Method of producing ceramic
AssigneeMurata Manufacturing Co., Ltd.
InventorsHirozumi Ogawa, Masahiko Kimura, Akira Ando
Life of this patent
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Abstract
A ceramic powder of grains having a shape-anisotropy is mixed with a calcined or uncalcined (or both) powder of a ceramic raw material. A ceramic slurry containing the produced mixed powder, a solvent and a binder is prepared and the ceramic slurry is formed into a sheet. A laminate comprising a plurality of the sheets laminated to each other is uniaxially pressed to form an oriented product in such a manner that the length of the laminate in the direction parallel to the pressing axis becomes larger than that before the pressing, and the area of a plane perpendicular to the pressing axis of the laminate becomes larger than that before the pressing. The oriented formed product is fired and sintered.
Claims13
A method of producing a ceramic comprising:
- preparing a ceramic slurry comprising a powder of ceramic crystal grains having a shape-anisotropy mixed with a ceramic raw material powder or a calcined ceramic raw material powder, or both;
- forming the ceramic slurry to produce a sheet product;
- uniaxially pressing the sheet product so that the length of the product in the direction parallel to the pressing axis is decreased compared to that before the pressing, and the area of a plane perpendicular to the pressing axis of the product is increased compared to that before the pressing, whereby an oriented formed product is produced;
- and
- sintering the oriented formed product.
Dependencies are inferred from the claim text.