Preparation of monodisperse and spherical zirconia powders by heating of alcohol-aqueous salt solutions

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · Journal of the American Ceramic Society

DOI:https://doi.org/10.1111/j.1151-2916.1995.tb08042.x· OSTI ID:131535

Moon, Y T; Park, H K; Kim, D K; Kim, C H ^[1]; Seog, I S ^[2]

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1. Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of). Dept. of Materials Science and Engineering
2. Keum Kang Central Inst., Kyunggi-do (Korea, Republic of). New Materials Research Lab.

A novel method is demonstrated which yields a spherical ZrO{sub 2} powder of narrow size distribution through heating of a zirconyl chloride solution with an alcohol-water mixture as the solvent. The kind and composition of the solvent mixture greatly influenced the behavior of the precipitation and the morphology of the resulting particles. When 1-propanol or 2-propanol was employed as the alcohol of the solvent mixture, the resulting particles had a spherical shape and a narrow size distribution. The particle size and the particle agglomeration level could be controlled by the amount of hydroxypropyl cellulose (HPC) in the solution. As-prepared amorphous powder was crystallized to a mixture of metastable tetragonal phase and monoclinic phase at about 460 C. The metastable tetragonal phase was converted to the monoclinic phase as the calcination temperature was increased. After calcination, the spherical shape of the zirconia powder was retained, while its particle size was decreased slightly.

• Sponsoring Organization: USDOE
• OSTI ID: 131535
• Journal Information: Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 10 Vol. 78; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AMORPHOUS STATE
AQUEOUS SOLUTIONS
CALCINATION
CHEMICAL PREPARATION
CHLORIDES
CRYSTALLIZATION
MONOCLINIC LATTICES
MORPHOLOGY
PARTICLE SIZE
POWDERS
PRECIPITATION
SPHERES
ZIRCONIUM OXIDES