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Corelle Fragments

I fumble-fingered a plate, it fell between my tummy and the counter, and hit the floor edge-on. There’s a lot of energy stored in that stretched-glass ceramic layer! [Update: The glass is under compression.]

Shattered Corelle plate on floor

Shattered Corelle plate on floor

The fragments tend to be slivers rather than chunks, all with better-than-razor-sharp edges:

Corelle slivers

Corelle slivers

A bit more detail on Corelle in that post

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  1. #1 by Aki on 2011-09-27 - 09:29

    “The firing takes 20 hours, and the temperature is 1260 °C.”

    http://www.arabia.fi/web/Arabiawww.nsf/en/about_arabia_production_and_materials

    Hot stuff…

    • #2 by Ed on 2011-09-27 - 13:18

      And that’s not even with the glass outer coating!

      Of course, when a mug like that hits the floor, it leaves a nasty dent before shattering into a zillion pieces…

  2. #3 by peter on 2011-09-28 - 11:56

    Reminds me of a Rupert’s drop….

    http://en.wikipedia.org/wiki/Prince_Rupert's_Drop

  3. #4 by peter on 2011-09-28 - 12:00

    Video shows what happens pretty clearly. Pity it doesn’t show how you can whack the glass bulb with a hammer till you’re blue in the face without it shattering…. but snap a tiny bit off its thin tail and it will explosively disintegrate.

    • #5 by Ed on 2011-09-28 - 19:13

      snap a tiny bit off its thin tail

      I’m surprised our plates haven’t detonated in the cupbord by now: they’re chipped around the edges from rattling in the dishwasher. Turns out the plastic coating on the rack wires developed little gaps where the plates bear down…