Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/8259
Title: Effect of preheating treatment at 575 degrees C of green compacts on porous NiAl
Authors: Dong, HX
He, YH
Zou, J
Xu, NP
Huang, BY
Liu, CT
Keywords: NiAl intermetallics
Porous materials
Preheating treatment
Issue Date: 2010
Publisher: Elsevier
Source: Journal of alloys and compounds, 2010, v. 492, no. 1-2, p. 219-225 How to cite?
Journal: Journal of alloys and compounds 
Abstract: The effect of preheating treatment on NiAl compacts was systematically investigated. The preheating treatment of green compacts at 575 degrees C preserves their original shapes. The formation of porous NiAl alloys usually accompanies with the volume expansion due to the formation of Ni(2)Al(3) during the preheating treatment. The pore structures of porous NiAl alloys strongly depended on the preheating duration. The volume expansion, porosity and the maximum pore size increased with prolonged preheating treatment duration. Whereas the maximum pore size of final product decreased with increased preheating treatment duration. It has been found that the pore structures especially the maximum pore size strongly depend on the volume expansion determined by the intensity of exothermic reaction from the preheating temperature to the finally sintering temperature.
URI: http://hdl.handle.net/10397/8259
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2009.12.018
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