Spark Plug Failure

1-s2-0-s2213290213000072-gr2An interesting paper in « Case studies in Engineering Failure Analysis » published on ScienceDirect.com.

This paper studies the failure of spark plugs designed for optimal durability which failed after only 100 hrs of operation. SEM-observation showed that in failed plugs the insulator was covered with a deposit consisting of iron oxides and soot.

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