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Piezoelectric ceramic, method for making same, piezoelectric element, liquid discharge head, ultrasonic motor, and dust cleaner
A barium titanate piezoelectric ceramic having good piezoelectric properties and mechanical strength and a piezoelectric element that includes the ceramic are provided. A method for making a piezoelectric ceramic includes forming a compact containing barium titanate particles, sintering the compact, and decreasing the temperature of the compact. The sintering includes (A) increasing the temperature of the compact to a temperature range of a shrinking process of the compact; (B) increasing the temperature of the compact to a temperature range of a liquid phase sintering process of the compact; (C) decreasing the temperature of the compact to the temperature range of the shrinking process of the compact; and (D) retaining the third temperature.
Piezoelectric ceramic, method for making same, piezoelectric element, liquid discharge head, ultrasonic motor, and dust cleaner
A barium titanate piezoelectric ceramic having good piezoelectric properties and mechanical strength and a piezoelectric element that includes the ceramic are provided. A method for making a piezoelectric ceramic includes forming a compact containing barium titanate particles, sintering the compact, and decreasing the temperature of the compact. The sintering includes (A) increasing the temperature of the compact to a temperature range of a shrinking process of the compact; (B) increasing the temperature of the compact to a temperature range of a liquid phase sintering process of the compact; (C) decreasing the temperature of the compact to the temperature range of the shrinking process of the compact; and (D) retaining the third temperature.
Piezoelectric ceramic, method for making same, piezoelectric element, liquid discharge head, ultrasonic motor, and dust cleaner
MATSUDA TAKANORI (author) / SAITO HIROSHI (author) / FURUTA TATSUO (author) / HAYASHI JUMPEI (author) / WATANABE TAKAYUKI (author) / IFUKU TOSHIHIRO (author)
2017-04-04
Patent
Electronic Resource
English
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