Sintering of Fe2NiO4 with an internal binder:: a way to obtain a very dense material

被引：12
作者：
Domenichini, B [1 ]
Caillot, T [1 ]
机构：
[1] Univ Bourgogne, CNRS, UMR 5613, Lab Rech Reactivite Solides, F-21078 Dijon, France
来源：
ACTA MATERIALIA | 2003年 / 51卷 / 16期
关键词：
sintering; compaction; Fe2NiO4; dilatometric measurements; thermal gravimetry;
D O I：
10.1016/S1359-6454(03)00321-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The coupled synthesis and sintering of Fe2NiO4 can be carried out from the calcination under air at high temperatures (> 1200 degreesC) of precompacted (under 12 MPa) pellets of different mixtures: NiO/alpha-Fe2O3; NiO/alpha-Fe2O3/Fe; NiO/alpha-Fe2O3/Ni. The densest material is obtained at 1200 degreesC only from the following mixture: NiO (40 mol%), alpha-Fe2O3 (50 mol%) and Ni (10 mol%). Because the metallic nickel is very ductile, it is used as an internal binder in order to enhance the precompacting of the samples. Moreover, the role of nickel is to enhance the sintering reaction. This route leads to a final material of relative density close to 98 +/- 2%. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页码：4815 / 4821
页数：7
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