Sintering and characterization of yttria-stabilized cubic zirconia with alumina derived from solid solution

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Materials Research Bulletin; (United States)

DOI:https://doi.org/10.1016/0025-5408(94)90117-1· OSTI ID:7037470

Fukuya, Michikazu; Hirota, K; Yamaguchi, Osamu ^[1]; Kume, Hideki; Inamura, Suguru; Miyamoto, Hiroki ^[2]; Shiokawa, Nobuaki; Shikata, Ryoichi ^[3]

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1. Doshisha Univ., Kyoto (Japan). Dept. of Applied Chemistry
2. Osaka Prefectural Inst. of Industrial Technology (Japan)
3. Osaka Cement Co., Ltd. (Japan)

In the composition of ZrO[sub 2](8 mol% Y[sub 2]O[sub 3])/Al[sub 2]O[sub 3] = (100--85)/(0--15) mol%, metastable c-ZrO[sub 2] solid solutions crystallize at low temperatures from amorphous materials prepared by the hydrazine method. Powders have been characterized. Crystallite size and specific surface area are strongly dependent on heating temperature. Hot isostatic pressing has been performed for 1 h at 1,600 C under 196 MPa. Yttria-stabilized c-ZrO[sub 2] materials with homogeneous-dispersed Al[sub 2]O[sub 3] derived from the decomposition of solid solutions give >99% of theoretical densities. Materials with small amounts of Al[sub 2]O[sub 3] show good strength and excellent high ionic conductivity at high temperatures.

• OSTI ID: 7037470
• Journal Information: Materials Research Bulletin; (United States), Journal Name: Materials Research Bulletin; (United States) Vol. 29:6; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360200* -- Ceramics
Cermets
& Refractories
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CRYSTAL STRUCTURE
FABRICATION
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SINTERING
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES