Pore structure control for porous FeAl intermetallics

Gao, Haiyan, He, Yuehui, Zou, Jin, Xu, Nanping and Liu, C. T. (2013) Pore structure control for porous FeAl intermetallics. Intermetallics, 32 423-428. doi:10.1016/j.intermet.2012.08.030


Author Gao, Haiyan
He, Yuehui
Zou, Jin
Xu, Nanping
Liu, C. T.
Title Pore structure control for porous FeAl intermetallics
Journal name Intermetallics   Check publisher's open access policy
ISSN 0966-9795
1879-0216
Publication date 2013-01-01
Year available 2012
Sub-type Article (original research)
DOI 10.1016/j.intermet.2012.08.030
Open Access Status Not Open Access
Volume 32
Start page 423
End page 428
Total pages 6
Place of publication London, United Kingdom
Publisher Elsevier
Language eng
Formatted abstract
Pore structure control methods for porous FeAl intermetallics were studied in this paper based on pore formation mechanism. A large range of pore structure parameters can be obtained through fabrication parameter adjustment in porous FeAl preparation procedure. Open porosity and maximum pore size of porous FeAl have a direct proportional relationship to the powder size of raw materials and an inversely proportional relationship to the pressing pressure. The relationship between maximum pore size (dm) and raw material powder size (dp) can be determined as dm=0.40dP. Open porosity and maximum pore size decrease with increasing holding time at solid diffusion reactive procedure. The quantitative relationship between open porosity (θ) and holding time (t) at 600 °C is θ = 49.70.1(60 ≤ t ≤ 240);  the quantitative relationship between maximum pore size (dm) and holding time (t) at 600 °C is dm = 20.3 – 0.065t  (60 ≤ t ≤ 240)
Keyword Iron aluminides
Reaction synthesis
Fe-40Al sheet
Al content
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online 22 October 2012

 
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