Grazing-incidence x-ray study of the structures and phase transitions of hydrogen on tungsten (100)

Technical Report · Mon Nov 09 00:00:00 EST 1987

OSTI ID:6957212

Chung, J W; Evans-Lutterodt, K; Specht, E D; Birgeneau, R J; Estrup, P J

The paper reports a synchrotron x-ray diffraction study of the tungsten (100) surface reconstruction induced by the chemisorption of hydrogen at room temperature. The experiments verify previously deduced phase boundaries but they suggest a new interpretation of the phases, the most interesting being that the weakly incommensurate solid is actually a surface fluid. These experiments also illustrate the utility of x rays in obtaining quantitative intensity and line-shape information in chemisorbed surface systems.

• Research Organization: Massachusetts Inst. of Tech., Cambridge (USA). Research Lab. of Electronics
• OSTI ID: 6957212
• Report Number(s): AD-A-193944/6/XAB
• Resource Relation: Other Information: Pub. in Physical Review Letters, Vol. 59, No. 19, 2192-2195(9 Nov 1987)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
HYDROGEN
CHEMISORPTION
TUNGSTEN
SURFACES
FLUIDS
PHASE TRANSFORMATIONS
SYNCHROTRONS
ACCELERATORS
CHEMICAL REACTIONS
CYCLIC ACCELERATORS
ELEMENTS
METALS
NONMETALS
SEPARATION PROCESSES
SORPTION
TRANSITION ELEMENTS
360205* - Ceramics
Cermets
& Refractories- Corrosion & Erosion
656003 - Condensed Matter Physics- Interactions between Beams & Condensed Matter- (1987-)