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Auger electron spectroscopy and x-ray photoelectron spectroscopy of the biocorrosion of copper by Gum Arabic, BCS and Pseudomonas atlantica exopolymer

Conference ·
OSTI ID:5905874
; ; ; ;
Thin films (3.4 nm) of copper on germanium substrates were exposed to 10% Gum Arabic aqueous solution, 1% BCS (aqueous and simulated sea water solutions) and 0.5% Pseudomonas atlantica exopolymer (aqueous and simulated sea water solutions). Pre- and post-exposure characterization were done by Auger electron spectroscopy and x-ray photoelectron spectroscopy. Ancillary graphite furnace atomic absorption spectroscopy was used to monitor the removal process of the copper thin film from the germanium substrate. Results indicate that the copper was oxidized by the Gum Arabic and BCS, and some was removed from the Cu/Ge interface by all three polymers and incorporated into the polymer matrix. Thus biocorrosion of copper was exhibited by the Gum Arabic, BCS and Pseudomonas atlantica exopolymer. 14 refs., 4 figs., 3 tabs.
Research Organization:
EG and G Idaho, Inc., Idaho Falls (USA); California State Univ., Long Beach (USA). Dept. of Microbiology
DOE Contract Number:
AC07-76ID01570
OSTI ID:
5905874
Report Number(s):
EGG-M-10187; CONF-8706216-1; ON: DE87014871
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ABSORPTION SPECTROSCOPY
AQUEOUS SOLUTIONS
AUGER ELECTRON SPECTROSCOPY
BACTERIA
BINDING ENERGY
BIODEGRADATION
CARBOHYDRATES
CHEMICAL REACTIONS
COPPER
CORROSION
CORROSIVE EFFECTS
DECOMPOSITION
DISPERSIONS
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY
FILMS
GERMANIUM
GUM ACACIA
HYDROGEN COMPOUNDS
MATERIALS TESTING
METALS
MICROORGANISMS
MIXTURES
ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
POLYMERS
POLYSACCHARIDES
PSEUDOMONAS
REMOVAL
SACCHARIDES
SEAWATER
SOLUTIONS
SPECTROSCOPY
SUBSTRATES
TESTING
THIN FILMS
TRANSITION ELEMENTS
UPTAKE
WATER