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ANT_DREAM金虫 (小有名气)
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[交流]
【讨论】PZN-PZT压电陶瓷d33
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| PZN-PZT压电陶瓷d33最高可以做到多少了？ 就是纯的pzn-pzt，使用传统烧结工艺国内能做到多少？ 国外的就见过一个泰国学者使用做到690pc/N了，但是没有见到第二个能做到600的，当然是用热压和掺杂的可以做的比较高，各位谁知道哪里做的最好？ |
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ANT_DREAM
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Piezoelectric properties of (1 x)Pb(Zr1/2Ti1/2)O3–xPb(Zn1/3Nb2/3)O3 ceramics prepared by the columbite–(wolframite) precursor method N. Vittayakorn a,*, C. Puchmark b, G. Rujijanagul c, X. Tan d, D.P. Cann d a Department of Chemistry, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabung, Bangkok 10520, Thailand b Department of Physics, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand c Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand d Materials Science and Engineering Department, Iowa State University, Ames, IA 50011, USA Available online 22 December 2005 Abstract Solid solutions of the perovskite structure, (1 x)Pb(Zr1/2Ti1/2)O3–xPb(Zn1/3Nb2/3)O3 with x = 0.1–0.5, were synthesized via the columbite–( wolframite) precursor method. The phase development of calcined powder precursors was analyzed by X-ray diffraction. Phasepure perovskite of PZN–PZT ceramics was obtained over a wide compositional range. The microstructure and piezoelectric properties were characterrized by means of scanning electron microscopy (SEM), d33 measurements and impedance analysis. It has been found that ultra-high piezoelectric properties were observed in compositions close to a morphotropic phase boundary (MPB). The maximum value of d33 (690 pC/N) and the highest kp (0.7) were recorded for the composition x = 0.3 located at the boundary between tetragonal and rhombohedral ferroelectric phases. Furthermore, large values of d33 (600 pC/N) and kp (0.67) were observed at a compositions of x = 0.5, which is the boundary between two ferroelectric rhombohedral phases. 2005 Elsevier B.V. All rights reserved. PACS: 77.84.Dy; 77.65.j; 77.80.Bh Keywords: PZT; Piezoelectricity; Ferroelectricity; Phase transitions 4. Conclusions Columbite (ZnNb2O6) and wolframite (ZrTiO4) precursors were utilized to prepare highly pure PZN–PZT solid solutions. Superior piezoelectric properties were obtained in the compositions located close to the two MPBs found in this system. The maximum value of d33 (690 pC/N) and the highest kp (0.7) were recorded for the composition x = 0.3. Furthermore, high values of d33 (600 pC/N) and kp (0.67) were also observed at composition of x = 0.5. |
7楼2009-10-07 11:27:11
ANT_DREAM
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2楼2009-10-06 14:17:55
fangbj
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3楼2009-10-06 15:00:35
ANT_DREAM
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4楼2009-10-06 17:16:36
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