Chemical synthesis of stabilized nanocrystalline zirconia powders

被引：0
|
作者：
Ray, JC
Park, DW
Ahn, WS [1 ]
机构：
[1] Inha Univ, Dept Chem Engn, Inchon 402751, South Korea
[2] Inha Univ, Inst Clean Technol, Inchon 402751, South Korea
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2006年 / 12卷 / 01期
关键词：
zirconia; nanocrystals; polymer precursor; stabilizing agents;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Nanocrystalline metastable phases of zirconia can be prepared through a novel chemical method using a polymer-based precursor solution with sucrose, poly(vinyl alcohol), and metal ions. Pyrolysis of the precursor over a hot plate at ca. 250 degrees C followed by calcination at temperatures up to 1200 degrees C resulted in zirconia nanocrystals in the form of a powder. Y3+, Cr3+, Th4+, Ta5+, and Nb5+ were used as stabilizing agents. Precursors and powders were characterized using TG-DTA, XRD, and TEM. The tetragonal and cubic phases were stabilized and the particle sizes of the powders were 20 similar to 60 nm having crystallite sizes 5 similar to 30 nm.
引用
收藏
页码：142 / 148
页数：7
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