EFFECTS OF VARIATIONS IN STOICHIOMETRY ON M-TYPE HEXAFERRITES

Authors
SURIG C BONNENBERG D HEMPEL KA KARDUCK P KLAAR HJ SAUER C
Citation
C. Surig et al., EFFECTS OF VARIATIONS IN STOICHIOMETRY ON M-TYPE HEXAFERRITES, Journal de physique. IV, 7(C1), 1997, pp. 315-316
Citations number
3
Categorie Soggetti
Physics
Journal title
Journal de physique. IV → ACNP
ISSN journal
11554339
Volume
7
Issue
C1
Year of publication
1997
Pages
315 - 316
Database
ISI
SICI code
1155-4339(1997)7:C1<315:EOVISO>2.0.ZU;2-F
Abstract
Barium hexaferrite particles prepared by sol-gel technique yield best magnetic characteristics if a large barium surplus is used. Therefore, the powder sample has to be etched after the annealing process in ord er to get samples without intermediate phases, The used temperatures b elow 900 degrees C and times shorter than 1h cause nanocrystalline hex aferrite particles with a specific saturation magnetization above 700 Acm(2)/g and a coercivity up to 470 kA/m.