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IPC

C04B35/495(2006-01-01)

H01L41/187(2006-01-01)

(21) (22)

Application

2014149868/03, 2014-12-11

(24)

Start date

2014-12-11

(22)

Actual filing date

2014-12-11

(45)

Published

2016-04-10

(72)

Inventor

Reznichenko Larisa AndreevnaTalanov Mikhail ValerevichVerbenko Ilja AleksandrovichShilkina Lidija Aleksandrovna

(73)

Holder

Federalnoe Gosudarstvennoe Avtonomnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovanija Federalnyj Universitet"

PIEZOELECTRIC CERAMIC MATERIAL Russian patent published in 2016 - IPC C04B35/495 H01L41/187

Abstract RU 2580116 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to a piezoelectric ceramic material based on lead titanate. Technical result of the invention is to increase values of relative permittivity $ε_{33}^{T} / ε_{0} = 13500 - 16460$ while maintaining high values of piezoelectric module |d₃₁|=131-156 pC/N, and the electromechanical coupling coefficient under planar vibration mode K_p=0.19-0.24. Piezoelectric ceramic material based on lead titanate comprises wt.%: PbO 65.61-65.92, Nb₂O₅ 19.28-20.56, TiO₂ 6.19-7.46, BaO 2.37-2.38, MgO 0.61-0.68, NiO 3.46-3.64, ZnO 0.89-0.95.

EFFECT: increasing the values of relative permittivity and electromechanical coupling coefficient of the planar vibration mode.

1 cl, 2 tbl, 1 dwg

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RU 2 580 116 C1

Authors

Reznichenko Larisa Andreevna

Talanov Mikhail Valerevich

Verbenko Ilja Aleksandrovich

Shilkina Lidija Aleksandrovna

Dates

2016-04-10—Published

2014-12-11—Filed