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Self Assembled Structures by Directional Solidification of EutecticsInterest in ordered porous structures has grown because of there unique properties such as photonic bandgaps, high backing packing density and high surface to volume ratio. Inspired by nature, biometric strategies using self assembled organic molecules dominate the development of hierarchical inorganic structures. Directional solidification of eutectics (DSE) also exhibit self assembly characteristics to form hierarchical metallic and inorganic structures. Crystallization of diphasic materials by DSE can produce two dimensional ordered structures consisting of rods or lamella. By selective removal of phases, DSE is capable to fabricate ordered pore arrays or ordered pin arrays. Criteria and limitations to fabricate hierarchical structures will be presented. Porous structures in silicon base alloys and ceramic systems will be reported.
Document ID
20050207432
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Dynys, Frederick W.
(NASA Glenn Research Center Cleveland, OH, United States)
Sayir, Ali
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2004
Subject Category
Nonmetallic Materials
Meeting Information
Meeting: AMS 28th International Cocoa Beach Conference
Location: Cocoa Beach, FL
Country: United States
Start Date: January 25, 2004
End Date: January 30, 2004
Sponsors: American Ceramic Society
Funding Number(s)
OTHER: 22-708-87-46
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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