NEODYMIUM INCORPORATION INTO YAL-BORATE CRYSTALS IN PREPARATION FROM SOLUTIONS IN MOLTEN POTASSIUM TRIMOLYBDATE

被引：20

作者：

LEONYUK, NI

PASHKOVA, AV

BELOV, NV

机构：

[1] Geological Department, Moscow State University, Moscow

来源：

KRISTALL UND TECHNIK-CRYSTAL RESEARCH AND TECHNOLOGY | 1979年 / 14卷 / 01期

关键词：

D O I：

10.1002/crat.19790140107

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The limits of neodymium substitution for yttrium in (Y, Nd)Al3(BO3)4 crystals in preparation from solutions in molten potassium trimolybdate have been studied. The maximum neodymium concentration in the crystals was 72 at.%, this corresponding to the ratio Nd:Y = 1 in the solution. When this ratio exceeds unity, only potassium‐neodymium molybdate is formed. The distribution coefficient for neodymium is greater than unity and decreases both with the increasing Nd/Y ratio in the melt and with decreasing growth rate of the crystals. The unit cell parameters change in the series YAl3(BO3)4NdAl3(BO3)4 in a non‐steady manner, this indicating that the structure is inclined to disordering. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：47 / 50

页数：4