| 摘要 |
PURPOSE:To control the orientation of the crystal by once heating and melting a material containing the component element of an oxide superconductor with the desired composition, coagulating and cooling it in one direction from one end side of the length direction of the half-melted state or the melted state, then crushing it. CONSTITUTION:A raw material 2 containing the component element of an oxide superconductor with the desired composition is filled in a boat 1, it is heated and melted in an electric furnace 3, a cord 4 is wound on a drum 5 to move the boat 2 when the half-melted state or the melted state is attained. The raw material 2 in the melted state starts to be coagulated and cooled in one direction from the pulling side due to this shift, the raw material 2 is formed into a slender crystal structure in the length direction when it is continuously cooled to the other end. It is heat-treated at a relatively low temperature in the oxygen containing atmosphere, it is then crushed to obtain an oriented flake-shaped oxide superconductor. The axis-oriented flake-shaped oxide superconductor is obtained. |
