Electrical Properties of Sr&lt;sub&gt;x&lt;/sub&gt;Bi&lt;sub&gt;4-x&lt;/sub&gt;Ti&lt;sub&gt;3-x&lt;/sub&gt;Ta&lt;sub&gt;x&lt;/sub&gt;O&lt;sub&gt;12&lt;/sub&gt; (0≦x≦1) Lead-Free Piezoelectric Ceramics

The (1-x)[Na 0.5 Bi 2.5 Ta 2 O 9 ]x[Sr 0.8 Bi 2.15 Ta 2 O 9 ] (0≤x≤1) solid solution ceramics were synthesized using a conventional sintering method. All the ceramic samples consisted of a single phase with an orthorhombic symmetry A2 1 am and showed well-developed polarization-electric field hysteresis loops. The temperature dependence of the dielectric constant revealed that the Curie temperature T c linearly decreased with an increase in x from 780°C(x=0) to 410°C(x=1.0). The maximum electromechanical coupling factor (k p = 8.6 %) and mechanical quality factor (Q m = 7000) with a radial-extensional mode were obtained for the x=0.75 samples.

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Electrical Properties of Na0.5Bi2.5Ta2O9-Sr1-xBi2+yTa2O9 Solid Solution Ceramics

Takeda

Okamura

Shiosaki

2004

KEM

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Electrical Properties of Sr<sub>x</sub>Bi<sub>4-x</sub>Ti<sub>3-x</sub>Ta<sub>x</sub>O<sub>12</sub> (0≦x≦1) Lead-Free Piezoelectric Ceramics

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Electrical Properties of Na<sub>0.5</sub>Bi<sub>2.5</sub>Ta<sub>2</sub>O<sub>9</sub>-Sr<sub>1-x</sub>Bi<sub>2+y</sub>Ta<sub>2</sub>O<sub>9</sub> Solid Solution Ceramics

Electrical Properties of Na<sub>0.5</sub>Bi<sub>2.5</sub>Ta<sub>2</sub>O<sub>9</sub>-Sr<sub>1-x</sub>Bi<sub>2+y</sub>Ta<sub>2</sub>O<sub>9</sub> Solid Solution Ceramics

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