FERRITE MATERIAL FOR ACOUSTIC-ELECTRONIC DEVICES Russian patent published in 1994 - IPC

Abstract SU 1762671 A1

FIELD: acoustic-electronics. SUBSTANCE: invention relates to ferrite material intended for use in delay lines, filters, storages and processors. Proposed material includes, mole per cent: Fe₂O₃ 46-52; CuO 0.3-5.0; CoO 0.5-2.0; Yb₂O₃ 0.02-1.80; Ni being the balance. Material is characterized with increased value of retuning of delay Δτ/τ_s=10.5-12.8 and close to 100% output of material good for machining with low damping α_s=0,5-2.0 dB/cm on frequency 7 MHz. EFFECT: improved acoustic properties. 1 tbl

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SU 1 762 671 A1

Authors

Andreeva I.N.

Vasil'Eva E.O.

Rodionova M.K.

Jurinskaja A.K.

Dates

1994-04-15—Published

1990-05-03—Filed