National Research Council of Canada. Energy, Mining and Environment
National Research Council of Canada. Information and Communication Technologies
Copper; Copper corrosion; Corrosion; Oxygen; Thermal desorption spectroscopy; X ray photoelectron spectroscopy; B. AES; Corrosion products; Distilled water; Ex situ; Hydrogen absorption; Hydrogen pressures; Near room temperature; Surface region; Hydrogen
This paper reports on hydrogen pressures measured during ~19,000. h immersion of copper in oxygen-free liquid distilled water. Copper corrosion products have been examined ex-situ by SEM and characterized by XPS and SIMS. XPS strongly indicates a corrosion product containing both oxygen and hydrogen. SIMS shows that oxygen is mainly present in the outer 0.3. μm surface region and that hydrogen penetrates to depths well below the corrosion product. Thermal desorption spectroscopy shows that the reaction product formed near room-temperature is less stable than that formed in air at 350. °C.