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The graphite vacuum furnace is utilized to remove off-gas impurities from the general purpose heat source (GPHS) graphite components. The components are then stored in canisters with an argon cover gas to keep them from oxidizing, which would reduce the quality of the thermal conductivity.     


  • 1,700°C maximum

  • Vacuum: 1 x 10-5 Torr. No partial vacuum control

  • Glovebox atmosphere control: < 5 PPM H2O, < 10 PPM O2

  • Graphite elements and liners

  • 12” x12” x 24” (HWD)  work chamber

  • Turbo pump

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