Title:
CERAMIC SPHERICAL BODIES AND PRODUCTION METHOD FOR CERAMIC SPHERICAL BODIES
Document Type and Number:
WIPO Patent Application WO/2024/070689
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing ceramic spherical bodies that are not readily damaged when pulverization and dispersion are performed under high-temperature conditions of a liquid temperature of 60°C or higher. The present invention is ceramic spherical bodies that include zirconia as a principal component. The ceramic spherical bodies contain 3.5–8.0 mol% of CaO, have an average particle diameter of 0.01–0.3 mm, have a relative density of at least 99%, and have a monoclinic crystal fraction of no more than 1 vol% as measured by powder x-ray diffraction.
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Inventors:
SAWAGOSHI TATSUYA (JP)
TAKASE KOHEI (JP)
KAMII YASUHIRO (JP)
TAKASE KOHEI (JP)
KAMII YASUHIRO (JP)
Application Number:
PCT/JP2023/033356
Publication Date:
April 04, 2024
Filing Date:
September 13, 2023
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C01G25/02; B02C17/20; C04B35/486
Domestic Patent References:
| WO2022044983A1 | 2022-03-03 | |||
| WO2022075346A1 | 2022-04-14 |
Foreign References:
| JPH06306352A | 1994-11-01 | |||
| JP2021155328A | 2021-10-07 |
Other References:
VYACHESLAV V. RODAEV: "Spherical engineering Ca-TZP ceramics made from baddeleyite: fabrication, structure and mechanical properties", MATERIALS SCIENCE, ELSEVIER, AMSTERDAM, NL, vol. 730, 1 July 2018 (2018-07-01), AMSTERDAM, NL, pages 363 - 366, XP093157348, ISSN: 0921-5093, DOI: 10.1016/j.msea.2018.06.029
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