Hard magnetic core particles and a method of making same
23 Hard magnetic core particles for use in the development of electrostatic latent images are produced by combining ferric oxide, a strontium oxide precursor, an oxygenated boron compound and a binder to form a mixture, wherein the strontium oxide precursor is preferably present in an amount that pr...
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| Format | Patent |
| Language | English |
| Published |
16.12.2008
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| Online Access | Get full text |
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| Summary: | 23 Hard magnetic core particles for use in the development of electrostatic latent images are produced by combining ferric oxide, a strontium oxide precursor, an oxygenated boron compound and a binder to form a mixture, wherein the strontium oxide precursor is preferably present in an amount that provides SrO in a molar amount that is in excess of a stoichiometric amount that provides a ratio of FeOto SrO of 6/1. The mixture can be formed into green beads and the green beads can be fired to form the hard magnetic core particles. |
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