PURPOSE: To certainly produce a molded object composed of a ceramic double- layer consisting of different material qualities as a thick-walled product having a healthy boundary structure formed thereto.

CONSTITUTION: In the production of a ceramics double-layer element, a slip forming a next layer after blow-off is supplied to a cavity in a deposition layer forming process due to a slip cast blow-off method and ultrasonic waves are subsequently applied to peel a part of an already deposited layer into the slip and the application of ultrasonic waves is stopped to deposit an inclined compsn. layer and the next layer.