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2 712 083

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IPC

C04B35/495(2006-01-01)

C04B35/46(2006-01-01)

H01L41/187(2006-01-01)

(21) (22)

Application

2019124151, 2019-07-24

(24)

Start date

2019-07-24

(22)

Actual filing date

2019-07-24

(45)

Published

2020-01-24

(72)

Inventor

Reznichenko Larisa AndreevnaDudkina Svetlana IvanovnaRazumovskaya Olga NikolaevnaAndryushin Konstantin PetrovichAndryushina Inna NikolaevnaVerbenko Ilya Aleksandrovich

(73)

Holder

Federalnoe Gosudarstvennoe Avtonomnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Federalnyj Universitet"

PIEZOELECTRIC CERAMIC MATERIAL BASED ON LITHIUM METANIOBATE Russian patent published in 2020 - IPC C04B35/495 C04B35/46 H01L41/187

Abstract RU 2712083 C1

FIELD: electrical engineering.

SUBSTANCE: invention relates to piezoelectric engineering and can be used to create high-frequency piezoelectric transducers operating in a wide temperature range of 20–800 °C and mechanical loads of up to 150 MPa. Material has the following composition, wt% LiNbO₃ 95.9–96.5, CaO 0.02–0.04, Li₂O 0.67–0.87, B₂O₃ 0.88–1.18, SiO₂ 1.34–1.72, TiO₂ 0.39–0.49.

EFFECT: high stability of piezoelectric modulus d₃₃ in pressure interval up to 150 MPa, reduction of tgδ, higher mechanical strength.

1 cl, 3 tbl

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RU 2 712 083 C1

Authors

Reznichenko Larisa Andreevna

Dudkina Svetlana Ivanovna

Razumovskaya Olga Nikolaevna

Andryushin Konstantin Petrovich

Andryushina Inna Nikolaevna

Verbenko Ilya Aleksandrovich

Dates

2020-01-24—Published

2019-07-24—Filed