Title: Manufacturing of nanocomposite structural ceramic materials and coatings

Authors: R. Gadow, F. Kern, A. Killinger

Addresses: Institute for Manufacturing Technologies of Ceramic Components and Composites, IMTCCC, Universitat Stuttgart, Allmandring 7b, D-70569 Stuttgart, Germany. ' Institute for Manufacturing Technologies of Ceramic Components and Composites, IMTCCC, Universitat Stuttgart, Allmandring 7b, D-70569 Stuttgart, Germany. ' Institute for Manufacturing Technologies of Ceramic Components and Composites, IMTCCC, Universitat Stuttgart, Allmandring 7b, D-70569 Stuttgart, Germany

Abstract: So far research on ceramic nanocomposites was focused on materials science aspects neglecting the development of suitable manufacturing technologies. The high performance properties of nanocomposites make final machining unaffordable. Near-net-shape manufacturing is mandatory to accomplish cost targets. Feedstocks with tailored micro-nano architecture can fulfil these requirements, using homogeneously dispersed nanosized powders in a matrix of sub-micron sized grains. Nanoceramic coatings deposited by thermokinetic deposition processes open new prospects and applications in surface technology. The novel HVSFS-process permits direct spraying of liquid nanodispersions in a HVOF torch yielding ultradense and thin oxide and cermet coatings for automotive, aerospace and mechanical engineering.

Keywords: ceramic nanocomposites; manufacturing; coatings; near net shape; HVSFS; nanotechnology; structural ceramics; nanoceramic coatings; thermokinetic deposition.

DOI: 10.1504/IJMPT.2009.025685

International Journal of Materials and Product Technology, 2009 Vol.35 No.3/4, pp.334 - 345

Published online: 23 May 2009 *

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