Interpenetrating Network Metal-Ceramic FGM – Preparation and Properties

Abstract:

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A new method for processing large flat compositionally graded metal-ceramic parts with connected interpenetrating metal and ceramic network is described. Based on powder metallurgical methods, a metal foam is obtained by slip casting of metal powder slurries on a polyurethane foam, and used as preform to achieve a metallic interpenetration within the composite. The porous metallic preform is infiltrated with a ceramic slip and co-sintered. The metallic part is made from Ni-Cr-alloy, or the P/M superalloy Saratherm 2 and Nimonic 90, the ceramic consists of pure 8Y-ZrO2 or zirconia mixed with ZrSiO4. Composites of nominal same composition sintered without the metal foam preform show no metallic interpenetration.

Info:

Periodical:

Materials Science Forum (Volumes 631-632)

Edited by:

Akira Kawasaki, Akinaga Kumakawa and Masayuki Niino

Pages:

471-476

DOI:

10.4028/www.scientific.net/MSF.631-632.471

Citation:

M. Neukam and M. Willert-Porada, "Interpenetrating Network Metal-Ceramic FGM – Preparation and Properties", Materials Science Forum, Vols. 631-632, pp. 471-476, 2010

Online since:

October 2009

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Price:

$35.00

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