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磷酸盐直接共沉淀法制备K0.6Sr0.7Zr4P6O24纳米粉末
引用本文:杨 辉,郭兴忠,胡晓珍,葛曼珍.磷酸盐直接共沉淀法制备K0.6Sr0.7Zr4P6O24纳米粉末[J].无机化学学报,2004,20(4):474-478.
作者姓名:杨 辉  郭兴忠  胡晓珍  葛曼珍
作者单位:浙江大学纳米科学与技术中心,杭州,310027
基金项目:科技部“重大基础研究前期研究专项”资助项目(No.2003CCA01300)。
摘    要:Nanometer K0.6Sr0.7Zr4P6O24 (KSZP)powders were synthesized from KNO3, Sr(NO3)2, NH4H2PO4 and ZrOCl2·8H2O by direct co-precipitation method. The as-prepared precipitates and KSZP powders were characterized by thermal analysis, XRD, particle-size analyzer and SEM measurements. The results showed that the precipitates could be heat-treated at near 580 ℃ and 900 ℃, and the crystallization of the KSZP powder product depends on treatment temperature. It was non-crystalline after dried at 80 ℃, became incomplete crystalline KSZP after heat-treated at 900 ℃ and was single-phase KSZP after calcined at 1 380 ℃. The mean particle size and particle-size distribution of KSZP powder after heat-treated at 900 ℃ were smaller and narrower than those after dried at 80 ℃ and calcined at 1 380 ℃, and were 62 nm and 40~100 nm, respectively. The particle shape of the powder after heat-treatment was spheric, and the reuniting or agglomeration was found. Phosphate direct co-precipitation was more suitable than phosphate converse co-precipitation to synthesize nanometer single-phase KSZP powder and the sintered body with the nanometer powder possesses better integral sintering properties.

关 键 词:NZP陶瓷  磷酸盐直接共沉淀法  KSZP纳米粉末
修稿时间:2003年10月22

Preparation of Nanometer K0.6Sr0.7Zr4P6O24 Powder by Phosphate Direct Co-precipitation Method
YANG Hui,GUO Xing-Zhong,HU Xiao-Zhen and GE Man-Zhen.Preparation of Nanometer K0.6Sr0.7Zr4P6O24 Powder by Phosphate Direct Co-precipitation Method[J].Chinese Journal of Inorganic Chemistry,2004,20(4):474-478.
Authors:YANG Hui  GUO Xing-Zhong  HU Xiao-Zhen and GE Man-Zhen
Institution:Center of Nanometer Science and Technology of Zhejiang University, Hangzhou 310027,Center of Nanometer Science and Technology of Zhejiang University, Hangzhou 310027,Center of Nanometer Science and Technology of Zhejiang University, Hangzhou 310027 and Center of Nanometer Science and Technology of Zhejiang University, Hangzhou 310027
Abstract:
Keywords:NZP family ceramic  phosphate direct co-precipitation  nanometer KSZP powder
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