含脲柠檬酸钇燃烧法制备纳米氧化钇粉  

YTTRIA NANOPOWDERS MANUFACTURED BY THE COMBUSTION SYNTHESIS PROCESS OF YTTRIUM CITRATE_UREA

作　　者：张显[1] 成来飞[1] 张立同[1] 徐永东[1] 陈照峰[1] 

机构地区：[1]西北工业大学凝固技术国家重点实验室,西安710072

出　　处：《硅酸盐学报》2003年第2期209-212,共4页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金资助项目 (10 0 760 13)

摘　　要：以柠檬酸钇为先驱体化合物 ,并将脲加到柠檬酸钇中 ,得到一种新的含脲柠檬酸钇先驱体。两种先驱体分别经 5 0 0 ,60 0 ,70 0℃和80 0℃煅烧 ,可得到纳米氧化钇粉。通过TEM和XRD研究 ,结果表明 :Y2 O3的大小是由煅烧温度决定 ,随着温度升高颗粒变大 ;此外 ,在相同温度下 。A new precursor was obtained by adding urea to the original yttrium citrate precursor. The Y2O3 nanopowder was synthesized by the combustion process of both precursors at 500°C, 600°C, 700°C and 800°C, respectively. The synthesis mechanism of the Y2O3 nanopowder is discussed based on the results of XRD and TEM. The particle size of the Y2O3 nanopowder synthesized by the combustion process of yttrium citrate with urea is finer than that of the Y2O3 nanopowder synthesized by the combustion process of yttrium citrate without urea at the same temperature.

关 键 词：含脲柠檬酸钇 陶瓷材料 尿素 燃烧法 制备 纳米氧化钇粉 

分 类 号：TQ174.758[化学工程—陶瓷工业]