ANISOTROPY OF ELECTRICAL-PROPERTIES IN ALPHA-FE2O3 CERAMICS

Santilli, Celso Valentim; Bonnet, J. P.; Dordor, P.; Onillon, M.

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/36663

Title:

ANISOTROPY OF ELECTRICAL-PROPERTIES IN ALPHA-FE2O3 CERAMICS

Author(s):

Institution:

UNIV BORDEAUX 1
Universidade Estadual Paulista (UNESP)

ISSN:

0022-2461

Abstract:

Electrical conductivity and thermoelectric power measurements carried out in a heamatite ceramic showed a strong anisotropy in directions normal and parallel to the uniaxial pressing direction. This behaviour is similar to that verified in alpha-Fe2O3 single crystal. The results suggest that the extended structural defects, generated during sintering, disturb the magnetic order on the (001) planes of alpha-Fe2O3 and limit the mobility of n type carriers.

Issue Date:

15-Nov-1993

Citation:

Journal of Materials Science. London: Chapman Hall Ltd, v. 28, n. 22, p. 6029-6034, 1993.

Time Duration:

6029-6034

Publisher:

Chapman Hall Ltd

Source:

http://dx.doi.org/10.1007/BF00365016

URI:

Access Rights:

Acesso restrito

Type:

outro

Source:

http://repositorio.unesp.br/handle/11449/36663

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