V.G.Potapova, T.V.Druzenko, L.A.Litvinov, A.B.Blank
Received January 22, 1999
The surface corrosion resistance of corundum single crystals
has been studied depending on their growing method, crystallographic
orientation, structure perfection and machining method. To that end,
the layer-by-layer etching of the crystals by condensed phosphoric
acid followed by determination of dissolved aluminum using atomic
absorption electrothermal technique.