METHOD FOR GROWING SINGLE CRYSTAL OF FUNCTIONALLY GRADIENT MATERIAL AND FUNCTIONALLY GRADIENT MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a method for growing a single crystal of a functionally gradient material and a functionally gradient material. SOLUTION: The method for growing a single crystal of a functionally gradient material and a functionally gradient material 30 is characterized in that in a focused heating floating zone melting method for growing a single crystal, different metals having different valences are made into solid solution, and the solid solution is repeatedly subjected to partial melting/recrystallization so that a gradient of segregated concentration of an additive is created along the longitudinal X direction in a single crystal material and thus a functionally gradient material 30 having different crystal properties in the gradient is grown.