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Subject: Re: E-Beam crucible liner for aluminium

Date: 06/17/02 at 1:56 PM
Posted by: jim moore
E-mail: jimtli@pacbell.net
Message Posted:

In Reply to: E-Beam crucible liner for aluminium posted by chandana on 06/07/02 at 12:21 AM:

no it will alloy. use graphite or coated graphite and plan on throwing them away often -or- use boron nitride and plan on throwing them away less often. aluminum is very reactive when molten and will in time destroy any liner used. You can evaporate without a liner although it will not be very stable and will getter any oxegen in the system. remeber to never overfill a liner with aluminum or it will crack fill to ~70% of the liner volume.

good luck,
jim


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