Diffusion and trapping of oxygen in Nb-V alloys

Conference · · TMS (The Metallurgical Society) Paper Selection; (USA)

OSTI ID:5451303

Park, J W; Altstetter, C J ^[1]

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1. Univ. of Illinois, Urbana (USA)

The diffusion coefficient of oxygen has been measured in Nb-V alloys across the entire range of Nb/V concentrations. Measurements were made using a solid state electrolytic cell technique over the temperature range 650-1100 C. The increase in the activation energy for oxygen diffusion in the alloys was interpreted as being due to trapping of oxygen atoms by the substitutional solute atoms. The substitutional-interstitial interaction behavior over the entire composition range is discussed in terms of chemical affinity and atomic size mismatch.

• OSTI ID: 5451303
• Report Number(s): CONF-840909--
• Conference Information: Journal Name: TMS (The Metallurgical Society) Paper Selection; (USA) Journal Volume: 56
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ACTIVATION ENERGY
ALLOYS
CHEMICAL COMPOSITION
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DIFFUSION
ELECTROLYTIC CELLS
ELEMENTS
ENERGY
INTERSTITIALS
NIOBIUM ALLOYS
NONMETALS
OXYGEN
PERMEABILITY
POINT DEFECTS
QUANTITY RATIO
TEMPERATURE DEPENDENCE
TRAPS
VANADIUM ALLOYS