[1]卢红霞,毛爱霞,郝好山,等.利用纳米铝和沉淀法制备纳米α-Al2O3粉体[J].郑州大学学报(工学版),2005,26(01):83-85.[doi:10.3969/j.issn.1671-6833.2005.01.021]
　Lu Hongxia,Mao Aixia,Hao Haoshan,et al.Nano α-Al2O3 powder was prepared by nano-aluminum and precipitation[J].Journal of Zhengzhou University (Engineering Science),2005,26(01):83-85.[doi:10.3969/j.issn.1671-6833.2005.01.021]
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利用纳米铝和沉淀法制备纳米α-Al2O3粉体()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
26
期数:
2005年01期
页码:
83-85
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Nano α-Al2O3 powder was prepared by nano-aluminum and precipitation
作者:
卢红霞; 毛爱霞; 郝好山; 等.
郑州大学材料物理教育部重点实验室,河南,郑州,450052, 郑州大学材料物理教育部重点实验室,河南,郑州,450052, 郑州大学材料物理教育部重点实验室,河南,郑州,450052, 郑州大学材料物理教育部重点实验室,河南,郑州,450052, 郑州大学材料物理教育部重点实验室,河南,郑州,450052
Author(s):
Lu Hongxia; Mao Aixia; Hao Haoshan; etc
关键词:
沉淀法;  纳米α-Al2O3;  纳米铝粉;  相变
Keywords:
DOI:
10.3969/j.issn.1671-6833.2005.01.021
文献标志码:
A
摘要:
以Al(NO3)3·9H2O、氨水和纳米铝粉为原料,采用液相沉淀法制备出Al(OH)3溶胶,经过真空抽滤和高温煅烧获得了纳米α-Al2O3粉体.研究了反应体系pH值、纳米铝粉添加和煅烧温度对Al(OH)3溶胶质量以及Al2O3晶型转化温度的影响.结果表明,反应体系pH值为9时可以获得团聚少、分散性好的Al(OH)3溶胶,添加摩尔分数为3%的纳米铝粉作为籽晶可以使α-Al2O3的转变温度降至1000℃左右.实验获得的纳米α-Al2O3粉体粒度分布均匀,无明显团聚,近似球形,平均粒径约为20 nm.
Abstract:
Al(OH)3 sol was prepared by liquid phase precipitation using Al(NO3)9·2H3O, ammonia and nano aluminum powder as raw materials, and nano α-Al2O3 powder was obtained by vacuum filtration and high temperature calcination. The effects of pH value, nano-aluminum powder addition and calcination temperature on the quality of Al(OH)3 sol and Al2O3 crystal form conversion temperature were studied. The results show that Al(OH)9 sols with less agglomeration and good dispersion can be obtained when the pH value of the reaction system is 3, and the transition temperature of α-Al3O2 can be reduced to about 3°C by adding nano-aluminum powder with a mole fraction as seed crystal. The nano α-Al1000O2 powder obtained by the experiment has a uniform particle size distribution, no obvious agglomeration, approximately spherical, and an average particle size of about 3 nm.

更新日期/Last Update: 1900-01-01