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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

CoxR1-xAl2O4(R=Zn,Mg)钴蓝颜料反射性能的研究

闫国杰; 程继健; 张金朝; 春胜利   

  1. 华东理工大学无机材料系, 上海 200237
  • 收稿日期:1999-08-09 修回日期:1999-10-21 出版日期:2000-08-20 网络出版日期:2000-08-20

Reflectivity Properties of CoxR1-xAl2O4(R=Zn, Mg) Cobalt Blue Pigment

YAN Guo-Jie; CHENG Ji-Jian; ZHANG Jin-Chao; CHUN Sheng-Li   

  1. Research Institute of Inorganic Materials; East China University of Science and Technology; Shanghai 200237; China
  • Received:1999-08-09 Revised:1999-10-21 Published:2000-08-20 Online:2000-08-20

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摘要： 采用化学共沉淀法成功地制备出适用于彩电显象管内荧光体着色的ＣｏｘＲ１－ｘＡｌ２Ｏ４（Ｒ＝Ｚｎ、 Ｍｇ， ｘ＝０．８～１．０）钴蓝颜料： ４５０ｎｍ波长处反射率最大提高１８．２％， ６００ｎｍ处反射率最大降低５％。通过对该颜料反射率的影响因素，如掺杂离子类型、掺杂浓度和Ｃｏ２＋离子浓度的探讨，结论如下：Ｚｎ２＋、Ｍｇ２＋改变钴蓝颜料反射性能的作用机理为晶格畸变引起Ｃｏ２＋３ｄ轨道电子能级分裂程度的变化；对于掺杂离子Ｚｎ２＋、Ｍｇ２＋，ｘ下限值分别约为０．８５和０．８．

关键词: CoxR1-xAl2O4颜料, 反射性能, 掺杂离子

Abstract: A kind of CoxR1-xAl2O4(R=Zn、Mg，x=0.8\sim1.0)cobalt blue pigment suitable for luminophor of color televisions was synthesized successfully by
using the chemical coprecipitation method. Compared with CoAl2O4 reflectivity, the increase of reflectivity of CoxR1-xAl2O4 is 18.2% at 450nm
and --5% at 600nm respectively. Through discussing some affecting factors on this kind of pigment such as doping cation type, doping content and Co2+
content, a conclusion can be drawn that the mechanism of reflectivity properties alteration of complex cobalt blue pigments caused by doping cations Zn2+,
Mg2+ is Co2+3d electronic energy level cleavage due to lattice distortion. The lower limit value of x of Zn2+, Mg2+ is 0.85 and 0.8 respectively.

Key words: CoxR1-xAl2O4 pigment, reflectivity properties, doping cation

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