News for hackers. Stuff that matters.
Re:The First Room-Temperature Ambient-Pressure Superconductor by ridgeguy on Tuesday July 25, 2023 @01:13PM (#36865715)
I've looked briefly at the materials synthesis (first part of their Supplementary Materials section). I agree with you, the synthesis is trivial. The 10e-5 vacuum is easily reached with a turbopump backed by a mechanical pump, nothing exotic or expensive.
Re:The First Room-Temperature Ambient-Pressure Superconductor by foxhill on Tuesday July 25, 2023 @03:10PM (#36867789)
indeed, and i wonder if you could elide the vacuum entirely with a noble gas (presuming the vacuum is required to avoid reactions with atmospheric gases)
Re:The First Room-Temperature Ambient-Pressure Superconductor by ridgeguy on Tuesday July 25, 2023 @10:29PM (#36872429)
Could be, and good idea.

If they're processing in a vacuum to avoid N2 and/or O2 and/or H2O chemistry, then a dry inert gas might be useful.

Heating above 100°C to drive off H2O, followed by a purge with dry Ar might give the desired result without needing a vacuum system.