NDLI: Manufacturing challenges in obtaining tailor-made closed-cell structures in metallic foams

Content Provider	Springer Nature Link
Author	Raj, R. Edwin Daniel, B. S. S.
Copyright Year	2007
Abstract	The evolution of closed-cell aluminum foam synthesized by titanium hydride decomposition is explained on the basis of foam stability and gravity-induced drainage of liquid. While the average pore size progressively increases due to TiH2 decomposition, the aspect ratio shows a sudden transition during the holding period. The sudden increase in aspect ratio with the major axis transverse to the growth direction is explained on the basis of the loss of elasticity of the cell wall due to drainage and subsequent cell wall collapse due to the weight of the overlying foam. Intermetallic particles with a high aspect ratio distributed in the cell wall matrix significantly improve the stability of the liquid foam. It is demonstrated that by varying a single process parameter, such as the holding time, foams with a wide range of structural parameters are accessed. The Gibson and Ashby model showed good correlation with the plateau stress and Young’s modulus results presented in this work.
Starting Page	605
Ending Page	612
Page Count	8
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	38
Issue Number	5-6
e-ISSN	14333015
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-10-25
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Aluminum foam Closed-cell foam Foam stabilization Blowing agent Mechanical properties Computer-Aided Engineering (CAD, CAE) and Design Mechanical Engineering Production/Logistics Industrial and Production Engineering
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

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