Abstract
BaTiO 3 nano-particles with a size range of 20-70 nm were synthesized at 70 °C through a simple wet-chemical reactions between barium hydroxide octahydrate (Ba(OH) 2 ? 8H 2O) and meta titanic acid (H 2TiO 3) in ethanol/water mixed solvent systems. It was found that the volume ratio of ethanol to deionized water is a key controlling parameter to determine the phase formation and particle size of BaTiO 3. Single-phase cubic perovskite BaTiO 3 started to be formed in solution containing above 40 volume percent of ethanol. From the field emission scanning electron microscopy (FE- SEM) and transmission electron microscopy (TEM) analysis, the as-prepared BaTiO 3 exhibited the aggregated morphologies. The surface properties were characterized by the nitrogen adsorption isotherms curves. The effects of these aggregates on the electrical performance in BaTiO 3/epoxy nano-composites were also examined.
Original language | English |
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Pages (from-to) | 1361-1366 |
Number of pages | 6 |
Journal | Journal of Nanoscience and Nanotechnology |
Volume | 10 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2010 Feb |
Externally published | Yes |
Keywords
- Aggregates
- BaTiO
- Dielectric properties
- Nano-composite
- Nano-particles
- Synthesis
ASJC Scopus subject areas
- Bioengineering
- Chemistry(all)
- Biomedical Engineering
- Materials Science(all)
- Condensed Matter Physics