PMN-PT弛豫铁电固溶体的定向凝固组织与结晶习性

无机材料学报, 2004, 19(3): 541-545.

PMN-PT弛豫铁电固溶体的定向凝固组织与结晶习性

孙士文 , 潘晓明 , 李东林 , 李洪钧 , 朱丽慧 , 黄清伟 , 王评初

2. 2. 中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室, 上海 200050

1.1.School of Materials Science and Engineering

Shanghai University

Shanghai 200072

China

2. 2. State Key Laboratory of High Performance Ceramics and Superfine Microstructure

Shanghai Institute of Ceramics

Chinese Academy of Sciences

Shanghai 200050

China

关键词： PMN-PT , directional solidification ceramics , grain growth habit

Structure and Grain Growth Habit of Directional Solidification Ceramics of (1-x)Pb(Mg_1/3Nb_2/3)O₃ - xPbTiO₃ (x=0.30, 0.33, 0.38) Relaxor Ferroelectric Solid Solutions

SUN Shi-Wen , PAN Xiao-Ming , LI Dong-Lin , LI Hong-Jun , ZHU Li-Hui , HUANG Qing-Wei , WANG Ping-Chu

Keywords： PMN-PT , 定向陶瓷 , 结晶习性

研究了(1-x)Pb(Mg_1/3Nb_2/3)O₃-xPbTiO₃(简称PMN-PT或PMNT)系铁电固溶体在坩埚下降法定向凝固过程中的结晶与晶粒生长习性.结果表明,随着坩埚下降速度的加快和PbTiO₃含量的降低,陶瓷晶粒的择优生长方向由[111]逐渐向[110]转变。

This work describes the grain growth habit of the (1-x)Pb(Mg_1/3Nb_2/3)O₃-xPbTiO₃
(PMN-PT or PMNT) system ferroelectric solid solutions prepared by a directional solidification technique. The results show that the preferential
direction of the grain growth depends not only on the composition of the melts, but also on the crucible pulling-down speed. For a fixed PMN/PT
ratio, e.g. 62/38, higher speed of crucible pulling-down leads to a preferential grain growth orientation of [110], rather than the [111],
which is usually reported in single crystal growth studies, whereas lower crucible pulling-down speed tends to produce [111] grain-orientation
ceramics. When the crucible is pulled down at a certain rate, the preferential grain-growth orientation changes from [111] to [110] with reducing PbTiO₃
molar contents.

参考文献

[1]

Park Seung-Eek, Shrout T R. J. Appl. Phys., 1997, 82 (4): 1804--1811.
[2] Park Seung-Eek, Shrout T R. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1997, 44 (5): 1140--1147.
[3] Park Seung-Eek, Shrout T R. Mater. Res. Innov., 1997, 1 (1): 20--25.
[4] Service R F. SCIENCE, 1997, 275 (8): 1878.
[5] Oakley C G, Zipparo M J. 2000 IEEE Ultrasonics Symposium, Proceedings(IEEE, Piscataway, NJ, 2000), 1157--1167.
[6] Yamashita Y, Yokohama, Saitoh S. Piezoelectric material and ultrasonic probe. United States Patent, 1995, 5: 209, 410.
[7] Saitoh S, et al. Ultrasonic Probe. United States Patent, 1994, 5: 295, 487.
[8] Saitoh S, et al. Piezoelectric single crystal, ultrasonic probe, and array-type ultrasonic probe. United States Patent, 1995, 5: 402, 791.
[9] Wang Pingchu, et al. Proceedings of the 2000 12th IEEE International Symposium on Applications of Ferroelectrics, 2000, 2: 537--540.
[10] 王评初, 罗豪甦, 等(WANG Ping-Chu, et al). 无机材料学报(Journal of Inorganic Materials), 2001, 16 (1): 56--62.
[11] Kelly J, Leonard M, Tatigate C, et al. J. Am. Ceram. Soc., 1997, 80 (4): 957--964.
[12] 孙大志, 赵梅瑜, 罗豪#[6], 等(SUN Da-Zhi, et al). 无机材料学报(Journal of Inorganic Materials), 2000, 15 (5): 939--942.
[13] 陈辛尘, 王评初, 潘晓明, 等(CHEN Xin-Cher, et al). 无机材料学报(Journal of Inorganic Materials), 2000, 15 (1): 109--113.
[14] Takenaka T, Sakata K. Jpn. J. Appl. Phys., 1980, 19 (1): 31--39.
[15] Igarashi H, et al. Am. Ceram. Soc. Bull., 1978, 57 (9): 815--817.
[16] Sabolsky E M, et al. Proceedings of the 2000 21th IEEE International Symposium on Applications of Ferroelectrics, 2000, 1: 393--396.
[17] Li Donglin, et al. The Fourth Pacific Rim International Conference on Advanced Materials and Processing (PRICM4), 2001. 1735--1737.
[18] Lotgering F K. J. Inorg. Nucl. Chem., 1959, 9 (2): 113--123.
[19] 仲维卓, 华素坤著. 晶体生长形态学. 北京: 科学出版社, 1999.
[20] [美] 劳迪斯 R.A. 单晶生长, 北京: 科学出版社, 1979.

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