圧電セラミックスにおける電界誘起歪量の温度依存性

概要

論文の詳細を見る
The temperature dependence of piezoelectric constant (d_<31>) and the strain characteristics of the (Pb_<0.845>Ba_<0.105> Sr_<0.05>) ((Zr_xTi_<1-x>)_<0.95>Sn_<0.045>Nb_<0.005>)0_3 series (x=0.49, 0.52, 0.55) , in which the grain size was controlled by hot pressing (HP) , were investigated between 196 and 90℃. The piezoelectric constant (d_<31>) was measured using an inrpedance analyzer (YHP4192A) . The strain characteristics were measured by applying DC electric field (1.0kV/mm) and the durability under repetitious DC electric field (1.0 kV/mm, I Hz) . The results showed that the piezoelectric constant (d_<31>) and the actually found strain (σ) under DC electric field increase with increasing temperature. Between 196 and 90℃, the actually found strain (σ) was larger than calculated value (σ_<cal>) ' obtained by multiplying the d_<31> with DC electric field. This difference (σ-σ_<cal>) was caused by the strain (σ_p) of domainial reorientation alone the intensity of electric field. It is found that the σ_p Was nearly zero at 196℃ (liquid nitrogen tem perature) , and increases with increasing temperature. Furthermore, it was clarified that the temperature de pendence of σ_p varied with the composition and grain size. It is shown that the temperature dependence of σ_p is related to that of the binding force of domain (σ_b) . In the durability test between 196 to 90℃, the σ became small after the test. The change of σ increased with increasing temperature. It is found that the decrease of σ_p led to that of σ. We found that the change of σ_p is dependent on the composition and grain size.
社団法人日本セラミックス協会の論文
1995-01-01

圧電セラミックスにおける電界誘起歪量の温度依存性

スポンサーリンク

概要

著者

関連論文

スポンサーリンク