Solid State Single Crystal Growth Of BaTiO3

摘要

The present invention relates to a single crystal growth method of the barium titanate (BaTiO _3). The present invention, as the temperature increases in the liquid phase forming temperature above Thus, in the single crystal growth method of the barium titanate (BaTiO ₃₎ that has two abnormal grain growth phenomenon across the primary and secondary, (a) starting the secondary abnormal grain growth the step of heat-treating at a temperature more than a small number of particles generating a second abnormality; And (b) lowering the annealing temperature below the secondary abnormal grain growth starting temperature, characterized in that comprises the step of producing a single crystal by Sikkim growth to continue only the second abnormal grain produced in the step (a). Single crystal growth method of the barium titanate (BaTiO ₃₎ according to the present invention, since a special device may be made of a single crystal through a common heat treatment process without the need to have the advantage of producing a single crystal in bulk at a low cost. Further, the single crystal growth method of the barium titanate (BaTiO ₃₎ according to the present invention can grow a single crystal without any limitation on the single crystal size, as well as barium titanate (BaTiO _3), it can be applied to any type taking place sheets of abnormal grain growth .