硅酸盐学报

用纳米粉制备Nd:Y_(1.84)La_(0.16)O_3透明陶瓷

作者：杨秋红丁君豆传国胡小曼徐军林丽娜唐在峰

单位：上海大学电子信息材料系上海大学电子信息材料系上海大学电子信息材料系上海大学电子信息材料系中国科学院上海光学精密机械研究所上海大学电子信息材料系上海大学电子信息材料系上海200072 上海200072 上海200072 上海200072 上海201800 上海200072 上海200072

关键词：氧化镧钇透明陶瓷纳米粉体视学透过率

分类号：TB383.1;TQ174.758.23

出版年,卷(期):页码：2007,35(6):755-759

DOI：

摘要：

用碳酸盐共沉淀法制备一种新的掺钕氧化镧钇(Nd:Y1.84La0.16O3)纳米粉体,得到颗粒细小、均匀、分散性好、粒径为50～60nm的Nd:Y1.84La0.16O3纳米粉体。分别采用Nd:Y1.84La0.16O3纳米粉料和商业粉料,用传统陶瓷无压烧结工艺制备Nd:Y1.84La0.16O3透明陶瓷。Nd:Y1.84La0.16O3纳米粉制备的陶瓷样品的组分均匀、几乎不存在第二相,具有较高的透过率。商业粉制备的陶瓷样品因混料不均匀而在晶界处存在部分第二相,降低了陶瓷的透过率。此外,还运用体视学法预测了2种陶瓷透过率的相对高低,分析了三维结构参数对陶瓷光学性能的影响。

A new kind of neodymium ion(Nd3 +)doped yttrium lanthanum oxide(Nd:Y 1.84 La0.16O3)nanopowders was fabricated by the carbonate co-precipitation method.These Nd:Y 1.84 La0.16O3 nanopowders were fine,homogeneous and well-dispersed with diame-ters between 50 nm and 60 nm.The Nd:Y 1.84 La0.16O3 nanopowders and commercial powders were used to fabricate Nd:Y1.84La0.16O3 transparent ceramics by the conventional ceramic sintering process without pressure.The composition of the ceramics fabricated by the Nd:Y 1.84 La0.16O3 nanopowders is uniform and there is almost no secondary phase within the ceramics,so the transmission of these ceramics is relatively high.In contrast,the transmission of the ceramics fabricated by commercial powders is low because there is some secondary phase in the grain boundaries caused by the nonhomogeneous mixing of the starting material.Moreover,the trans-mission of these two kinds of samples were predicted and the effects of three-dimensional structure parameters on the optical proper-ties were analyzed by the stereology method.

基金项目：

国家自然科学基金(60578041)资助项目

作者简介：

参考文献：

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