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Journal of Porous Media
Facteur d'impact: 1.752 Facteur d'impact sur 5 ans: 1.487 SJR: 0.43 SNIP: 0.762 CiteScore™: 2.3

ISSN Imprimer: 1091-028X
ISSN En ligne: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v14.i4.20
pages 295-303

MEDIUM-POROSITY SINTERED IRON COMPACT AND THE CORRELATION BETWEEN THE PARAMETERS AFFECTING ITS POROSITY DEGREE USING EXPERIMENTAL DESIGN TECHNIQUE

Yasser M. Z. Ahmed
Central Metallurgical Research and Development Institute, CMRDI, Helwan, Cairo, Egypt
B. A. Iskander
Academy of Specialized Studies, Department of Technology, Development Workers University, Cairo, Egypt
F. M. Mohamed
Central Metallurgical Research and Development Institute, CMRDI, Helwan, Cairo, Egypt
M. Ibrahim
Central Metallurgical Research and Development Institute, CMRDI, Helwan, Cairo, Egypt
M. E. H. Shalabi
Central Metallurgical Research and Development Institute, CMRDI, Helwan, Cairo, Egypt

RÉSUMÉ

Porous iron compacts with a porosity degree in the range of (20−70%) have received great attention as a result of their unique properties. There are various parameters controlling fabrications of such compacts using powder metallurgy techniques. Sintering temperature, sintering time, compaction pressure, as well as the amount of filler materials (naphthalene amount added as pore-forming materials) represents the most effective parameters during fabrication. With the aid of experimental design technique (full factorial design), correlation between all of these parameters and the porosity degree of the final sintered compacts is evaluated. It was found that while compaction pressure has the most positive significant effect on total porosity, the amount of naphthalene had the highest negative effect on it. On the other hand, the interaction between both naphthalene amount and compaction pressure as well as between naphthalene amount and sintering temperature is significant, affecting the total porosity of the final porous iron compacts.


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