菜单
  
    摘要具有ABO3钙钛矿型结构的锆钛酸铅PZT压电陶瓷,因其温度稳定性好、电性能优异,容易制造而且价格低廉等优点而被广泛应用于电子元器件中。锆钛摩尔比为95/5的锆钛酸铅压电陶瓷体系[化学式为Pb(Zr0.95Ti0.05)03],简称PZT95/5,由于含锆较高,PzT95/5陶瓷一般要求高温(1300℃)烧结,高温下体系中的铅挥发严重,造成化学计量比不准确,最终制品性能恶化,也对环境造成了危害,通过添加Pb2O5来提高性能。
    使用固相法合成PZT95/5粉体,利用X射线衍射,CF分析,d33测量仪来表征PZT结构特点及性能。谈论掺杂对材料的介电,压电性能的影响。通过对掺杂2%摩尔比Pb2O5的样品的研究,研究结果表明:掺杂的PZT陶瓷使介电性能下降,机械品质因数降低,平面机电耦合系数Kp提高,压电性能增强。5583
    关键词  PZT95/5陶瓷  掺杂  压电性能  介电性能
    毕业设计说明书(论文)外文摘要
    Title    the synthesis of high content of Zr PZT piezoelectric ceramic and its properties research                                                                       
    Abstract
    Lead zirconate titanate(PZT), which a kind of piezoceramics with ABO3-perovskite structure, have been extensively in electronic components due to its stable temperature function, the excellent electromechanical properties, the available production and the low cost. The Zr:Ti ratio is around 95:5 of PZT[Pb(Zr0.95Ti0.05)O3],PZT95/5 Because of high-content the Zr element, PZT95/5 need a high sintering temperature(around 1300℃) when the Pb in PZT will be volatilization. The element composition of PZT is not as precise as original form. The properties of PZT ceramic produce will be worsen. It’s also causing harm for the environment. The samples are gained by adding Pb2O5 in order to enhance the properties.
    Using the method of the solid-phase to synthesize the powder of PZT95/5, by means of the X-ray diffraction(XRD), CF analysis, d33 analysis to characterized the powder’s structure and property .The effects of the addition on the dielectric and piezoelectric properties of the system were discussed. Based on the study of these  samples that are obtained with Pb2O5=2%(mole ratio) , we can say : the samples with addition can improve the piezoelectric properties and the value of Kp ,they also low the dielectric properties down and reduce the value of Qm.
     Keywords  PZT95/5 ceramics;addition; piezoelectric properties;dielectric properties;
     目 录

    1  引言    1
    1.1  压电陶瓷的介绍    1
    1.2  压电陶瓷的性能表征    2
    1.2.1  介电常数    2
    1.2.2  介质损耗    3
    1.2.3  机械品质因数Qm    3
    1.2.4  压电常数    3
    1.2.5  机电耦合系数:    3
    1.2.6  频率常数    3
    1.3  PZT陶瓷的发展历史及趋势    4
    1.3.1  PZT陶瓷的发展历史    4
    1.3.2  PZT陶瓷的发展趋势    5
    1.4  PZT陶瓷制备的基本工艺方法    6
    1.4.1  微波辐射法    6
    1.4.2  机械化学法    7
    1.4.3  反应烧结法    7
    1.4.4  水热法    7
    1.4.4  沉淀法    7
  1. 上一篇:铝合金螺旋管焊接自动成型装置的研制
  2. 下一篇:超细晶钽的再结晶行为与动态力学性能
  1. BNT-BT压电陶瓷的制备和电学性能表征

  2. 二聚物P(VDF-TrFE)薄膜可穿戴...

  3. 中压电缆用紫铜带产品的性能及其工艺设计

  4. BNT-BKT无铅压电陶瓷的制备与表征

  5. 钛酸铋钠基无铅压电陶瓷的制备及改性研究

  6. 压电厚膜微型芯片的研究+文献综述

  7. 压电陶瓷叠堆的研究及应用

  8. 大众媒体对公共政策制定的影响

  9. 酸性水汽提装置总汽提塔设计+CAD图纸

  10. 十二层带中心支撑钢结构...

  11. 当代大学生慈善意识研究+文献综述

  12. 河岸冲刷和泥沙淤积的监测国内外研究现状

  13. java+mysql车辆管理系统的设计+源代码

  14. 乳业同业并购式全产业链...

  15. 电站锅炉暖风器设计任务书

  16. 中考体育项目与体育教学合理结合的研究

  17. 杂拟谷盗体内共生菌沃尔...

  

About

751论文网手机版...

主页:http://www.751com.cn

关闭返回