PREPARATION AND PROPERTIES OF FINE PARTICLE NICKEL ZINC FERRITES - A COMPARATIVE-STUDY OF COMBUSTION AND PRECURSOR METHODS

被引:63
作者
SURESH, K [1 ]
PATIL, KC [1 ]
机构
[1] INDIAN INST SCI, DEPT INORGAN & PHYS CHEM, BANGALORE 560012, KARNATAKA, INDIA
关键词
D O I
10.1016/0022-4596(92)90283-2
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Fine particle nickel-zinc ferrites, NixZn1-xFe2O4 where x = 0.2-0.8 have been prepared, both by the thermal decomposition of the precursor, (N2H5)3NixZn1-xFe2(N2H3COO)9 · 3H2O and combustion of redox mixtures containing nickel nitrate, zinc nitrate, iron(III) nitrate, and oxalic acid dihydrazide (ODH) in the required mole ratio. Both the processes yield submicrometer size (60-90 nm), large surface area (85-108 m2/g), sinteractive powders which when heated at 1050°C, 3 hr achieve >98% of the theoretical density. © 1992 Academic Press, Inc. All rights reserved.
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页码:12 / 17
页数:6
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