PROBLEM TO BE SOLVED: To provide a method of manufacturing a ceramic formed body by which ceramic particles are deposited on a base material by electrophoresis method without restricting the quality of the base material and without causing bubbles even not using a reducing agent or the like, and to provide an electrophoresis apparatus used therefor. SOLUTION: In the method of manufacturing the ceramic formed body which is carried out by on-off-controlling the application of DC voltage to the base material with a prescribed frequency in the electrophoresis, the electrophoresis apparatus comprises a cathode material and an anode material which are arranged in a suspension vessel and a power source mechanism 5 for applying DC voltage, wherein the power source mechanism is provided with a voltage and current control structure and a frequency control structure for controlling on-off pulse frequency for the applied voltage. COPYRIGHT: (C)2009,JPO&INPIT

Method of manufacturing ceramic formed body, and electrophoresis apparatus used therefor

PURPOSE:To form a bismuth oxide coating film having a uniform thickness and a smooth surface by suspending bismuth oxide powder in ketone as a solvent, placing electrodes in the resulting suspension, supplying electric current and electrodepositing bismuth oxide on a substrate fitted with a cathode terminal CONSTITUTION:Ketone as a solvent 13 is filled into a cell 10 for electrophoresis housed in an ultrasonic generator 11 and bismuth oxide powder is suspended in the solvent 13 Electrodes 15, 17 are placed in the resulting suspension, DC high voltage square-wave pulse is impressed with a power source 19 and a control system 20 and bismuth oxide is electrodeposited on the surface of an electrode substrate 15 fitted with a cathode terminal Acetone, methyl isobutyl ketone or methyl ethyl ketone is suitable for use as the ketone as the dispersive solvent 13 The uniformly dispersed state of the bismuth oxide powder is stably maintained for a long time and an electrolyte coating film having a uniform thickness and a smooth surface is formed

Yamaguchi Kenichi

Papers

Coating method with bismuth oxide