Method for growing oxide single crystals
Abstract
Abstract A METHOD FOR FORMING STOICHIOMETRICALLY PROPORTIONED REFRACTROY OXIDE SINGLE CRYSTALS FROM A MIXTURE OF A CATIONIC HALIDE SUCH AS MAGNESIUM FLUORIDE AND A CATIONIC OXIDE SUCH AS ALUMINUM OXIDE, IN WHICH THE CATIONS FROM BOTH THE HALIDE AND THE OXIDE FORM THE MULTIPLE CATIONIC COMPONENTS OF THE RESULTANT CRYSTALLINE MATERIAL. THE METHOD INVOLVES THE STEPS OF HEATING THE MIXTURE TO A TEMPERATURE SLIGHTLY ABOVE ITS MELTING POINT FOR ABOUT ONE HOUR TO EFFECT AN APPARENT HYDROLYSIS OF THE HALIDE AND FORM A HOMOGENOUS MELT FOLLOWED BY THE STEP OF COOLING THE MELT WITHIN A PROGRAMMED COOLING RATE RANGE OF FROM ABOUT 0.5*C. PER HOUR TO ABOUT 10*C. PER HOUR TO A TEMPERATURE WHICH IS SLIGHTLY ABOVE THE SOLIDIFICATION POINT OF THE MELT.
Inventors
- 👤 Cortland O Dugger
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