CRYSTAL-GROWTH AND X-RAY TOPOGRAPHY OF NDAL3(BO3)(4)

被引：18

作者：

JUNG, ST ^{[1
]}

KANG, JK ^{[1
]}

CHUNG, SJ ^{[1
]}

机构：

[1] SEOUL NATL UNIV,COLL ENGN,DEPT INORGAN MAT ENGN,SEOUL 151742,SOUTH KOREA

来源：

JOURNAL OF CRYSTAL GROWTH | 1995年 / 149卷 / 3-4期

关键词：

D O I：

10.1016/0022-0248(94)00972-4

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Single crystals of NdAl3(BO3)(4) were grown by top seeded solution growth from a BaB4O7 flux. The lattice constants and the space group of the grown crystal was confirmed to be a = 7.279(8) Angstrom, b = 9.370(6) Angstrom, c = 11.139(4) Angstrom, beta = 103.35(5)degrees and C2/c by X-ray diffraction. At a cooling rate of 2.4 degrees C/day and a crystal rotation speed of 30-40 rpm with seed orientation in the [201] or [100] directions, transparent and light violet colored crystals up to 10 x 15 x 20 mm(3) in size were obtained. Seeding in the [10 $$($) over bar 1] direction, rotation twins with the twin law of three-fold axis parallel to [10 $$($) over bar 1] were often formed. By X-ray topography, crystal defects such as growth striations, growth sector boundaries, dislocations, inclusions and cracks were observed.

引用

页码：207 / 214

页数：8

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