermal desorption spectrometry (TDS). The reactions produce a nitride layer of the type ReNx, 0.21 less than or equal to X less than or equal to 0.40, with x varying as a function of ion kinetic energy and depth into the surface. The nitride layer extends from the surface down to the penetration depth of the atoms, which varies from approx. 15 angstroms at 0.3 keV to approx. 76 angstoms at 2.5 keV ion energy. The product nitride and chemisorbed nitrogen on Re are distinctly different, exhibiting N1s binding energies of 397.9 and 396.8 eV, respectively, and TDS maxima near 425 and 600 C, respectively.

• Research Organization: Houston Univ., TX (USA). Dept. of Chemistry
• OSTI ID: 6429188
• Report Number(s): AD-A-089959
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
ABSORPTION SPECTRA
BEAMS
CATIONS
CHARGED PARTICLES
DESORPTION
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY
INTERACTIONS
ION BEAMS
IONS
KINETIC ENERGY
LAYERS
METALS
MOLECULAR IONS
NITRIDES
NITROGEN COMPOUNDS
NITROGEN IONS
PHOTOELECTRON SPECTROSCOPY
PNICTIDES
RADIATION EFFECTS
REFRACTORY METALS
RHENIUM
SPECTRA
SPECTROSCOPY
SURFACES
TRANSITION ELEMENTS