FIELD: chemistry.
SUBSTANCE: wet grinding of the stoichiometric mixture of strontium carbonate and iron oxide is carried out in an acidic medium containing calcium silicate, polyacrylic acid and isopropanol in the following ratio, wt %: 0.2-0.6 of polyacrylic acid, 4.0-10.0 of isopropyl alcohol, 0.3-1.2 of calcium silicate, 28-45 of water, stoichiometric mixture of strontium carbonate and iron oxide - the rest.
EFFECT: increased coercive force of strontium hexaferrite magnetization, and increased activity during raw ferrite components mixture in strontium hexaferrite production.
1 tbl, 3 ex
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| MIXTURE TO PRODUCE POLYCRYSTALLINE STRONTIUM HEXAFERRITE | 1989 |
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RU1609340C |
