Title:
ジルコニア粉末、ジルコニア粉末の製造方法、ジルコニア焼結体の製造方法、及び、ジルコニア焼結体
Document Type and Number:
Japanese Patent JP7110484
Kind Code:
B2
Abstract:
This zirconia powder contains 2.5 to 3.5 mol% of yttria; has a specific surface area of 5 to 20 m2/g; and has crystal phases that include a monoclinic crystal phase percentage of 20 to 40% and a tetragonal crystal phase percentage of 60 to 80%. When the zirconia powder is molded under a mold pressure of 0.8 t/cm2 and then sintered under a condition of 2 hours at 1450°C to obtain a sintered body, the sintered body has crystal phases that include a monoclinic crystal phase percentage of 1 to 3%, a tetragonal crystal phase percentage of 77 to 94%, and a cubic crystal phase percentage of 5 to 20%.
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Inventors:
Taiichi Kunisada
Application Number:
JP2021509525A
Publication Date:
August 01, 2022
Filing Date:
March 25, 2020
Export Citation:
Assignee:
Daiichi Rare Element Chemical Industry Co., Ltd.
International Classes:
C04B35/486; C01G25/00; C04B35/488
Domestic Patent References:
| JP2003212546A | ||||
| JP2004075425A | ||||
| JP59182270A | ||||
| JP2018172263A |
Foreign References:
| WO2017170565A1 |
Attorney, Agent or Firm:
Patent Business Corporation Unias International Patent Office
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