Low-temperature fabrication and crystallization behavior of Pb(Mg1/3Nb2/3O3) crystallites by a hydrothermal process

Xiuli Chen; Huiqing Fan; Yunfei Fu; Laijun Liu; Jin Chen

doi:10.1016/j.jallcom.2008.01.119

Low-temperature fabrication and crystallization behavior of Pb(Mg_1/3Nb_2/3O₃) crystallites by a hydrothermal process

Xiuli Chen, Huiqing Fan, Yunfei Fu, Laijun Liu, Jin Chen

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Perovskite Pb(Mg_1/3Nb_2/3)O₃ (PMN) crystallites were synthesized via a single-step process, namely a hydrothermal process, at low temperature, by using PbO, MgO and Nb₂O₅ as precursors. PMN were obtained when the precursors were heated to 150 °C for 24 h with KOH concentration of 11 M. Effects of the initial KOH concentration, temperature and reaction time on the phase evolution and morphologies of PMN crystallites were systematically investigated. The optimum KOH concentration was found to be 11 M, which led to the stabilization of the perovskite powder against the pyrochlore phase, and to the growth of high-quality PMN crystallites suitable for subsequent characterization. According to morphological evolution during the reaction, a possible growth mechanism was proposed based on the dissolution-crystallization process.

Original language	English
Pages (from-to)	322-326
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	469
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2008.01.119
State	Published - 5 Feb 2009

Keywords

Chemical synthesis
Ferroelectrics
X-ray diffraction

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10.1016/j.jallcom.2008.01.119

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title = "Low-temperature fabrication and crystallization behavior of Pb(Mg1/3Nb2/3O3) crystallites by a hydrothermal process",

abstract = "Perovskite Pb(Mg1/3Nb2/3)O3 (PMN) crystallites were synthesized via a single-step process, namely a hydrothermal process, at low temperature, by using PbO, MgO and Nb2O5 as precursors. PMN were obtained when the precursors were heated to 150 °C for 24 h with KOH concentration of 11 M. Effects of the initial KOH concentration, temperature and reaction time on the phase evolution and morphologies of PMN crystallites were systematically investigated. The optimum KOH concentration was found to be 11 M, which led to the stabilization of the perovskite powder against the pyrochlore phase, and to the growth of high-quality PMN crystallites suitable for subsequent characterization. According to morphological evolution during the reaction, a possible growth mechanism was proposed based on the dissolution-crystallization process.",

keywords = "Chemical synthesis, Ferroelectrics, X-ray diffraction",

author = "Xiuli Chen and Huiqing Fan and Yunfei Fu and Laijun Liu and Jin Chen",

year = "2009",

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doi = "10.1016/j.jallcom.2008.01.119",

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TY - JOUR

T1 - Low-temperature fabrication and crystallization behavior of Pb(Mg1/3Nb2/3O3) crystallites by a hydrothermal process

AU - Chen, Xiuli

AU - Fan, Huiqing

AU - Fu, Yunfei

AU - Liu, Laijun

AU - Chen, Jin

PY - 2009/2/5

Y1 - 2009/2/5

N2 - Perovskite Pb(Mg1/3Nb2/3)O3 (PMN) crystallites were synthesized via a single-step process, namely a hydrothermal process, at low temperature, by using PbO, MgO and Nb2O5 as precursors. PMN were obtained when the precursors were heated to 150 °C for 24 h with KOH concentration of 11 M. Effects of the initial KOH concentration, temperature and reaction time on the phase evolution and morphologies of PMN crystallites were systematically investigated. The optimum KOH concentration was found to be 11 M, which led to the stabilization of the perovskite powder against the pyrochlore phase, and to the growth of high-quality PMN crystallites suitable for subsequent characterization. According to morphological evolution during the reaction, a possible growth mechanism was proposed based on the dissolution-crystallization process.

AB - Perovskite Pb(Mg1/3Nb2/3)O3 (PMN) crystallites were synthesized via a single-step process, namely a hydrothermal process, at low temperature, by using PbO, MgO and Nb2O5 as precursors. PMN were obtained when the precursors were heated to 150 °C for 24 h with KOH concentration of 11 M. Effects of the initial KOH concentration, temperature and reaction time on the phase evolution and morphologies of PMN crystallites were systematically investigated. The optimum KOH concentration was found to be 11 M, which led to the stabilization of the perovskite powder against the pyrochlore phase, and to the growth of high-quality PMN crystallites suitable for subsequent characterization. According to morphological evolution during the reaction, a possible growth mechanism was proposed based on the dissolution-crystallization process.

KW - Chemical synthesis

KW - Ferroelectrics

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=58249135705&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2008.01.119

DO - 10.1016/j.jallcom.2008.01.119

M3 - 文章

AN - SCOPUS:58249135705

SN - 0925-8388

VL - 469

SP - 322

EP - 326

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Low-temperature fabrication and crystallization behavior of Pb(Mg_1/3Nb_2/3O₃) crystallites by a hydrothermal process

Abstract

Keywords

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