Dendrite growth observed in Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals prepared by the Bridgman process

被引：7

作者：

Xu, GS ^{[1
]}

Luo, HS ^{[1
]}

Xu, HQ ^{[1
]}

Qi, ZY ^{[1
]}

Yin, ZW ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Lab Funct Inorgan Mat, Shanghai 201800, Peoples R China

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2001年 / 40卷 / 4B期

关键词：

lead magnesium niobate-lead titanate; piezoelectric material; single crystal; Bridgman process; microstructure; dendritic growth; constitutional supercooling;

D O I：

10.1143/JJAP.40.L396

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Several patterns of dendritic crystals of Pb(Mg1/3Nb2/3)O-3-PbTiO3 grown by the Bridgman process have been identified. This phenomenon arose from constitutional supercooling of the pseudo binary solid solution system. Therefore, macroscopic segregation and constitutional supercooling should be simultaneously restrained during crystal growth in order to obtain uniform crystals in composition and structure. A high growth temperature, larger temperature gradient and slower growth rate should be adopted to maintain stable a growth interface.

引用

页码：L396 / L397

页数：2

共 7 条

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