以650 ℃轻烧后的高铝矾土为原料,利用水热法合成了以α-Al2O3为主晶相的纳米粉.研究了晶种、矿化剂、水热温度和水热时间对产物中α-Al2O3含鼍、晶粒度大小的影响,采用XRD、SEM分析了纳米粉体的物相与形貌.结果表明,加入3%质量分数的晶种在380℃水热处理2 h后,合成出晶粒度为28 nm、以α-Al2O3为主晶相的α-Al2O3纳米粉,其形貌呈圆球状,二次粒度为190 nm.
参考文献
| [1] | 曾智江,杨秋红,徐军.Cr3+：Al2O3透明多晶陶瓷光谱特性分析[J].物理学报,2005(11):5445-5449. |
| [2] | 许珂敬,杨新春,田贵山,王峰.采用引入晶种的水热合成法制备α-Al2O3纳米粉[J].硅酸盐学报,2001(06):576-579. |
| [3] | 董国义,葛世艳,韦志仁,窦军红,张华伟,王立明,李志强.水热法α-Al2O3自发结晶和形态控制[J].人工晶体学报,2004(03):380-383. |
| [4] | Cho SB.;Adair JH.;Venigalla S. .MORPHOLOGICAL FORMS OF ALPHA-ALUMINA PARTICLES SYNTHESIZED IN 1,4-BUTANEDIOL SOLUTION[J].Journal of the American Ceramic Society,1996(1):88-96. |
| [5] | Bell NS.;Adair JH.;Cho SB. .Size control of alpha-alumina particles synthesized in 1,4-butanediol solution by alpha-alumina and alpha-hematite seeding[J].Journal of the American Ceramic Society,1998(6):1411-1420. |
| [6] | Watanabe K .Effects of Trivalent Rare earth Ions upon the Morphology of Corundum Crystals[J].Journal of Crystal Growth,1983,65(03):568-570. |
| [7] | Zhong Xiangchong;Li Guangping .[J].Sintering Characters of Chinese Bauxites,1991,12:466-469. |
| [8] | 丛秋滋.多晶二维X射线衍射[M].北京:科学出版社,1997:178. |
| [9] | 施尔畏;陈之战;元如林.水热结晶学[M].北京:科学出版社,2004:40-42. |
| [10] | Kumagai M;Messing G L .Controlled Transformation and Sintering of a Boehmite Sol-gel by a-alumina Seeding[J].Journal of the American Ceramic Society,1985,68(09):500-505. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%