CONTROL OF MORPHOLOGY OF ZN2SIO4 BY HYDROTHERMAL PREPARATION

被引:79
作者
LI, QH [1 ]
KOMARNENI, S [1 ]
ROY, R [1 ]
机构
[1] PENN STATE UNIV,DEPT AGRON,UNIVERSITY PK,PA 16802
关键词
D O I
10.1007/BF01184587
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Pure and Mn-doped willemite, Zn2SiO4 of different morphologies acid particle sizes were prepared with and without NH4OH under different hydrothermal conditions. Pure willemite was synthesized at a temperature as low as 165 degrees C using autogeneous pressure. The nature of the an ion, silica source and the NH4OH :Zn2+ ratio played an important role in the size and morphology of the willemite phase. The presence of SO42- anions resulted in mainly equiaxed grains. Such powders are expected to be good for consolidation and in the processing of phosphors.
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页码:2358 / 2363
页数:6
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