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Growth of Sinle Crystal of The Pb(Zn1/3Nb2/3)O3-PbTiO3 System

Author: HeYu
Tutor: ZengLingZuo；ChenGang
School: Beijing University of Technology
Course: Condensed Matter Physics
Keywords: Relaxor ferroelectric single Morphotropic phase boundary Perovskite structure Metastable Bridgman PZN-PT
CLC: O782
Type: Master's thesis
Year: 2000
Downloads: 132
Quote: 0
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Abstract


This article focuses on the solid solution (1-x) Pb (Zn 1/3 Nb 2/3 ) O 3 -xPbTiO 3 < / sub > ( referred PZN-PT) relaxor ferroelectric single crystal growth and characterization of materials research work . According to the excellent performance of the system in the vicinity of the morphotropic phase boundary (MPB) , established the experimental ratio of x = 0.08 , add PbO as flux Bridgman single crystal prepared by its . The study showed that the lower flux ratio conducive to the crystallization effect of PZN-PT ; crucible slower rate of decline is conducive to maintaining the crystals in the excess PbO metastability growth ; melt to maintain the increase in temperature also has a positive on the crystallization role , but also contributed to reduce the direct factors of Zn / Nb ratio in the crystal . Has been prepared by a diameter of 7-8mm, a length of 10mm of the tripartite phase (x = 0.08) perovskite structure PZN-PT single crystal , the lattice constants a = 4.019A , α = 89.81 ° .

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CLC: > Mathematical sciences and chemical > Crystallography > Crystal growth > Crystal growth process
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