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Vol. 29 No. 3 (2017): Vol 29 Issue 3

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Structural and Microstructural Properties of Nanostructured PLZT (9/60/40) Electroceramics Synthesized by Mechanical Alloying Process

https://doi.org/10.14233/ajchem.2017.20297
Mohammad Hossein Golmakani
Department of Materials Engineering and Ceramic, Mashhad Branch, Islamic Azad University, Mashhad, Iran
Mohammad Reza Ghazanfari
Department of Materials Science and Engineering, Ferdowsi University of Mashhad, 9177948974, Mashhad, Iran
Younes Lagzian
Department of Materials Science and Engineering, Ferdowsi University of Mashhad, 9177948974, Mashhad, Iran
Seyyedeh Fatemeh Shams
Department of Materials Science and Engineering, Ferdowsi University of Mashhad, 9177948974, Mashhad, Iran
Rasool Amini
Department of Materials Science and Engineering, Shiraz University of Technology, Shiraz, Iran

Corresponding Author(s) : Mohammad Hossein Golmakani

Hos.glgh@gmail.com; hgol617@yahoo.com

Asian Journal of Chemistry, Vol. 29 No. 3 (2017): Vol 29 Issue 3

Abstract

In current work, the (Pb91La9)(Zr60Ti40)O3 electroceramic known as PLZT (9/60/40) was synthesized by mechanical alloying technique. The chemical composition assessments and structural properties of milled samples at different milling time were studied by X-ray fluorescence (XRF) and X-ray diffraction (XRD) analyses. Moreover, the structural evaluations were carried out by scanning electron microscope and transmission electron microscope. The X-ray fluorescence results showed that the chemical compositions of milled powder had negligible deviation from stoichiometric ratio. The mechanism of PLZT synthesis by mechanical alloying had three steps include (a) the crystallite size decreasing of initial materials to nanometer scales, (b) amorphous phase formation and (c) the recrystallization of perovskite structure from amorphous phase. Furthermore, by increasing of milling time the particles size was gradually decreased to about 20 nm in 40 h milled sample and their morphology was transformed from irregular shape to equiaxed quasi-spherical mode.

Keywords

Ceramics Electron microscopy Microstructure Piezoelectricity
Golmakani, M. H., Ghazanfari, M. R., Lagzian, Y., Shams, S. F., & Amini, R. (2016). Structural and Microstructural Properties of Nanostructured PLZT (9/60/40) Electroceramics Synthesized by Mechanical Alloying Process. Asian Journal of Chemistry, 29(3), 661–664. https://doi.org/10.14233/ajchem.2017.20297
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