Title:
CERIUM-OXIDE-STABILIZED ZIRCONIUM-OXIDE-BASED COMPOSITION, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2018/062452
Kind Code:
A1
Abstract:
Provided are a cerium-oxide-stabilized zirconium-oxide-based composition with which it is possible to form a material endowed with both exceptional electrical conductivity and mechanical properties, and a method for producing the same. The cerium-oxide-stabilized zirconium-oxide-based composition according to the present invention contains a compound represented by general formula (1) (ZrO2)1-x-a(CeO2)x(M2O3)a and alumina. In formula (1), the value of x is 0.05 ≤ x ≤ 0.12, the value of a is 0.01 ≤ a ≤ 0.03, M is at least one type of rare earth element other than cerium, and the alumina content is 1 mol% or less relative to the aforementioned compound.
Inventors:
SHIRATORI YUSUKE (JP)
TAMAZAKI FUMINORI (JP)
YAMAMOTO TAKUYA (JP)
TAMAZAKI FUMINORI (JP)
YAMAMOTO TAKUYA (JP)
Application Number:
PCT/JP2017/035374
Publication Date:
April 05, 2018
Filing Date:
September 29, 2017
Export Citation:
Assignee:
UNIV KYUSHU NAT UNIV CORP (JP)
DAIICHI KIGENSO KAGAKU KOGYO (JP)
DAIICHI KIGENSO KAGAKU KOGYO (JP)
International Classes:
C04B35/488; C01G25/00
Foreign References:
| JP2011079723A | 2011-04-21 | |||
| JP2013008684A | 2013-01-10 | |||
| JP2009104990A | 2009-05-14 | |||
| JP2000340240A | 2000-12-08 | |||
| JP2004087490A | 2004-03-18 | |||
| JP2000327416A | 2000-11-28 | |||
| JP2006104023A | 2006-04-20 | |||
| JP2011079723A | 2011-04-21 |
Other References:
LIU, MAN ET AL.: "Investigation of (Ce02) x (SC203) (0.11-x) (Zr02) 0.89 (x=0. 01-0 .10) electrolyte materials for intermediate-temperature solid oxide fuel cell", JOURNAL OF ALLOYS AND COMPOUNDS, vol. 502, 28 December 2009 (2009-12-28), pages 319 - 323, XP027129903
JYUNG-DONG LIN ET AL.: "Mechanical properties and resistance to hydrothermal aging of ceria-and yttria-doped tetragonal zirconia ceramics", MATERIALS CHEMISTRY AND PHYSICS, vol. 77, 2002, pages 808 - 818, XP055595920, ISSN: 0254-0584, DOI: 10.1016/S0254-0584(02)00161-X
See also references of EP 3521263A4
JYUNG-DONG LIN ET AL.: "Mechanical properties and resistance to hydrothermal aging of ceria-and yttria-doped tetragonal zirconia ceramics", MATERIALS CHEMISTRY AND PHYSICS, vol. 77, 2002, pages 808 - 818, XP055595920, ISSN: 0254-0584, DOI: 10.1016/S0254-0584(02)00161-X
See also references of EP 3521263A4
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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