本文采用一种新的水热粉体制备方法-水热盐溶液卸压法，制得了α-Al2O3粉体、AlO（OH）纤维以及ZrO2和AlO（OH）复合氧化物粉体．发现以1mol／LAl（NO3）3溶液作为前驱物，0．2mol／LFe（NO3）3为添加剂，在300℃可制得α－Al2O3粉体．以1mol／LAl（NO3）3溶液为前驱物；1mol／LKBr为添加剂，在350℃可制得长径比为13：1的AlO（OH）纤维．当采用AlCl3、ZrOCl2溶液为前驱物，Zr/Al的比例为1：3时，在240℃可制得纤维状AlO(OH)颗粒和球形ZrO2颗粒的复合氧化物粉体．
α-Al2O3 powder, AlO(OH) fibers and complex oxides made up of ZrO2 and AlO(OH) were prepared by a new hydrothermal method-hydrothermal salt
solution pressure-relief. α-Al2O3 powders were prepared at 300℃ by using 1mol/L Al(NO3)3 solution as precursor, 0.2mol/L Fe(NO3)3 as additive; AlO(OH) fiber with the ratio of length with
diameter 13:1 were prepared at 350℃ by using 1mol/LAl(NO3)3 as precursor, 1 mol/L KBr as additive; complex oxides made up of ZrO2 and AlO(OH) were prepared
at 240℃ by using 0.75mol/L AlCl3 and 0.25mol/L ZrOCl2 mixed solutions as precursor.
参考文献
| [1] | Albrecht Rabenau. J. Mater. Educ., 1988, 10: 543--591 2 劳迪斯 R. A. 著，刘光照译，单晶生长，科学出版社，北京， 1979. 340 3 Sterte J P, Otterstedt J E, et al. Mat. Res. Bull., 1989, 21: 1159--1164 4 Brusasco R, Gnassi J, et al. et al. Mat. Res. Bull., 1984, 19 (11): 1489--1496 5 李汶军，施尔畏，田明原等. 中国科学(E辑)， 1998， 28 (3): 212--219 |
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