Quote: Originally posted by Admagistr | I used a sapphire crucible made from 99.999% Al203,powdered oxide mixture, Ga2O3 for semiconductors and Cr2O3 spectroscopically pure.I placed the
crucible in a cavity in a chamotte brick.The melting was done with a mini autogenous flame(propane + compressed oxygen.) After the reaction I covered
everything with a chamotte brick.
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Pictures would be great.
Also explain a little about "a mini autogenous flame(propane + compressed oxygen.)", please. |