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that is also a problem i thought (last line of last issue). What I was thinking was that if some research group has already taken this, where for example the crystal structure has really high enthalpy (something like Al2O3) but also low enough activation energy, then at very low temps, the reaction will drive itself, and we can use fans to evaporate. I am sure there must be some goldy-locks zone somewhere
ceramics kinda don’t shrink. They do shrink, but CTE is very low (generally due to very deep potential wells). And assume we are at low temperature crystal growth range, we would see big crystals, with relatively low internal stresses.