Effect of Fe on sintering of Al2O3MgO-Fe2O3 spinel

被引:0
作者
Kharissova, OV [1 ]
Aguilar, JA [1 ]
Ortiz, U [1 ]
机构
[1] UANL, Fac Ingn Mecan & Elect, San Nicolas De Los Garza 66450, NL, Mexico
来源
NUCLEATION AND GROWTH PROCESSES IN MATERIALS | 2000年 / 580卷
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中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The influence of Fe on the microstructure of Al2O3-MgO-Fe2O3 spinel is described in this work. Heating a mixture of initial oxides in an electric furnace at 1400 degrees C for 15 hrs produced the spinel. A ternary diagram for concentration ranges: Al2O3 (5-75 mol%), MgO (10-80 mol%), and Fe2O3 (3-70 mol%) summarize the constitution of this spinel. Amount, composition and weight ratios of each phase were determined by X-rays powder diffraction. Microstructure of specimens was characterized by scanning electronic microscopy and Xray spectrometry. Distribution, size, shape of phases and pores were examined. Hardness measurements of spinel completed this study.
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页码:105 / 110
页数:6
相关论文
共 4 条
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ANTONY R, 1991, J AM CERAM SOC, V74, P865
[2]  
David Kingery W., 1976, INTRO CERAMICS, V17
[3]  
Maschio R.D., 1988, IND CERAM, V8, P121
[4]   Interdiffusion in the MgO-Al2O3 spinel with or without some dopants [J].
Zhang, P ;
Debroy, T ;
Seetharaman, S .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1996, 27 (08) :2105-2114