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[–] 55 points 6 months ago* (4 children)

TL;DR: normal sand casting, using a microwave to heat up the metal inside an insulated silicon carbide crucible.

It's not, like, using the microwave to sinter a metal-powder 3D print or anything special like that.

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  • [–] [S] 7 points 6 months ago* (3 children)

    I didn't know silicon carbide heated up in the microwave. I learned something from the article.

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