Ceramic Substrates:

Passenger Cars

Ceramic substrates made of cordierite have been used in the purification of exhaust gas from automotive engine engines world-wide. In addition to light weight, a variety of shapes offer flexibility for the converter design. Over 1 billion substrates have to date been used in automotive applications.

Advanced Ceramic Substrates

Automobile manufacturers and emission system suppliers continue to provide new technology for low temperature capability and high temperature durability. The targets of higher engine power (reduced pressure drop), higher fuel economy, and durability continue to be required from the automotive industry. Various new technologies are presently available for these requirements and are presented here.

Thin Wall and Ultra Thin

Wall Substrate

Bulk density and cell structure have a direct effect on the warm-up characteristics of the substrate. By reducing the bulk density wall thickness, and increasing geometric surface area (GSA), the substrate not only warms up faster, but also improves catalytic activity.

• Compliance with tighter emission regulation.

• Catalyst down-sizing and saving precious metal.

• Low pressure drop.