期刊
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
卷 22, 期 9, 页码 2179-2183出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-6326(11)61446-5
关键词
FeAl; intermetallics; porous material; tortuosity factor
资金
- National Basic Research Program of China [2009CB623406]
- National Natural Science Foundation of China [50825102, 50721003, 51071178]
- Natural Science Foundation of Hunan Province, China [11JJ4036]
- Central South University Free Exploring Project, China
The tortuosity factor is the most critical parameter for the pore characteristic of porous materials. The tortuosity factor for porous FeAl intermetallics was studied based on the Darcy law and Hagen-Poiseuille equation. Porous stainless steel with the same pore structure parameter as porous FeAl was fabricated by powder metallurgy method for comparison. The results show that the tortuosity factor of porous FeAl intermetallics is smaller than that of porous stainless steel when their pore structure parameters are the same. The average tortuosity factor is 2.26 for the porous FeAl material and 2.92 for the porous stainless steel, calculated by Hagen-Poiseuille equation. The reason of the different tortuosity factors for porous FeAl and porous stainless steel was also explored through studying the pore formation mechanisms of the two types of porous materials.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据