Influence of excess PbO additions on {111} single-crystal growth of Pb(Mg1/3Nb2/3)O3-35 mol% PbTiO3 by seeded polycrystal conversion

被引：17

作者：

Khan, A ^{[1
]}

Gorzkowski, EP ^{[1
]}

Scotch, AM ^{[1
]}

Leite, ER ^{[1
]}

Li, T ^{[1
]}

Chan, HM ^{[1
]}

Harmer, MP ^{[1
]}

机构：

[1] Lehigh Univ, Mat Res Ctr, Bethlehem, PA 18015 USA

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2003年 / 86卷 / 12期

关键词：

D O I：

10.1111/j.1151-2916.2003.tb03627.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The influence of additions of excess PbO to Pb(Mg1/3Nb2/3)O-3-35 mol% PbTiO3 (PMN-35PT) on {111} single-crystal growth by seeded polycrystal conversion was studied in the range of 0-5 vol% PbO. PbO volatilization and hence weight loss during annealing was controlled effectively by a double-crucible type of arrangement. PbO additions increased boundary mobility significantly in PMN-35PT, thus facilitating single-crystal growth by seeded polycrystal conversion (SPC). This is attributed to the formation of a boundary wetting PbO-based liquid phase. The growth process occurs very rapidly initially, after which it slows down. This is presumably due to both a decrease in the driving force for boundary migration because of an increase in matrix grain size, and a transition to lower mobility facets. It is also shown that for a given annealing time, the size of the grown crystal scales with the lateral dimensions of the seed crystal.

引用

页码：2176 / 2181

页数：6

共 25 条

[1]

Drofenik M, 1998, J AM CERAM SOC, V81, P2841, DOI 10.1111/j.1151-2916.1998.tb02704.x

[2]

GUHA JP, 1988, J AM CERAM SOC, V71, pC152, DOI 10.1111/j.1151-2916.1988.tb05038.x

[3]

Harada K, 1998, J AM CERAM SOC, V81, P2785, DOI 10.1111/j.1151-2916.1998.tb02697.x

[4]

HARMER MP, 2000, Patent No. 6048394