In Spark-ignition engines, silicon nitride is useful for rocker arm pads for decrease dress in, turbocharger turbines for reduce inertia and fewer motor lag, and in exhaust fuel Management valves for increased acceleration. Presently, it is approximated that much more than three hundred,000 sintered silicon nitride turbochargers are made annually. https://americanglasslinedductile94714.wikifrontier.com/7800505/detailed_notes_on_boron_nitride