Apparatus for high temperature in situ laser Raman spectroelectrochemical studies of metal corrosion and passivation in aqueous environments

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:7155146

Ruther, W; McMahon, J J; Melendres, C A

Apparatus for in situ Laser Raman Spectroscopy and electrochemical studies of corrosion and passivation phenomena on metals in high-temperature/high-pressure aqueous solutions has been constructed and is described. Results of investigations on lead in 10/sup -4/ M Na/sub 2/SO/sub 4/ solution from 25 to 280/sup 0/C are presented. Passivation of lead was found to persist up to 280/sup 0/C; the surface film consisted mainly of PbSO/sub 4/. Two other oxy-sulfate phases of lead have also been identified at open circuit and slightly more anodic potential.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 7155146
• Report Number(s): CONF-861068-17; ON: DE87004868
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
CHEMICAL REACTIONS
CORROSION
DISPERSIONS
ELECTROCHEMICAL CELLS
ELEMENTS
HIGH PRESSURE
HIGH TEMPERATURE
LASER SPECTROSCOPY
LEAD
METALS
MIXTURES
OXYGEN COMPOUNDS
PASSIVATION
RAMAN SPECTRA
RAMAN SPECTROSCOPY
SODIUM COMPOUNDS
SODIUM SULFATES
SOLUTIONS
SPECTRA
SPECTROSCOPY
SULFATES
SULFUR COMPOUNDS