Method of making ferroelectric-ferromagnetic composite materials
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United States of America Patent
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Feb 11, 1997
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N/A
app pub date -
Apr 1, 1996
filing date -
Apr 1, 1996
priority date (Note) -
Expired
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Abstract
Barium-strontium titanate ferroelectric materials and AFe.sub.2 O.sub.4 -type ferrite ferromagnetic materials may be consolidated into a ferroelectric-ferromagnetic composite having useful electromagnetic interference attenuation properties over a wide range of electromagnetic frequencies by fluxing the barium-strontium titanate with a combination of (1) a lithium compound and barium oxide or (2) copper oxide and barium oxide and thereafter mixing the fluxed ferroelectric with the ferromagnetic and sintering the combination at reduced temperature in the range of 1060.degree. C. to 1150.degree. C.
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