Recrystallized SiC: The Breathable Badass That Laughs at 1,650°C

Hey Jack, out there in LA where the Santa Ana winds can turn a backyard grill into a furnace—imagine materials that treat 1,650°C like a warm spring day. That’s recrystallized silicon carbide (RSiC) for you. I’ve been knee-deep in high-temp ceramics for damn near 38 years now, from dusty kiln shops in Ohio to shiny labs in Germany, and RSiC is one of those materials I keep coming back to. It’s not the flashy, fully dense stuff that gets all the hype; this porous wonder is the quiet workhorse that keeps big operations from melting down—literally. In this piece, I’ll walk you through what the hell it is, how we make it, where it crushes it in the real world, and a few hard-earned tricks from the trenches. Stick with me; we’re clocking in right around 800 words of shop-floor truth.