| Fe-Al系金属间化合物多孔材料的制备及孔结构表征 |
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| 引用本文： | 高海燕,贺跃辉,沈培智,江垚,黄伯云,徐南平.Fe-Al系金属间化合物多孔材料的制备及孔结构表征[J].粉末冶金材料科学与工程,2009,14(4):275-280. |
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| 作者姓名： | 高海燕 贺跃辉 沈培智 江垚 黄伯云 徐南平 |
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| 作者单位： | 1. 中南大学,粉末冶金国家重点实验室,长沙,410083
2. 南京工业大学,膜科学技术研究所,南京,210009 |
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| 基金项目： | 国家自然科学基金重点项目，国家杰出青年科学基金资助项目(50825102):国家自然科学基金创新团队项目 |
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| 摘 要： | 以Fe、Al元素粉末为原料,采用分段无压反应合成工艺制备Fe-Al系金属间化合物多孔材料,并对其孔结构进行表征.通过改变Fe-Al元素的配比,研究Al含量对Fe-Al金属间化合物多孔材料透气度和最大孔径以及孔隙度的影响.结果表明,Al含量对Fe-Al金属间化合物多孔材料孔隙度的影响显著.在Al含量(质量分数)20%～45%的范围内,Fe-Al金属间化合物多孔材料的孔隙度与Al含量之间遵循严格的直线增加规律;Al含量对Fe-Al金属间化合物多孔材料最大孔径和透气度的影响与对孔隙度的影响相似.本实验条件下Fe-Al系金属间化合物多孔材料中透气度(k),开孔隙度(θ)和最大孔径(dm)之间的定量关系式为:K=0.2538dm2θ.
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| 关 键 词： | 金属间化合物 多孔材料 孔结构 |
Fabrication and pore structure characteristics of porous Fe-Al intermetallics |
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| GAO Hai-yan,HE Yue-hui,SHEN Pei-zhi,JIANG Yao,HUANG Bai-yun,XU Nan-ping.Fabrication and pore structure characteristics of porous Fe-Al intermetallics[J].materials science and engineering of powder metallurgy,2009,14(4):275-280. |
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| Authors: | GAO Hai-yan HE Yue-hui SHEN Pei-zhi JIANG Yao HUANG Bai-yun XU Nan-ping |
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| Affiliation: | GAO Hai-yan1,HE Yue-hui1,SHEN Pei-zhi1,JIANG Yao1,HUANG Bai-yun1,XU Nan-ping2 (1. State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China,2. Membrane Science and Technology Research Center,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | Porous FeAl intermetallics has been prepared through step pressureless reactive synthesis using Fe, Al powder as raw materials and the pore structure of porous FeAl has been characterized. The effect of Al content on the permeability, maximum pore size and porosity of porous FeAl intermetallics has also been studied through change the proportion of Fe and Al elemental powder. The results show that the Al content is one of the main factors for the porosity, and strictly linear increment rule between the poro... |
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| Keywords: | Fe-Al |
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