Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Making porous product
Reexamination Certificate
2005-02-08
2005-02-08
Mai, Ngoclan T. (Department: 1742)
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Making porous product
C419S041000, C075S228000, C264S044000, C264S045900
Reexamination Certificate
active
06852272
ABSTRACT:
The present invention relates to the fabrication of low cost, in situ, porous metallic, ceramic and cermet foam structures having improved mechanical properties such as energy absorption and specific stiffness. Methods of fabricating the structures from compositions including ceramic and/or metallic powders are provided. The flowable compositions also include an immiscible phase that results in pores within the final structure. Furthermore, the structures may be shaped to have external porosity, such as with mesh-like structures.
REFERENCES:
patent: 2310061 (1943-02-01), Bowen
patent: 3050967 (1962-09-01), Fischer
patent: 3087807 (1963-04-01), Allen et al.
patent: 4196267 (1980-04-01), Watanabe et al.
patent: 4664883 (1987-05-01), Melody et al.
patent: 4889670 (1989-12-01), Gurak et al.
patent: 5151246 (1992-09-01), Baumeister et al.
patent: 5393485 (1995-02-01), Worz et al.
patent: 5846664 (1998-12-01), Third et al.
patent: 5848351 (1998-12-01), Hoshino et al.
patent: 5930580 (1999-07-01), Everett
patent: 5935514 (1999-08-01), Ford, Jr. et al.
patent: 5976454 (1999-11-01), Sterzel et al.
patent: 5998317 (1999-12-01), Sterzel
patent: 6171532 (2001-01-01), Sterzel
patent: 6254998 (2001-07-01), Tuchinsky
patent: 6410160 (2002-06-01), Landin et al.
patent: 6444007 (2002-09-01), Knott et al.
patent: 6524522 (2003-02-01), Vaidyanathan et al.
patent: 6565797 (2003-05-01), Miyakawa et al.
patent: 6660224 (2003-12-01), Lefebvre et al.
patent: 20010023027 (2001-09-01), Seeliger et al.
patent: 20020053542 (2002-05-01), Miyakawa et al.
patent: 20020112838 (2002-08-01), Frommeyer et al.
patent: 20020121157 (2002-09-01), Knott et al.
patent: WO 0154846 (2001-08-01), None
T. Daxner, H.J. Böhm, and F.G. Rammerstorfer, “Mesoscopic Simulation of Inhomogenous Metallic Foams with Respect to Energy Absorption,”Computational Materials Science 16, pp. 61-69 (1999).
Mark A. Janney, Stephen D. Nunn, Claudia A. Walls, Ogbemi O. Omatete, Randy B. Ogle, Glen H. Kirby, and April D. McMillan, “Geleasting,”The Handbook of Ceramic Engineering, 1998.
T.J. Lu, H.A. Stone and M.F. Ashby, “Heat Transfer in Open-Cell Metal Foams,”Acta Mater., vol. 46, No. 10, pp. 3619-3635 (1998).
S. Santosa and T. Wierzbicki, “On the Modeling of Crush Behavior of a Closed-Cell Aluminum Foam Structure,”J. Mech. Phys. Solids, vol. 46, No. 4, pp. 645-669 (1998).
S.P. Santosa, T. Wierzbicki, A.G. Hanssen and M. Langseth, “Experimental and Numerical Studies of Foam-Filled Sections,”International Journal of Impact Engineering 24, pp. 509-534 (2000).
PCT International Search Report mailed Jun. 18, 2003.
Artz Gregory
Cipriani Ronald A.
Fulcher Michael L.
Lombardi John L.
Rigali Mark J.
Advanced Ceramics Research, Inc.
Banner & Witcoff , Ltd.
Mai Ngoclan T.
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