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Issue:
Preparation of alumina nanometer particles by an ultrasonic precipitation method
Author(s):
WANG Yajuan
,
LI Chunxi
,
WANG Zigao
Pages:
8
-
10,13
Year:
2002
Issue:
4
Journal:
JOURNAL OF BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY(NATURAL SCIENCE EDITION)
Keyword:
氧化铝
;
纳米粒子
;
超声波
;
沉淀
;
Abstract:
以硝酸铝和碳酸铵为原料,利用超声波与沉淀相结合的方法,制得了平均粒径为(12±2)nm的氧化铝超细粉末.反应生成的沉淀经XRD、TG和DTA实验分析知其化学组成为NH4Al(OH)2CO3,该沉淀在475K开始分解为氧化铝,在1273K几乎完全转化为θ-Al2O3.
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