Durability and Performance of Thin Wall Ceramic Substrates

Paper #:
  • 990011

Published:
  • 1999-01-13
Citation:
Gulati, S., "Durability and Performance of Thin Wall Ceramic Substrates," SAE Technical Paper 990011, 1999, https://doi.org/10.4271/990011.
Pages:
7
Abstract:
The stringent emissions standards in the late 1990's like NLEV, ULEV and SULEV have led to major modifications in the composition and design of ceramic substrates. These changes have been necessitated to reduce cold start emissions, meet OBD-II requirements, and to ensure 100,000 mile durability requirement in a cost-effective manner. This paper presents the key advances in ceramic substrates which include lower thermal expansion, lighter weight, higher surface area and improved manufacturing process all of which help meet performance requirements. In addition to above benefits, the compressive and tensile strengths of lightweight substrates, as well as their thermal shock resistance, are found to be adequate following the application of high surface area alumina washcoat. The strength properties are crucial for ensuring safe handling of the substrate during coating and canning and for its long term mechanical durability in service.This paper provides the durability data for thin wall substrates with 600/4 and 400/4 square cell structure and compare them with those of standard substrate with 400/6.5 square cell structure.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Article
2017-03-13
Training / Education
2018-04-12