| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a laminated piezoelectric body excellent in reliability by forming a uniform glass insulation layer with suppressed defects in a side where the end of an internal electrode layer of a laminated piezoelectric material is exposed, and to provide its manufactured product. SOLUTION: This is a method for manufacturing a laminated piezoelectric material 1 to form an insulation by electrodepositing fine particles consisting of a glass insulation material on a part where an internal electrode layer 3 by electrophoresis to a laminated piezoelectric material having an interlaminated structure of a plurality of piezoelectric ceramic layers 2 and internal electrode layers 3 with exposed end faces of the internal electrode layers 3, wherein a glass insulating layer 4 consisting of a glass insulating material is so constituted as to be uniform on only the exposed part of the said internal electrode layer 3, or on both exposed part of the said internal electrode layer 3 and the surface of the piezoelectric ceramic layer 2 between the internal electrode layers 3, 3 by combining the said electrophoresis and a heat treating at a predetermined temperature. |
