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Piezoelectric ceramic compact and piezoelectric ceramic device using the same
Piezoelectric ceramic compact and piezoelectric ceramic device using the same
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机译:压电陶瓷成型体和使用该压电陶瓷成型体的压电陶瓷装置
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摘要
Provided is a piezoelectric ceramic compact useful as a material for a piezoelectric ceramic compact device or the like, having SrBi4Ti4O15 as a main component, containing no or a small amount of lead or lead compound, and exhibiting a Qmax improved to a level permitting practical use application. The piezoelectric ceramic compact includes a bismuth layer compound as a main component composed of Sr, Bi, Ti and oxygen, and when the molar ratio of Sr, Bi and Ti of the bismuth layer compound as the main component is a:b:c, the relations of 0.13=a/c0.25 and 3.5=(2a+3b)/c=3.75 are satisfied.
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机译:提供了一种压电陶瓷成型体,其用作压电陶瓷成型体等的材料,具有SrBi4Ti4O15作为主要成分,不包含或包含少量的铅或铅化合物,并且表现出Qmax提高到可以实际使用的水平。应用。压电陶瓷成形体以铋层化合物为主要成分,其由Sr,Bi,Ti和氧构成,且铋层化合物的Sr,Bi和Ti的摩尔比为a:b:c时,满足0.13 <= a / c <0.25和3.5 <=(2a + 3b)/ c <= 3.75的关系。
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