1956
DOI: 10.1149/1.2430387
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Oxidation of Copper to Cu[sub 2]O and CuO (600°–1000°C and 0.026–20.4 atm Oxygen)

Abstract: Oxygen free-high conductivity copper was oxidized to CuO and Cu20 over the temperature range 600~176 in pure oxygen (0.026-20.4 arm). Correlation of weight gained, W, and time, t, was achieved through the use of the equation:Kp is the parabolic rate constant and K~ is a constant. Pressure variation had no effect on the magnitude of K~, if the ratio Cu20/CuO was constant. Quantitative x-ray diffraction analysis of the scale disclosed approximately 96% Cu~O at high and low pressures for temperatures above 800~ B… Show more

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Cited by 44 publications
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“…The oxidation behavior of copper has therefore received considerable interest for a very long time [1][2][3] . At temperatures above 600 °C, it is believed that the oxidation is controlled by the lattice diffusion of copper ions through a Cu 2 O layer [4][5][6] . In contrast, the reported kinetic data on the oxidation below 500 °C varied significantly 7 .…”
Section: Introductionmentioning
confidence: 99%
“…The oxidation behavior of copper has therefore received considerable interest for a very long time [1][2][3] . At temperatures above 600 °C, it is believed that the oxidation is controlled by the lattice diffusion of copper ions through a Cu 2 O layer [4][5][6] . In contrast, the reported kinetic data on the oxidation below 500 °C varied significantly 7 .…”
Section: Introductionmentioning
confidence: 99%
“…According to the agreement with the oxidation activation energy, it could be assumed that diffusion in the Cu 2 O layer at a broader temperature range is the rate-determining step which is inferred to be the outward diffusion of copper atoms in Cu 2 O. 8,12,24) In general, the oxidation between copper and oxygen occurs when copper is exposed to the atmosphere at high temperatures. In the melted mark specimens, for further oxidation, the oxidation continues according to whether the copper atoms of the melted mark diffuse outward through the oxide layer to combine with oxygen from the air or oxygen from the air diffuses inward to encounter the copper atoms of the melted mark.…”
Section: Parabolic Rate Constant and Activation Calculationmentioning
confidence: 89%