aluminate (gahnite) crystals was observed at the interface between the alumina crucible wall and the

°C, wollastonite and diopsite crystals formed The compressive strength of the foams ranged between 1

frit-refractory interface where also other crystals of mullite and alumina were found to precipitate. Increasing

crystals of PbVO3Cl. In the nature, there is a kombatite mineral, Pb14(VO4)2O9Cl4, with the same

layer to contact with gold, crystal and silver epoxy. 150-200 nm crystals were shadowed by aluminum foil