Metastable zirconia phases prepared from zirconium alkoxide and yttrium acetylacetonate: Part 1--Formation and characterization of metastable zirconia solid solutions

Journal Article · Wed Sep 01 00:00:00 EDT 1993 · Materials Research Bulletin; (United States)

DOI:https://doi.org/10.1016/0025-5408(93)90033-A· OSTI ID:6250189

Shimazaki, M; Hirota, K; Yamaguchi, O ^[1]; Fujii, S; Tamamaki, M ^[2]; Inamura, S; Miyamoto, M ^[3]; Kume, S ^[4]

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1. Doshisha Univ., Kyoto (Japan). Faculty of Engineering
2. Japan Abrasive Co., Ltd., Osaka (Japan)
3. Osaka Prefectural Inst. of Industrial Technology (Japan)
4. Ryukoku Univ., Shiga (Japan). Dept. of Materials Chemistry

In the ZrO[sub 2]-Y[sub 2]O[sub 3] system, metastable ZrO[sub 2] solid solutions containing up to [approximately]46 mol% Y[sub 2]O[sub 3] crystallize at low temperatures from amorphous materials prepared by the simultaneous hydrolysis of zirconium isopropoxide and yttrium acetylacetonate: t- and c-ZrO[sub 2] phases below and above 8 mol% Y[sub 2]O[sub 3], respectively. The variation of the lattice parameters of both phases is determined as a function of Y[sub 2]O[sub 3] content. The value of the lattice parameter of pure ZrO[sub 2] (tetragonal) is a = 0.5085 nm and c = 0.5170 nm. Powder characterization has been examined using c-ZrO[sub 2] solid solution powders prepared in the composition of ZrO[sub 2]/Y[sub 2]O[sub 3][equals]80/20 mol%. Crystallite size, particle size and particle morphology are strongly dependent on heating temperature. Surface areas of powders do not drop below 10 m[sup 2]/g until the heating temperature is above 900 C.

• OSTI ID: 6250189
• Journal Information: Materials Research Bulletin; (United States), Vol. 28:9; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
YTTRIUM OXIDES
CHEMICAL PREPARATION
LATTICE PARAMETERS
ZIRCONIUM OXIDES
ACETYLACETONE
ALKOXIDES
HYDROLYSIS
MORPHOLOGY
PARTICLE SIZE
POWDERS
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
CHALCOGENIDES
CHELATING AGENTS
CHEMICAL REACTIONS
DECOMPOSITION
KETONES
LYSIS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REAGENTS
SIZE
SOLVOLYSIS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
400201* - Chemical & Physicochemical Properties
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies