Diffusion of water in lithium. beta. -alumina

Journal Article · Tue Dec 15 04:00:00 EST 1981 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.24.6831· OSTI ID:5936347

Dudney, N J; Bates, J B; Wang, J C

Water diffuses into the conduction plane of lithium ..beta..-alumina. Infrared absorption measurements of single crystals treated with H/sub 2//sup ts18/O show that, although the water concentration was homogeneous throughout the sample, most of the /sup 18/O remained near the surface. This result suggests that the oxygen in a water molecule is frequently replaced by other oxygen ions in the crystal. A diffusion mechanism which involves the dissociation of the protons from the water molecule and the jump of the oxygen ion by an interstitialcy movement into an O(5) oxygen site in the conduction plane is proposed.

• Research Organization: Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5936347
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 24:12; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ABSORPTION SPECTRA
ALKALI METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DIFFUSION
EVEN-EVEN NUCLEI
HYDROGEN COMPOUNDS
INFRARED SPECTRA
INTERSTITIALS
ISOTOPES
LIGHT NUCLEI
LITHIUM COMPOUNDS
NEUTRAL-PARTICLE TRANSPORT
NUCLEI
OXIDES
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
POINT DEFECTS
RADIATION TRANSPORT
SPECTRA
STABLE ISOTOPES
SURFACE PROPERTIES
WATER