Method for producing orientational ceramic, orientational ceramic, and ceramic electronic component
AssigneeMurata Manufacturing Co., Ltd.
InventorsYasunari Miwa, Shinichiro Kawada, Masahiko Kimura
Life of this patent
Estimating the term…
Abstract
An additive that contains an emulsion binder resin substantially free of non-emulsion binder resin, such as an emulsion acrylic resin, is mixed into a ceramic raw material powder containing, as its main constituent, a perovskite-type compound to form a ceramic slurry. Then, an orientational ceramic is prepared by subjecting the slurry to a forming process while simultaneously or sequentially applying a magnetic field and drying the slurry. An orientational ceramic, even formed from a substance which has small magnetic anisotropy, such as PZT, is obtained.
Claims20
A method for producing an orientational ceramic comprising:
- providing a ceramic slurry comprising an additive containing an emulsion binder resin and a ceramic raw material powder containing, as its main constituent, a composite oxide which has a perovskite-type crystalline structure, wherein the slurry is substantially free of non-emulsion binder resin;
- forming the ceramic slurry into a ceramic compact while applying a magnetic field;
- and firing the ceramic compact, thereby preparing the orientational ceramic.
An orientational ceramic comprising a fired ceramic compact comprising a magnetic field orientated combination of an emulsion binder resin and a composite oxide which has a perovskite-type crystalline structure, and the combination being substantially free of non-emulsion binder resin.
Dependencies are inferred from the claim text.