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US08119024B1 Piezoelectric single crystal ingot, producing method therefor and piezoelectric single crystal device 有权
压电单晶锭，其制造方法和压电单晶器件

Piezoelectric single crystal ingot, producing method therefor and piezoelectric single crystal device
摘要：
A piezoelectric single crystal ingot is produced by the Bridgman method and contains a relaxor having a composition of Pb(Mg, Nb)O3 and lead titanate having a composition of PbTiO3. In the piezoelectric single crystal ingot, the compositional fraction of lead titanate does not vary monotonically in the growth direction of a single crystal and the variation of the compositional fraction thereof is within the range of ±2.0 mole percent over a length of 30 mm or more. A piezoelectric single crystal device is produced from the piezoelectric single crystal ingot.
摘要（中）：

通过Bridgman法制造压电单晶锭，并含有具有Pb（Mg，Nb）O 3组成的弛豫和PbTiO 3组成的钛酸铅。 在压电单晶锭中，钛酸铅的组成分数在单晶的生长方向上不变化，其组成分数的变化在30mm以上的长度的±2.0摩尔％的范围内 。 由压电单晶锭制造压电单晶器件。

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