Title:
CERAMIC SINTERED BODY AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2022/019181
Kind Code:
A1
Abstract:
Provided is a flat-shaped ceramic sintered body 100 having a pair of principal planes 12, wherein an average value of the maximum height roughness (Rz) is 10 μm or less, the maximum height roughness (Rz) being measured along a center line L1 of a side surface 14 which is parallel to the pair of principal planes 12. Also provided is a method for producing a ceramic sintered body, the method comprising: a step for obtaining a ceramic green sheet by punching a ceramic green sheet substrate by means of a cutting device provided with a die and a punch; and a step for obtaining a ceramic sintered body by firing the ceramic green sheet, wherein the cutting device punches the ceramic green sheet substrate while biasing, toward the punch, a surface part of the ceramic green sheet substrate which is opposite to a surface part pressed by the punch.
Inventors:
YAMAGATA TOSHITAKA (JP)
MATSUO YOUJI (JP)
WATANABE RYUHEI (JP)
MATSUO YOUJI (JP)
WATANABE RYUHEI (JP)
Application Number:
PCT/JP2021/026339
Publication Date:
January 27, 2022
Filing Date:
July 13, 2021
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
B28B11/12; B28B1/30; C04B35/00; C04B35/622
Foreign References:
| JPS63115705A | 1988-05-20 | |||
| JPS59153206U | 1984-10-15 | |||
| JPS55171507U | 1980-12-09 | |||
| JPS5712530U | 1982-01-22 | |||
| JPH04282203A | 1992-10-07 | |||
| JPH0663894A | 1994-03-08 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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