Glycol-nitrate combustion synthesis of fine sinter-active yttria

被引:47
作者
Dasgupta, N [1 ]
Krishnamoorthy, R
Jacob, KT
机构
[1] Bharat Heavy Elect Ltd, Ceram Technol Inst, Bangalore 560012, Karnataka, India
[2] Indian Inst Sci, Ctr Mat Res, Bangalore 560012, Karnataka, India
[3] Indian Inst Sci, Dept Met, Bangalore 560012, Karnataka, India
来源
INTERNATIONAL JOURNAL OF INORGANIC MATERIALS | 2001年 / 3卷 / 02期
关键词
oxides; chemical synthesis; thermogravimetric analysis; electron microscopy; microstructure;
D O I
10.1016/S1466-6049(00)00108-2
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Yttrium oxide has been synthesized from yttrium nitrate by combustion synthesis using ethylene glycol as the fuel. The combustion characteristics, thermal decomposition, crystallite pattern of the reaction product, and densification of the calcined powders were studied for different glycol/nitrate ratios. The microstructural evolution of the reaction product with increasing calcination temperature was studied. By sintering compacted powders at 1698 K for 7.2 hs. 96% of the theoretical density was achieved. The average grain size was 3 mum and there was no evidence of intra-granular porosity. (C) 2001 Elsevier Science Ltd. All rights: reserved.
引用
收藏
页码:143 / 149
页数:7
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