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Patent Searching and Data


Title:
CERAMIC ARTICLE PRODUCTION METHOD AND CERAMIC ARTICLE
Document Type and Number:
WIPO Patent Application WO/2020/116568
Kind Code:
A1
Abstract:
Provided are: a method for producing a ceramic article having a porous part and realizing improvement in mechanical strength of a molded article while obtaining high molding accuracy; and a ceramic article. This production method comprises: (i) a step for forming a powder layer by evenly spreading a powder of metal oxide that contains aluminum oxide as the main component; (ii) a step for melting and solidifying or for sintering the powder by irradiating the powder layer with an energy beam on the basis of shaping data; (iii) a step for causing a liquid that contains a zirconium component to be absorbed by a molded article having a porous part and being formed by repeating steps (i) and (ii); and (iv) a step for heating the molded article that has absorbed the liquid containing the zirconium component, wherein in the absorption step, the liquid is absorbed such that the proportion of the zirconium component among metal components contained in the porous part becomes 0.3-2.0 mol%.

Inventors:
OHASHI YOSHIHIRO (JP)
YASUI NOBUHIRO (JP)
SAITO HIROSHI (JP)
OSHIMA KANAKO (JP)
Application Number:
PCT/JP2019/047646
Publication Date:
June 11, 2020
Filing Date:
December 05, 2019
Export Citation:
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Assignee:
CANON KK (JP)
International Classes:
B28B1/30; B28B11/04; B33Y10/00; B33Y80/00; C04B35/119; C04B38/00
Foreign References:
JP2002316866A2002-10-31
JP2017529297A2017-10-05
JP2018031050A2018-03-01
JP3213127U2017-10-19
Other References:
SHAHZAD, KHURAM ET AL.: "Additive manufacturing of zirconia parts by indirect selective laser sintering", JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, vol. 34, no. 1, 2013, pages 81 - 89, XP055713969
WU, H. ET AL.: "Fabrication of high-performance Al2O3-ZrO2 composite by a novel approach that integrates stereolithography-based 3D printing and liquid precursor infiltration", MATERIALS CHEMISTRY AND PHYSICS, vol. 209, 17 January 2018 (2018-01-17), pages 31 - 37, XP055713972
YVES-CHRISTIAN, HAGECLORN ET AL.: "Net Shaped High Performance Oxicle Ceramic Parts by Selective Laser Melting", PHYSICS PROCECLIA, vol. 5, 2010, pages 587 - 594, XP055389896
Attorney, Agent or Firm:
OKABE Yuzuru et al. (JP)
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