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2 597 352

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IPC

C04B35/472(2006-01-01)

H01L41/187(2006-01-01)

(21) (22)

Application

2015132966/03, 2015-08-06

(24)

Start date

2015-08-06

(22)

Actual filing date

2015-08-06

(45)

Published

2016-09-10

(72)

Inventor

Reznichenko Larisa AndreevnaAndryushin Konstantin PetrovichVerbenko Ilya AleksandrovichAndryushina Inna NikolaevnaShilkina Lidiya AleksandrovnaAbubakarov Abu GelanievichRazumovskaya Olga NikolaevnaYurasov Yurij Igorevich

(73)

Holder

Federalnoe Gosudarstvennoe Avtonomnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Federalnyj Universitet"

PIEZOELECTRIC CERAMIC MATERIAL Russian patent published in 2016 - IPC C04B35/472 H01L41/187

Abstract RU 2597352 C1

FIELD: ceramic industry.

SUBSTANCE: invention relates to a piezoelectric ceramic material based on lead titanate. Piezoelectric ceramic material contains oxides at following ratio of initial components, wt%: PbO 56.35-61.02, SrO 5.81-8.24, BaO 3.20-4.54, TiO₂ 28.01-28.91, GeO₂ 1.96.

EFFECT: technical result is reduction of values of electromechanical coupling factor of radial oscillation mode to K_p= 0,06 -0,07 , increase in mechanical q-factor to Q_M= 1539-2135 while maintaining high electromechanical coupling factor of thickness of oscillation mode K_t= 0,25 -0,38 , piezoelectric modulus d₃₃= 10-19 pC/N with relative permittivity ε₃₃ ^T/ε₀= 223-227.

1 cl, 3 tbl

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RU 2 597 352 C1

Authors

Reznichenko Larisa Andreevna

Andryushin Konstantin Petrovich

Verbenko Ilya Aleksandrovich

Andryushina Inna Nikolaevna

Shilkina Lidiya Aleksandrovna

Abubakarov Abu Gelanievich

Razumovskaya Olga Nikolaevna

Yurasov Yurij Igorevich

Dates

2016-09-10—Published

2015-08-06—Filed