PIEZOELECTRIC CERAMIC COMPOSITION

PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic composition constituting a piezoelectric element in which both electromechanical coupling coefficient Kp and mechanical quality coefficient Qm exhibit high value. SOLUTION: The piezoelectric ceramic composition contains (a) perovskite type PbZ...

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Bibliographic Details
Main Authors MATSUYAMA TAKAHISA, FUKUYASU SHIGEO
Format Patent
LanguageEnglish
Published 22.09.2005
Edition7
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic composition constituting a piezoelectric element in which both electromechanical coupling coefficient Kp and mechanical quality coefficient Qm exhibit high value. SOLUTION: The piezoelectric ceramic composition contains (a) perovskite type PbZrO3, (b) perovskite type PbTiO3and (3) multiple perovskite type Pb(Mn1/3Sb2/3)O3, in which the relative quantity of each of the component (a), the component (b) and the component (c) satisfies a condition of 1.02≤2a+b≤1.10 and 0.01≤b≤0.11 in general formula, Pb(ZraTi1-a)1-b(Mn1/3Sb2/3)bO3. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20040127707