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Piezoelectric material, piezoelectric element, multilayered piezoelectric element, liquid discharge head, liquid discharge apparatus, ultrasonic motor, optical apparatus, vibratory apparatus, dust removing device, image pickup apparatus, and electronic equipment
To provide a lead-free piezoelectric material having a high and stable piezoelectric constant in a wide operating temperature range. The piezoelectric material contains a perovskite type metal oxide having the general formula (1), Mn, Mg, (Ba1-xCax)a(Ti1-y-zSnyZrz)O3 (1) (wherein x is in the range of 0.050≰x≰0.200, y is in the range of 0.010≰y≰0.040, and z is in the range of 0≰z≰0.040, provided that x≧0.375(y+z)+0.050, and a is in the range of 0.9925+b≰a≰1.0025+b) wherein the amount b (mol) of Mn on a metal basis per mole of the metal oxide is in the range of 0.0048≰b≰0.0400, and the Mg content on a metal basis per 100 parts by weight of the metal oxide is 0.100 parts by weight or less.
Piezoelectric material, piezoelectric element, multilayered piezoelectric element, liquid discharge head, liquid discharge apparatus, ultrasonic motor, optical apparatus, vibratory apparatus, dust removing device, image pickup apparatus, and electronic equipment
To provide a lead-free piezoelectric material having a high and stable piezoelectric constant in a wide operating temperature range. The piezoelectric material contains a perovskite type metal oxide having the general formula (1), Mn, Mg, (Ba1-xCax)a(Ti1-y-zSnyZrz)O3 (1) (wherein x is in the range of 0.050≰x≰0.200, y is in the range of 0.010≰y≰0.040, and z is in the range of 0≰z≰0.040, provided that x≧0.375(y+z)+0.050, and a is in the range of 0.9925+b≰a≰1.0025+b) wherein the amount b (mol) of Mn on a metal basis per mole of the metal oxide is in the range of 0.0048≰b≰0.0400, and the Mg content on a metal basis per 100 parts by weight of the metal oxide is 0.100 parts by weight or less.
Piezoelectric material, piezoelectric element, multilayered piezoelectric element, liquid discharge head, liquid discharge apparatus, ultrasonic motor, optical apparatus, vibratory apparatus, dust removing device, image pickup apparatus, and electronic equipment
OSHIMA KANAKO (author) / SAITO HIROSHI (author) / FURUTA TATSUO (author) / MATSUDA TAKANORI (author) / MURAKAMI SHUNSUKE (author)
2017-01-03
Patent
Electronic Resource
English
IPC:
H01L
Halbleiterbauelemente
,
SEMICONDUCTOR DEVICES
/
B06B
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
,
Erzeugen oder Übertragen mechanischer Schwingungen allgemein
/
B08B
Reinigen allgemein
,
CLEANING IN GENERAL
/
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
B41J
TYPEWRITERS
,
Schreibmaschinen
/
C04B
Kalk
,
LIME
/
G02B
Optische Elemente, Systeme oder Geräte
,
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
/
H02N
Elektrische Maschinen, soweit nicht anderweitig vorgesehen
,
ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
| European Patent Office | 2016