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2 624 473

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IPC

C04B35/491(2006-01-01)

(21) (22)

Application

2016119679, 2016-05-20

(24)

Start date

2016-05-20

(22)

Actual filing date

2016-05-20

(45)

Published

2017-07-04

(72)

Inventor

Dmitrienko Aleksej GennadievichGrishin Aleksej AleksandrovichAndreev Valerij GeorgievichMenshova Svetlana BorisovnaBelakov Evgenij Yurevich

(73)

Holder

Aktsionernoe Obshchestvo Institut Fizicheskikh Izmerenij"

PIEZOCERAMIC MATERIAL Russian patent published in 2017 - IPC C04B35/491

Abstract RU 2624473 C1

FIELD: chemistry.

SUBSTANCE: invention relates to the field of ferro soft piezoceramic materials intended for ultrasonic devices operating in the reception mode, various piezoelectric sensors, and also for devices of monolithic type, such as multilayer piezoelectric actuators. The material including oxides of lead, zirconium, titanium, strontium and bismuth, additionally contains gadolinium and erbium oxides with the following component ratio, wt %: PbO 64.05÷66.84; ZrO₂ 19.11÷19.60; TiO₂ 10.92÷11.20; SrO 1.54÷2.15; Bi₂O₃ 0.72÷1.57; Gd₂O₃ 0.69÷1.18; Er₂O₃ 0.18÷0.25.

EFFECT: production of piezoceramic material with improved electrophysical parameters, increased piezoelectric sensitivity, increased piezomodule, increased coefficient of electromechanical coupling, reduced tangent of the dielectric loss angle.

1 ex, 2 tbl

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RU 2 624 473 C1

Authors

Dmitrienko Aleksej Gennadievich

Grishin Aleksej Aleksandrovich

Andreev Valerij Georgievich

Menshova Svetlana Borisovna

Belakov Evgenij Yurevich

Dates

2017-07-04—Published

2016-05-20—Filed