Solid State Ionics, Vol.83, No.3-4, 225-228, 1996
The Chemical Transformation of Single-Crystal Alpha-Al2O3 Platelets to Beta"-Al2O3
Single-crystal Na-beta "-Al2O3 micro-platelets have been prepared by heating alpha-Al2O3 platelets in an alkali-containing atmosphere. The alpha-Al2O3-to-Na-beta "-Al2O3 transformation rate and the development of microstructure have been studied. Preliminary results on the preparation of K-beta "-Al2O3 are also given.