[Back]

J. Homa, S. Zellhofer, A. Liersch, J. Stampfl:
"Solid Freeform Fabrication Of Monolithic Cross Flow Filters For Diesel Particulate Filtration";
Talk: 2^nd International Congress On Ceramics, Verona; 06-29-2008 - 07-04-2008; in: "2^nd International Congress On Ceramics Global Roadmap For Ceramics Icc2 Proceedings", ISTEC-CNR, Institute of Science and Technology for Ceramics, (2008), ISBN: 978-88-8080-084-2; Paper ID 5-O13-ID 268, 6 pages.

Currently most of the ceramic Diesel Particulate Filters (DPFs) are produced in a honeycomb shape by extrusion. Due to the alternate plugging of the channels, inorganic ashes are accumulated in the filter. Cross flow filters can avoid this accumulation by introducing a removable ash-chamber. This paper describes the production process of cross flow DPFs made of recrystallized silicon carbide by gelcasting in combination with different wax mould fabrication techniques. The material was analyzed with respect to its mechanical and thermal properties. It is shown that both the flexural strength and the thermal conductivity are strongly dependent on the average pore radius.

Project Head Jürgen Stampfl:
Rapid Prototyping zellularer Keramiken