Thermal Shock Resistant Alumina Based Diesel Soot Particulate Filters (DPF)

Dr.-Ing. W. Schärfl

TU Bergakademie Freiberg, Institute of Ceramic, Glass and Construction Materials, 09596 Freiberg, Germany


Volume 2, Issue 1, Pages 102 - 104


Thirty years of Diesel soot particulate filter development have enabled ceramic refractory materials to fulfill the requirements of the exhaust system in passenger cars. Silicon carbide wall flow filters currently have the highest market share. However, in automotive applications there is a continual effort to find more cost-effective and reliable materials and systems; an effort in large part enforced by increasing emission standards. A newly developed alumina-based DPF substrate is presented as an  economical and ecological alternative.


Diesel soot particulate filters (DPF), aluminabased substrate, ecological alternative, silicon carbide wall flow filters



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