Growth of Barium Ferrite for Magnetic Optical Devices.
Abstract
Single crystals of BaFe12O19 grown from a BaO-B2O3-PbO flux show the classical hexagonal cells hiterto known to occur in constitutionally supercooled solidified metallic alloys. The size of the cells varies from 10-20 micrometers increasing with the amount of the PbO in the flux. Electron microprobe analysis across both longitudinal (1010) and transveral (0001) slices of the cells shows a strong periodical variation of Ca and Sr inpurities as well as a slight periodical variation of the concentration of Ba, Pb and Fe at the cell boundaries of the constitutionally supercooled BaFe12O19 crystals. The suppression of the cellular growth has not been successful so far. The use of high purity BaCO as a source for BaO is the most recommended future growth experiment. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1973
- Accession Number
- AD0786666
Entities
People
- J. Aidelberg
- J. Flicstein
- M. Schieber
Organizations
- Hebrew University of Jerusalem