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Spark plugs in a tray are removed from a furnace after processing. Pacific Northwest National Laboratory researchers developed a ceramic glass seal for improved electrical resistance in spark plugs and showed automakers how they could upgrade their manufacturing process to mass-produce the spark plugs.

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Document Title: Spark Plug Ceramics
Category: Materials Science
Media Type: Photos
Date of Image/Photo: 1998
Background: This work was a CRADA with DOE, PNNL, and Delphi. GM uses the spark plug technology now in its cars.
URL of this page: http://picturethis.pnl.gov/picturet.nsf/by+id/AMER-6QSTPP

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