Effect of carbon black on properties of 0-3 piezoelectric ceramic/cement composites
Effect of carbon black on properties of 0-3 piezoelectric ceramic/cement composites
复制标题
炭黑对0-3压电陶瓷/水泥复合材料性能的影响
DOI：
10.1016/j.cap.2009.01.011
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发表时间：
2009-11-01
影响因子：
2.4
通讯作者：
Cheng Xin
中科院分区：
文献类型：
--
作者：
Huang Shifeng;Li Xue;Cheng Xin
以硫铝酸盐水泥和压电陶瓷[0.08Pb(Li-1/Nb-4(3/4))O-3中心点0.47PbTiO(3)中心点0.45PbZrO(3)] [P(LN)ZT]为原料，采用压缩法制备了0-3水泥基压电复合材料。研究了炭黑含量对压电、介电性能、电导率和阻抗的影响。结果表明：随着炭黑添加量的增加，复合材料的压电应变常数d（33）和压电电压常数g（33）逐渐增大；当炭黑含量为0.3 wt%时，复合材料的压电应变常数d（33）和压电电压常数933均达到最大值，分别为17.45 pC N-1和36.3 mV m N-1。随着炭黑含量的增加，复合材料的介电常数epsilon(r)、介电损耗tan delta和电导率sigma均增大，而阻抗减小。在测试的频率范围内，炭黑含量越多，epsilon(r)值越高。平面机电耦合系数K-p、厚度机电耦合系数K-p和机械品质因子Q(m)几乎不受炭黑含量的影响。爱思唯尔B.V.版权所有
0-3 cement-based piezoelectric composites were fabricated using sulphoaluminate cement and piezoelectric ceramic [0.08Pb(Li-1/Nb-4(3/4))O-3 center dot 0.47PbTiO(3)center dot 0.45PbZrO(3)] [P(LN)ZT] as raw materials by Compressing technique. The influences of carbon black content on the piezoelectric and dielectric properties, electric conductivity and impedance were investigated. The results indicate that the piezoelectric strain constant d(33) and piezoelectric voltage constant g(33) of the composites increase gradually with a suitable carbon black addition. When the carbon black content is 0.3 wt%, both of the piezoelectric strain constant d(33) and piezoelectric voltage constant 933 of the composite exist the maximum value, which are 17.45 pC N-1 and 36.3 mV m N-1, respectively. As the carbon black content increases, the dielectric constant epsilon(r), dielectric loss tan delta and electric conductivity sigma of the composites all increase, while the impedance decreases. In the frequency range tested, the more the carbon black content, the higher the epsilon(r) value. The planar electromechanical coupling coefficient K-p, the thickness electromechanical coupling coefficient K-p, and the mechanical quality factor Q(m) are almost unaffected by the carbon black content. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.