| Numéro |
J. Phys. Colloques
Volume 33, Numéro C2, Avril 1972
2e CONGRÈS EUROPÉEN DE FERROÉLECTRICITÉ
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|---|---|---|
| Page(s) | C2-114 - C2-115 | |
| DOI | https://doi.org/10.1051/jphyscol:1972237 | |
2e CONGRÈS EUROPÉEN DE FERROÉLECTRICITÉ
J. Phys. Colloques 33 (1972) C2-114-C2-115
DOI: 10.1051/jphyscol:1972237
Faculté des Sciences, Laboratoire de Diélectriques et Ferroélectriques 6, Bd Gabriel, 21, Dijon, France
J. Phys. Colloques 33 (1972) C2-114-C2-115
DOI: 10.1051/jphyscol:1972237
INFLUENCE OF HUMIDITY ON POTENTIAL DISTRIBUTION IN BaTiO3 CERAMICS AND CRYSTALS
G. ORMANCEYFaculté des Sciences, Laboratoire de Diélectriques et Ferroélectriques 6, Bd Gabriel, 21, Dijon, France
Abstract
A method is described which permits the measurement of potential distribution
under d. c. field on BaTiOs. It is found that humidity exercises a great influence on pure crystals
between 10 % and 60 % of relative humidity. These results depend to a large extent on the state of
the surface.
The study of crystals doped with OH or iron has shown that the influence of humidity
on pure crystal is due to a partial dopage with OH.
We give the hypotheses of calculation for these distributions of potential.