Growth and properties of (1-x)Pb(Zn1/3Nb2/3)O3-xPbTiO3 (x=0.07-0.11) ferroelectric single crystals by a top-seeded solution growth method
Growth and properties of (1-x)Pb(Zn1/3Nb2/3)O3-xPbTiO3 (x=0.07-0.11) ferroelectric single crystals by a top-seeded solution growth method
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DOI：
10.1016/j.ceramint.2015.07.078
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发表时间：
2015-12
影响因子：
5.2
通讯作者：
Tao Li;X. Long;M. Ye;Hairui Wang;Haitao Huang;Xierong Zeng;Shanming Ke
中科院分区：
文献类型：
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作者：
Tao Li;X. Long;M. Ye;Hairui Wang;Haitao Huang;Xierong Zeng;Shanming Ke
Pb（Mg 1/3 Nb 2/3）O3-PbTiO 3 [PMN-PT]和Pb（Zn 1/3 Nb 2/3）O3-PbTiO 3 [PZN-PT]这两种弛豫型复合钙钛矿固溶体单晶体具有优异的压电性能：表现出极高的压电系数、非常大的机电耦合因子和非常高的应变。这些材料的性能优于目前使用的Pb（Zr 1 −xTix）O3[PZT]陶瓷，使其成为下一代机电换能器的首选材料，适用于各种先进应用。本文采用顶部籽晶法生长了PZN-xPT（x=0.07-0.11）准同型相界单晶。铁电/介电和压电性能，晶体化学，域结构，和机电耦合性能进行了系统的表征。结果表明，顶部籽晶溶液法是制备高质量PZN-xPT铁电晶体的一种有效的替代技术，它能有效地控制PZN-xPT单晶的成核/生长，并通过提供富铅环境抑制不希望的缺铅烧绿石相。
The relaxor-based single crystals of complex perovskite solid solutions, Pb(Mg1/3Nb2/3)O3–PbTiO3[PMN–PT] and Pb(Zn1/3Nb2/3)O3–PbTiO3[PZN–PT], exhibit extraordinary piezoelectric performance: displaying extremely high piezoelectric coefficients, very large electromechanical coupling factors, and exceptionally high strain. These materials outperform the currently used Pb(Zr1−xTix)O3[PZT] ceramics, making them the materials of choice for the next generation of electromechanical transducers for a broad range of advanced applications. In this article, the PZN–xPT (x=0.07–0.11) single crystals near the morphotropic phase boundary were prepared using the top-seeded solution growth technique. Ferro-/dielectric and piezoelectric properties, crystal chemistry, domain structure, and electromechanical coupling properties were systematically characterized. It is showed that the top-seeded solution growth method is an effective alternative technique for preparing the high quality PZN–xPT ferroelectric crystals, which is effective in controlling nucleation/growth of the PZN–xPT single crystals and suppressing the undesired Pb deficient pyrochlore phase by providing a Pb rich environment.