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Chin. Phys. B, 2008, Vol. 17(11): 4323-4327    DOI: 10.1088/1674-1056/17/11/060
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Enhanced mechanical behaviour of lead zirconate titanate piezoelectric composites incorporating zinc oxide nanowhiskers

Lin Hai-Bo (林海波), Cao Mao-Sheng (曹茂盛), Yuan Jie (袁 杰), Wang Da-Wei (王大伟), Zhao Quan-Liang (赵全亮), Wang Fu-Chi (王富耻)
School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
Abstract  This paper reports that the lead zirconate titanate (PZT) piezoelectric composites incorporating zinc oxide nanowhiskers (ZnO$_{\rm w})$ were prepared by the conventional solid state processing. The whisker-dispersed PZT composites (PZT/ZnO$_{\rm w})$ presented a significant enhancement in the mechanical properties such as Young's modulus, tensile strength and compressive strength. Especially, the compressive strength increased from 153 MPa for the PZT to 228 MPa for the PZT/ZnO$_{\rm w}$ composites. The reinforcement mechanism in strength of the composites was discussed. The mechanical quality factors of the PZT/ZnO$_{\rm w }$ composites increased considerably, while the piezoelectric constants and electromechanical coupling coefficient decreased slightly. The composites with good electrical and excellent mechanical properties are promising for further applications.
Keywords:  ZnO nanowhisker      composites      mechanical property      piezoelectrics  
Received:  29 April 2008      Revised:  22 May 2008      Accepted manuscript online: 
PACS:  81.40.Jj (Elasticity and anelasticity, stress-strain relations)  
  62.20.F- (Deformation and plasticity)  
  77.65.Bn (Piezoelectric and electrostrictive constants)  
  77.84.Lf (Composite materials)  
  81.16.-c (Methods of micro- and nanofabrication and processing)  
  81.40.Lm (Deformation, plasticity, and creep)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 50572010, 50742007 and 10672020), the National Defense Foundation of China (Grant No 401050301), and the Scientific Project of 863 of China (Grant No 2007AA03Z103).

Cite this article: 

Lin Hai-Bo (林海波), Cao Mao-Sheng (曹茂盛), Yuan Jie (袁 杰), Wang Da-Wei (王大伟), Zhao Quan-Liang (赵全亮), Wang Fu-Chi (王富耻) Enhanced mechanical behaviour of lead zirconate titanate piezoelectric composites incorporating zinc oxide nanowhiskers 2008 Chin. Phys. B 17 4323

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