Very fine strontium powder for magnetic ceramics |
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Authors: | V V Nepomnyashchii T V Mosina A K Radchenko G Ya Kalutskii |
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Affiliation: | (1) Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev |
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Abstract: | The possibility of preparing very fine strontium ferrite powder with application of preliminary mechanical treatment in a
rolling mill is studied. It is established that powder preparation time is shortened by a factor of 2.5–3 and the amount of
coarse particles is reduced. The method used for preparing very fine powder makes it possible to control the size of particles
and their specific surface. The powder may be used for preparing permanent magnets with a high specific magnetizability (above
32 kJ/m3).
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Translated from Poroshkovaya Metallurgiya, Nos. 3-4(448), pp. 3–6, March–April, 2006. |
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Keywords: | strontium ferrite fine powder magnetic properties |
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