| 摘要 |
A method of forming ultrahigh purity carbide powders on a production scale which comprises blending metal oxide powders with elemental carbon powders and a partially polymerized furfuryl alcohol binder together with a suitable polymerization catalyst, extruding, polymerizing the binder, heating to 840 DEG C for 48 hours in a soft vacuum, heating to 2,200 DEG C for 1 hour in a helium atmosphere, cooling, crushing, and then heating to 2,000 DEG C for 24 hours under a vacuum.
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