استحصال انرژی الکتریکی از فروالکتریک‌ها: ساخت پیزوسرامیک PZT 95/5-2Nb متخلخل با استفاده از گرانول PMMA

نوع مقاله : مقاله پژوهشی

نویسنده

پژوهشگاه مواد و انرژی

چکیده

در ساخت سرامیک پیزوالکتریک متخلخل از Pb0.99(Zr0.95Ti0.05)0.98Nb0.02O3 معمولا گرانول پلی متیل متااکریلات (PMMA) به منظور ایجاد تخلخل استفاده می‌شود. ایجاد تخلخل باعث تغییراتی در خواص الکترومکانیکی شده و باعث کاهش و یا افزایش بعضی پارامترهای پیزوالکتریکی می‌شود. افزودن PMMA از 6/0% تا 2/2% باعث کاهش ثابت پیزوالکتریک از pC/N 1/78 تا pC/N 68 می‌شود. همچنین ثابت دی‌الکتریک را برای قطعات پلاریزه شده از 400 به 307 می‌رساند. با افزایش در صد تخلخل، ثابت ولتاژ پیزوالکتریک ابتدا از V.m/N 3-10×3/22 به مقدار V.m/N 3-10×9/26 افزایش یافته و سپس کاهش می‌یابد. به نمونه‌ها شوک مکانیکی به منظور استحصال ولتاژ اعمال شد. بیشترین ولتاژ بدست آمده KV 5/57 برای نمونه‌های حاوی 1% PMMA مشاهده شد. بررسی ساختاری از نمونه‌ها توسط TEM وجود کریستالی‌های یکدست و پهن را نشان می‌داد.

کلیدواژه‌ها


عنوان مقاله [English]

Electric energy generation from ferroelectrics: Fabrication porous piezoceramic PZT95/5-2Nb by used PMMA granule

چکیده [English]

In the manufacture of porous piezoelectric ceramics (Pb0.99 (Zr0.95Ti0.05)0.98Nb0.02O3) is usually used polymethyl methacrylate (PMMA) granules for the production of porosity. Creating porosity causes changes in electromechanical properties and reduces or increases some piezoelectric parameters. Adding PMMA from 0.6% to 2.2% reduces piezoelectric constant from 78.1 pC / N to 68 pC / N. It also provides a dielectric constant for polar components from 400 to 307. By increasing the porosity, the piezoelectric voltage constant increased from 9.96 ×10-3 V. m / N to 22.3×10-3, and then decreases. To the samples, a mechanical shock was applied to generation the voltage. The highest voltage achieved was 57.5 KV for samples containing 1% PMMA. The structural analysis of samples by TEM indicates the presence of coarse and regular crystals.

کلیدواژه‌ها [English]

  • Piezoelectric
  • Solid State Reaction
  • PMMA
  • Piezoelectric Constant
[1]   J. Wang, Shiyuan Yang, J. Wang, H. He, Y. Xiong, and F. Chen, “Phase, crystal struture and sintering behavior of shock-synthesized Pb(Zr0.95Ti0.05)O3 powders,” Solid State Sciences, vol. 12, pp. 2054-2058. 2010.##
[2]   B. A. Tuttle, P. Yang, J. H. Gieske, J. A. Voigt, T. W. Scofield, D. H. Zeuch, and W. R. Olson, “Pressure-induced phase transformation of controlled-porosity Pb(Zr0.95Ti0.05)O3 ceramics,” American Ceramic Society, , vol. 84, pp. 1260–1264. 2001.##
[3]   T. Zeng, X. L. Dong, C. L. Mao, Z. Y. Zhou, and H. Yang, “Effects of pore shape  and porosity on the properties of porous PZT95/5 ceramics,”  European Ceramic Society, vol. 27, pp. 2025–2029, 2007.##
[4]   D. A. Hall, J. D. S. Evans, S. J. Covey-Crump, R. F. Holloway, E. C. Oliver, T. Mori, and P. J. Withers, “Effects of superimposed electric field and porosity on the hydrostatic pressure-induced rhombohedral to orthorhombic martensitic phase transformation in PZT95/5 ceramics,” Acta Materialia, vol. 58, pp. 6584–6591, 2010.##
[5]    J. F. Li, T. Kenta, O. Masaru, P. Wei, and W. Ryuzo, “Fabrication and evaluation of porous piezoelectric Ceramics and porosity-graded piezoelectric actuators,” American Ceramic Society, vol. 86, pp. 1094–1098, 2003.##
[6]   S. I. Shkuratov, J. Barid, and E. F. Talantsev, “Extension of thickness-dependent dielectric breakdown law on adiabatically compressed ferroelectric materials,” Applied physics letters, vol. 102, 2013.##
[7]   S. I. Shkuratov, J. Barid, E. F. Talantsev, W. S. Hackenberger, A. H. Stults, and L. L. Altgilbers, “Miniature 100-KV explosively driven prime power sources based on transverse shock-wave depolarization of Pb(Zr0.95Ti0.05)O3 ferroelectric ceramics,” 978-1-4577-0631-8, 2011.##
[8]   S. I. Shkuratov, J. Barid, and E. F. Talantsev, “Utilizing Pb(Zr0.95Ti0.05)O3 ferroelectric ceramics to scale down autonomous explosive-driven shock-wave ferroelectric generators,” Scientific instruments, vol. 83, 2012.##
[9]   S. I. Shkuratov, J. Barid, and E. F. Talantsev, “Miniature  120-KV autonomous generator based on transverse shock-wave depolarization of Pb(Zr0.95Ti0.05)O3 ferroelectrics,” Scientific instruments, 086107, vol. 82, 2011.##
[10] R. Tabarzadi, A. Aghaei, M. M. Mohebi, and A. Maghsudipor, “Piezoceramic Powder Synthesis PZT95 / 5-2Nb by One-Step and Two-Step Methods,” 11nd Ceramic Society of Iran, 2017.##
[11] M. Lallart, “Synthesis of PZT Ceramics by Sol-Gel Method and Mixed Oxides with Mechanical Activation Using Different Oxides as a Source of Pb,” Ferroelectrics – Material Aspects book, Chapter 16, ISBN 978-953-307-332-3 Published, August 24, 2011.##
[12] L. L. Altgilbers, J. Baird, B. L. Freeman, Ch. S. Lynch, and S. L. shkuratov, “Explosive pulsed power,” Imperical college press, vol. 1, p. 9, 2011.##
[13] S. I. Shkuratov1, E. F. Talantsev, and J. Baird, “Application of piezoelectric ceramics in pulsed power technology and engineering,” Piezoelectric Ceramics, vol. 14, p. 270, 2012.##
[14] E. F. Alberta, B. Michaud, and W. S. Hackenberger, “Development of ferroelectric materials for explosively driven pulsed-power systems,” TRS Technologies, book, ISBN: 978-1-4244-4064-1, DOI: 10.1109/PPC., 5386193, 2009.##
[15] R. N. Das and P. Pramanik, “In Situ Synthesis of Nanosized PZT Powders in the Precursor Material and the Influence of Particle Size on the Dielectric Property,” Nanostructured Materials, vol. 10, Issue 8, pp. 1371-1377, 1998.##