"cleaning" alumina crucible

could anyone suggest me how to "clean" alumina crucible. i tried to
sinter some powder at 800C and it left behind some coating inside the
crucible. tried using conc. acids, but not working well..any
suggestions!!!
Reply to
Fasttrack
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What powder did you try to sinter in an alumina crucible?
Michael Dahms
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Michael Dahms
Thanks Michael. it is some yttrium vanadates and also in other crucible some str> Fasttrack wrote:
Reply to
Fasttrack
You must check by separate experiments, which acids dissolve the above mentioned compounds.
Very often, a crucible can be just used once, if strong reactions with the sintered powder occur. Or a certain crucible is always used for a certain type of powder.
Michael Dahms
BTW: Please read
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Michael Dahms
Thanks!!.
Michael Dahms wrote:
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Fasttrack

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