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1996-10-01
Technical Paper
962078
Robert J. Locker, Constance B. Sawyer
Abstract A bench scale thermal cycling device was designed and constructed to expose large numbers of converters to simulated automobile cycling conditions. Ceramic catalytic converter systems exposed to this thermal cycling technique were observed to experience equivalent or more severe aging, depending on the aging temperature, than isothermal exposures. Cyclic thermal exposures were examined for two mat basis weights. Each mat was examined at two gap bulk densities. Change in converter residual shear strength, as a function of accumulated thermal cycles, was observed to follow a logarithmic relationship. Results of thermal cyclic engine exposures showed a strong correlation with laboratory bench studies.
2015-04-14
Journal Article
2015-01-1376
Thomas Leonhard, Thomas Cleary, Michael Moore, Shane Seyler, W Keith Fisher
Abstract This paper proposes a novel concept for lightweight vehicle design, offering a step change in weight reduction for automotive glazing. Reducing window weight can be achieved by decreasing the thickness of the glass plies used to form vehicle windows. However, reducing the thickness of conventional automotive windows also decreases its effective strength; therefore, concerns about glass breakage become a limiting factor for weight reduction. Chemically strengthened ultrathin Corning® Gorilla® Glass offers the potential to go beyond existing thickness limitations. Its higher strength compared to standard soda lime window glass allows the design of thin, low weight window constructions. In addition, its unique manufacturing process delivers pristine glass surfaces and precise thickness control for high quality window optics. While this concept can be applied to all vehicle openings, this study focuses on automotive windshield design.
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