Lattice location studies of gases in metals

Journal Article · Thu Jan 01 04:00:00 EST 1976 · Adv. Chem. Ser.; (United States)

DOI:https://doi.org/10.1021/ba-1976-0158.ch014· OSTI ID:7208770

Vook, F L; Picraux, S T

Ion channeling and nuclear microanalysis techniques can determine the crystallographic lattice locations of implanted or dissolved gases in single crystal metals. Ion-induced nuclear reaction, x-ray, or backscattering measurements of channeling angular yield distributions along specific axes and planes clearly indicate lattice locations of gases for high symmetry sites. Interstitial and substitutional sites can be clearly distinguished. Light gas atoms such as hydrogen and oxygen occupy well defined interstitial positions, whereas heavier noble gas atoms do not occupy well defined interstitial or substitutional sites. In bcc metals deuterium is located in tetrahedral sites in W, Cr, and Mo at low temperature and in distorted octahedral sites in Cr and Mo at higher temperatures. For implanted He in W, multiple He atoms are trapped by lattice vacancies.

• Research Organization: Sandia Labs., Albuquerque, NM
• OSTI ID: 7208770
• Journal Information: Adv. Chem. Ser.; (United States), Journal Name: Adv. Chem. Ser.; (United States) Vol. 14:158; ISSN ADCSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360106* -- Metals & Alloys-- Radiation Effects
640301 -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BACKSCATTERING
BCC LATTICES
CHARGED PARTICLES
CHROMIUM
COLLISIONS
CRYSTAL DEFECTS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
CUBIC LATTICES
DEUTERIUM IONS
ELEMENTS
HELIUM IONS
INTERSTITIALS
ION COLLISIONS
ION IMPLANTATION
IONS
METALS
MOLYBDENUM
MONOCRYSTALS
POINT DEFECTS
REFRACTORY METALS
SCATTERING
SPECTRA
TRANSITION ELEMENTS
TRAPPING
TUNGSTEN
X-RAY SPECTRA