Ferroelectrics
Ferroelectrics
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DOI：
10.1002/0471238961.0605181810011407.a01.pub2
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发表时间：
2019-12
期刊：
影响因子：
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通讯作者：
Kenji Uchino
中科院分区：
文献类型：
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作者：
Kenji Uchino
测量了PZT系陶瓷Pb_（0.99）Nb_（0.02）[（Zr_（0.6）Sn_（0.4））O_（0.94）Ti_（0.06）]_（0.98）O_（3）在不同温度下由反铁电相到铁电相的场致相变的弹性应变。由于强制转换而产生的可再现的约Δ Δ/Δ的大应变变化可能是数字微位移传感器的希望。在-70 ° C和10°C之间的温度范围内观察到应变曲线中的所谓“反向弯曲”，这也可用作机械夹紧和类似应用的形状记忆器件。
The elastic strain associated with the field-induced transition from an antiferroelectric phase to a ferroelectric one has been measured at several temperatures in a PZT-family ceramic Pb0·99Nb0·02[(Zr0·6Sn0·4)0·94Ti0·06]0·98O3. Reproducible large strain change of about Δℓ/ℓ∼ due to the forced transition may be promising for digital microdisplacement transducers. So-called “inverse hysteresis'’in the strain curve is observed in a temperature range between -70°C and 10°C, which is also useful as a shape memory device for mechanical clamping and similar applications.