Piezoelectric material, piezoelectric element, and electronic apparatus
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United States of America Patent
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Sep 5, 2017
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N/A
app pub date -
Oct 30, 2013
filing date -
Nov 2, 2012
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Abstract
Provided is a lead-free piezoelectric material having satisfactory and stable piezoelectric constant and mechanical quality factor in a wide practical use temperature range. The piezoelectric material includes a perovskite-type metal oxide represented by Formula (1): (Ba1−xCax)a(Ti1−yZry)O3 (wherein, 1.00≦a≦1.01, 0.125≦x≦0.300, and 0.041≦y≦0.074), Mn, and Mg. The content of Mn is 0.12 parts by weight or more and 0.40 parts by weight or less based on 100 parts by weight of the perovskite-type metal oxide on a metal basis. The content of Mg is 0.10 parts by weight or less (excluding 0 part by weight) based on 100 parts by weight of the perovskite-type metal oxide on a metal basis.
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International Classification(s)
- H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....
- H04N:PICTORIAL COMMUNICATION, e.g. TELEVISION
- C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....
- B41J:TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. M....
- H02N:ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- B08B:CLEANING IN GENERAL; PREVENTION OF FOULING IN GENE....
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
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