Issue
J. Phys. IV France
Volume 03, Number C7, Novembre 1993
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
Page(s) C7-783 - C7-788
DOI https://doi.org/10.1051/jp4:19937123
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés

J. Phys. IV France 03 (1993) C7-783-C7-788

DOI: 10.1051/jp4:19937123

Preparation of hexaferrite multilayers by tape casting

D. ROUSSELLE and D. AUTISSIER

CEA/DAM, Centre d'Etudes de Bruyères-le-Châtel, BP. 12, 91680 Bruyères-le-Châtel, France


Abstract
Tape casting technics were used to realize a screen with continuous change in characteristics. Different hexaferrite compositions owned by the Ba3Co2-xZnxFe24O41 (Z) family were synthetized by coprecipitation method and calcined at 1200 °C in air. Then a slurry containing this powder is slip casted using tape casting. The tapes are dried under magnetic fied in order to orient the magnetic platelet-shaped particles. Multi-sheets realized with different tapes by hot pressing (65 °C, 4 MPa) are sintered at 1270 °C in air. The coefficient of reflexion measured on single composition multi-sheets (Co2Z, Co1.5Zn0.5Z or CoZnZ) is compared to the computed value of a multi-composition multi-sheet which is Co2Z/Co1.5Zn0.5Z/CoZnZ.



© EDP Sciences 1993