Nanocrystalline BaTiO3 powder via ambient conditions sol process (Prop.2001-071)

Journal Article · Sat Jan 01 00:00:00 EST 2005 · Journal of European Ceramic Society

OSTI ID:1003101

Payzant, E Andrew ^[1]; Wang, X. ^[2]; Hu, Michael Z. ^[1]; Blom, Douglas Allen ^[1]

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1. ORNL
2. Clemson University

Nanocrystalline BaTiO{sub 3} particles have been prepared by ambient condition sol (ACS) process starting from soluble precursors of barium and titanium yielding a mixed oxide/hydroxide gel. The gel was peptized and crystallized in water under a refluxing condition. Higher initial pH and Ba/Ti ratio led to smaller crystallite sizes of BaTiO{sub 3} powders. Organic mineralizer, tetramethylammonium hydroxide (TMAH), can adsorb on the BaTiO{sub 3} nuclei and inhibited further growth of the particles. Adding a polymer during BaTiO{sub 3} synthesis led to a smaller particle size and increased redispersibility of the particles in water.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Temperature Materials Lab. (HTML)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1003101
• Journal Information: Journal of European Ceramic Society, Vol. 10, Issue 1016; ISSN 0955-2219
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM
BARIUM COMPOUNDS
CERAMICS
GELS
GROWTH
HYDROXIDES
NUCLEI
PARTICLE SIZE
PARTICLES
POLYMERS
POWDERS
SOL-GEL PROCESS
SOLS
SYNTHESIS
TITANATES
TITANIUM
WATER