COMBUSTION SYNTHESIS AND PROPERTIES OF FINE PARTICLE FLUORESCENT ALUMINOUS OXIDES

被引：100

作者：

KINGSLEY, JJ ^{[1
]}

MANICKAM, N ^{[1
]}

PATIL, KC ^{[1
]}

机构：

[1] INDIAN INST SCI,DEPT INORGAN & PHYS CHEM,BANGALORE 560012,KARNATAKA,INDIA

来源：

BULLETIN OF MATERIALS SCIENCE | 1990年 / 13卷 / 03期

关键词：

aluminium nitrate; carbohydrazide; combustion synthesis; fluorescent aluminous oxides; lasers; metal nitrates; Ruby powder; TV phosphors; urea;

D O I：

10.1007/BF02744944

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fine particle fluorescent aluminous oxide materials like Cr3+-doped α-Al2O3 (ruby), MgAl2O4, LaAlO3, Y3Al5O12 and Ce3+-doped Y3Al5O12, LaMgAl11O19, CaAl12O19 and CeMgAl11O19 have been prepared by the combustion of the corresponding metal nitrate-aluminium nitrate-urea/carbohydrazide mixtures at 500°C in less than 5 min. Formation of these Cr3+- and Ce3+-doped aluminous oxides has been confirmed by their characteristic XRD, colour, UV-visible and fluorescence spectra as well as decay time measurements. Ruby (Cr3+/α-Al2O3) powder showed characteristic excitation bands at 406 and 548 nm and emission band at 695 nm with the decay time of 3·6 ms. © 1990 The Indian Academy of Sciences.

引用

页码：179 / 189

页数：11

共 24 条

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