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Piezoelectric ceramic, method for making the same, piezoelectric element, liquid discharge head, and ultrasonic motor
A piezoelectric ceramic that includes barium titanate and 0.04 mass % or more and 0.20 mass % or less manganese relative to barium titanate. The piezoelectric ceramic is composed of crystal grains. The crystal grains include crystal grains A having an equivalent circular diameter of 30 μm or more and 300 μm or less and crystal grains B having an equivalent circular diameter of 0.5 μm or more and 3 μm or less. The crystal grains A and the crystal grains B individually form aggregates and the aggregates of the crystal grains A and the aggregates of the crystal grains B form a sea-island structure.
Piezoelectric ceramic, method for making the same, piezoelectric element, liquid discharge head, and ultrasonic motor
A piezoelectric ceramic that includes barium titanate and 0.04 mass % or more and 0.20 mass % or less manganese relative to barium titanate. The piezoelectric ceramic is composed of crystal grains. The crystal grains include crystal grains A having an equivalent circular diameter of 30 μm or more and 300 μm or less and crystal grains B having an equivalent circular diameter of 0.5 μm or more and 3 μm or less. The crystal grains A and the crystal grains B individually form aggregates and the aggregates of the crystal grains A and the aggregates of the crystal grains B form a sea-island structure.
Piezoelectric ceramic, method for making the same, piezoelectric element, liquid discharge head, and ultrasonic motor
KUBOTA MAKOTO (author) / FURUTA TATSUO (author) / SAITO HIROSHI (author) / IFUKU TOSHIHIRO (author) / TAKEDA KENICHI (author) / FUKUI TETSURO (author)
2015-09-08
Patent
Electronic Resource
English
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