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首页> 外文期刊>Materials Chemistry and Physics >Effects of ZnO on piezoelectric properties of 0.01PMW-0.41PNN-0.35PT-0.23PZ ceramics.
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Effects of ZnO on piezoelectric properties of 0.01PMW-0.41PNN-0.35PT-0.23PZ ceramics.

机译：ZnO对0.01PMW-0.41PNN-0.35PT-0.23PZ陶瓷压电性能的影响。

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摘要

The microstructure and piezoelectric properties of the 0.01Pb(Mg1/2W1/2)O-3-0.41Pb(Ni1/3Nb1/3)O-3-0.35PbTiO(3)-0.23PbZrO(3)+0.1 and 0.3 wt.% Y2O3 + x ZnO ceramics were investigated. The crystal structure changed from psudocubic to tetragonal when ZnO added. The average grain size increased from 4 mum to 8 mum with the addition of ZnO by oxygen diffusion, even if the growth rate was low. When ZnO added until 0.5 wt.%, the epsilon(33)(T)/epsilon(0), kp and d(33) values of specimens were slightly increased regardless Y2O3 contents. The curie point of PMW-PNN-PT-PZ ceramics were increased from 162degreesC to 232degreesC, as increasing the ZnO contents. When ZnO added, the kp of specimens slightly was increased regardless Y2O3 contents. The mechanical quality factors were abruptly decreased regardless Y2O3 contents, when ZnO added until 0.75 wt.%. The optimized piezoelectric properties were obtained; d(33) = 730 (pC/N), k(p) = 60, Q(m) = 50, and epsilon(33)(T)/epsilon(0) = 4750, when PMW-PNN-PT-PZ + 0.3 wt.% Y2O3 + 0.5 wt.% ZnO sintered at 1200 degreesC for 1 h. (C) 2004 Elsevier B.V. All rights reserved.
机译：0.01Pb（Mg1 / 2W1 / 2）O-3-0.41Pb（Ni1 / 3Nb1 / 3）O-3-0.35PbTiO（3）-0.23PbZrO（3）+0.1和0.3 wt。对％Y2O3 + x ZnO陶瓷进行了研究。当添加ZnO时，晶体结构从伪立方变为四方晶。即使生长速率低，通过氧扩散添加ZnO，平均晶粒尺寸也从4微米增加到8微米。当添加ZnO到0.5 wt。％时，样品中的ε（33）（T）/ε（0），kp和d（33）值都会略有增加，而与Y2O3的含量无关。随着ZnO含量的增加，PMW-PNN-PT-PZ陶瓷的居里点从162℃增加到232℃。当添加ZnO时，无论Y2O3含量如何，样品的kp都会略有增加。当添加ZnO至0.75wt。％时，无论Y 2 O 3含量如何，机械品质因数突然降低。获得了优化的压电性能；当PMW-PNN-PT-PZ时，d（33）= 730（pC / N），k（p）= 60，Q（m）= 50和epsilon（33）（T）/ epsilon（0）= 4750 +0.3重量％的Y 2 O 3 +0.5重量％的ZnO在1200℃下烧结1小时。 （C）2004 Elsevier B.V.保留所有权利。

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