	US 12,391,621 B2
	Sintered body, powder and method for producing the same
Koji Matsui, Yamaguchi (JP); and Kohei Hosoi, Yamaguchi (JP)
Assigned to TOSOH CORPORATION, Yamaguchi (JP)
Appl. No. 17/605,332
Filed by TOSOH CORPORATION, Yamaguchi (JP)
PCT Filed Apr. 6, 2020, PCT No. PCT/JP2020/015468 § 371(c)(1), (2) Date Oct. 21, 2021, PCT Pub. No. WO2020/217942, PCT Pub. Date Oct. 29, 2020.
Claims priority of application No. 2019-084550 (JP), filed on Apr. 25, 2019; application No. 2019-142437 (JP), filed on Aug. 1, 2019; and application No. 2019-211944 (JP), filed on Nov. 25, 2019.
Prior Publication US 2022/0212999 A1, Jul. 7, 2022
Int. Cl. C04B 35/488 (2006.01); C04B 35/64 (2006.01)

CPC C04B 35/4885 (2013.01) [C04B 35/64 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3246 (2013.01); C04B 2235/3287 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/5409 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/549 (2013.01); C04B 2235/762 (2013.01); C04B 2235/765 (2013.01); C04B 2235/96 (2013.01)]

19 Claims

11. A powder comprising a stabilizer and zirconia with a monoclinic fraction of more than 70%, wherein a crystallite size of monoclinic zirconia is more than 23 nm and 80 nm or less,

wherein the zirconia has a crystal phase containing monoclinic zirconia and tetragonal zirconia, and

wherein the powder contains no undissolved stabilizer.