Mass transport in cuprous oxide

Ochin, P.; Petot-Ervas, G.; Petot, C.

doi:10.1016/0022-3697(85)90158-1

Cited by 9 publications

(2 citation statements)

References 14 publications

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“…-Arrhenius plot for chemical diffusion coefficients D for Cu20. Results of Maluenda [4] and Ochin [5] are deduced from electrical conductivity.…”

Section: Coo Single Crystals -mentioning

confidence: 99%

“…The diffusion takes place under chemical potential gradients, which correspond to chemical diffusion conditions [1]. It is rather easy to follow the changes with time of the concentration of point defects related to non stoichiometry by thermogravimetry or electrical conductivity; transitories have been analysed for Co1-xO and Cru2 --0 giving a chemical diffusion coefficient [2][3][4][5] which is proportional to the cation vacancy VCo or V 01 diffusion coefficient. These defects are responsible for the departure from stoichiometry and their concentrations dominate those of all other types of defects.…”

Section: Introductiorlmentioning

confidence: 99%

See 1 more Smart Citation

Chemical diffusion for CoO and Cu2O deduced from creep transitories

Clauss¹,

Domínguez‐Rodríguez²,

Castaing³

1986

Rev. Phys. Appl. (Paris)

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2014 A la suite d'un changement de pression d'oxygène, l'analyse du fluage transitoire nous a permis de déterminer un coefficient de diffusion chimique pour les monocristaux et polycristaux de CoO et Cu2O. Le retour à l'équilibre de la concentration des défauts ponctuels se fait au même rythme pour tous les défauts concernés. Les joints de grains n'accélèrent pas ce processus de façon sensible. Abstract. 2014 The analysis of creep transitories after a change in oxygen partial pressure, allowed us to determine chemical diffusion coefficients for CoO and Cu2O, single-and polycrystals. The rate of equilibration of point defect concentrations is similar for all defects. Grain boundaries do not seem to accelerate the process.

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“…-Arrhenius plot for chemical diffusion coefficients D for Cu20. Results of Maluenda [4] and Ochin [5] are deduced from electrical conductivity.…”

Section: Coo Single Crystals -mentioning

confidence: 99%