Effect of excess PbO on the kinetics of the growth of PMNT polycrystals by templated grain growth method

Lui Zhao; Feng Gao; Weimin Wang; Changsheng Tian

doi:10.4028/0-87849-960-1.1137

Effect of excess PbO on the kinetics of the growth of PMNT polycrystals by templated grain growth method

Lui Zhao, Feng Gao, Weimin Wang, Changsheng Tian

School of Materials Sience and Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

The oriented 0.67Pb (Mg_1/3Nb_2/3)O₃-0. 33PbTiO₃ (PMNT) polycrystals were prepared by the conventional ceramic technique and the templated grain growth method adding excess PbO in the matrix. Kinetics of the development of oriented structure was investigated systemically. In the presence of PbO liquid phase, the oriented PMNT polycrystals mainly grow by the dissolution-precipitation mechanism. The diffusion is determined by the sintering temperature and the PbO-excess content in the matrix. The thickness of oriented PMNT polycrystals displays a t ^1/3 dependence, which is characteristic of diffusion-controlled growth. For the thicker oriented structure, 20% excess PbO in the PMNT matrix and 1150°C for 10h are the proper experimental conditions. Moreover, the addition of PbO in the matrix hardly affects the final composition of ceramic matrix.

Original language	English
Pages (from-to)	1137-1140
Number of pages	4
Journal	Materials Science Forum
Volume	475-479
Issue number	II
DOIs	https://doi.org/10.4028/0-87849-960-1.1137
State	Published - 2005
Event	PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing - Beijing, China Duration: 2 Nov 2004 → 5 Nov 2004

Keywords

Crystal
Kinetics
PMNT
Templated Grain Growth

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10.4028/0-87849-960-1.1137

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title = "Effect of excess PbO on the kinetics of the growth of PMNT polycrystals by templated grain growth method",

abstract = "The oriented 0.67Pb (Mg1/3Nb2/3)O3-0. 33PbTiO3 (PMNT) polycrystals were prepared by the conventional ceramic technique and the templated grain growth method adding excess PbO in the matrix. Kinetics of the development of oriented structure was investigated systemically. In the presence of PbO liquid phase, the oriented PMNT polycrystals mainly grow by the dissolution-precipitation mechanism. The diffusion is determined by the sintering temperature and the PbO-excess content in the matrix. The thickness of oriented PMNT polycrystals displays a t 1/3 dependence, which is characteristic of diffusion-controlled growth. For the thicker oriented structure, 20% excess PbO in the PMNT matrix and 1150°C for 10h are the proper experimental conditions. Moreover, the addition of PbO in the matrix hardly affects the final composition of ceramic matrix.",

keywords = "Crystal, Kinetics, PMNT, Templated Grain Growth",

author = "Lui Zhao and Feng Gao and Weimin Wang and Changsheng Tian",

year = "2005",

doi = "10.4028/0-87849-960-1.1137",

language = "英语",

volume = "475-479",

pages = "1137--1140",

journal = "Materials Science Forum",

issn = "0255-5476",

publisher = "Trans Tech Publications Ltd",

number = "II",

note = "PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing ; Conference date: 02-11-2004 Through 05-11-2004",

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TY - JOUR

T1 - Effect of excess PbO on the kinetics of the growth of PMNT polycrystals by templated grain growth method

AU - Zhao, Lui

AU - Gao, Feng

AU - Wang, Weimin

AU - Tian, Changsheng

PY - 2005

Y1 - 2005

N2 - The oriented 0.67Pb (Mg1/3Nb2/3)O3-0. 33PbTiO3 (PMNT) polycrystals were prepared by the conventional ceramic technique and the templated grain growth method adding excess PbO in the matrix. Kinetics of the development of oriented structure was investigated systemically. In the presence of PbO liquid phase, the oriented PMNT polycrystals mainly grow by the dissolution-precipitation mechanism. The diffusion is determined by the sintering temperature and the PbO-excess content in the matrix. The thickness of oriented PMNT polycrystals displays a t 1/3 dependence, which is characteristic of diffusion-controlled growth. For the thicker oriented structure, 20% excess PbO in the PMNT matrix and 1150°C for 10h are the proper experimental conditions. Moreover, the addition of PbO in the matrix hardly affects the final composition of ceramic matrix.

AB - The oriented 0.67Pb (Mg1/3Nb2/3)O3-0. 33PbTiO3 (PMNT) polycrystals were prepared by the conventional ceramic technique and the templated grain growth method adding excess PbO in the matrix. Kinetics of the development of oriented structure was investigated systemically. In the presence of PbO liquid phase, the oriented PMNT polycrystals mainly grow by the dissolution-precipitation mechanism. The diffusion is determined by the sintering temperature and the PbO-excess content in the matrix. The thickness of oriented PMNT polycrystals displays a t 1/3 dependence, which is characteristic of diffusion-controlled growth. For the thicker oriented structure, 20% excess PbO in the PMNT matrix and 1150°C for 10h are the proper experimental conditions. Moreover, the addition of PbO in the matrix hardly affects the final composition of ceramic matrix.

KW - Crystal

KW - Kinetics

KW - PMNT

KW - Templated Grain Growth

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U2 - 10.4028/0-87849-960-1.1137

DO - 10.4028/0-87849-960-1.1137

M3 - 会议文章

AN - SCOPUS:17044422982

SN - 0255-5476

VL - 475-479

SP - 1137

EP - 1140

JO - Materials Science Forum

JF - Materials Science Forum

IS - II

T2 - PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing

Y2 - 2 November 2004 through 5 November 2004

ER -

Effect of excess PbO on the kinetics of the growth of PMNT polycrystals by templated grain growth method

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Keywords

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