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2 680 155

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(51)

IPC

C04B35/491(2006-01-01)

(21) (22)

Application

2018114541, 2018-04-19

(24)

Start date

2018-04-19

(22)

Actual filing date

2018-04-19

(45)

Published

2019-02-18

(72)

Inventor

Panich Aleksandr AnatolevichPanich Anatolij EvgenevichSkrylev Aleksandr Vladimirovich

(73)

Holder

Federalnoe Gosudarstvennoe Avtonomnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Federalnyj Universitet"

PIEZOELECTRIC CERAMIC MATERIAL Russian patent published in 2019 - IPC C04B35/491

Abstract RU 2680155 C1

FIELD: technological processes.

SUBSTANCE: invention relates to the piezoelectric ceramic materials, and can be used in the computer engineering for the memory devices memory arrays development. Piezoelectric ceramic material including PbTiO₃, PbZrO₃, PbW_1/2Cd_1/2O₃, additionally contains PbW_3/5Li_2/5O₃ and Yb₂O₃ in the following components ratio, wt.%: PbTiO₃ 36.19–36.58; PbZrO₃ 55.39–55.99; PbW_1/2Cd_1/2O₃ 2.43–2.80; PbW_3/5Li_2/5O₃ 4.66–5.00; Yb₂O₃ 0.36–0.60.

EFFECT: technical result of the invention is the coercive force reduction while maintaining the piezoelectric parameters sufficiently high values, including the Curie points of not lower than 300 °C.

1 cl, 3 tbl, 5 ex

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RU 2 680 155 C1

Authors

Panich Aleksandr Anatolevich

Panich Anatolij Evgenevich

Skrylev Aleksandr Vladimirovich

Dates

2019-02-18—Published

2018-04-19—Filed