Dielectric properties of barium titanate ceramics doped by B{sub 2}O{sub 3} vapor

Journal Article · Wed Dec 01 04:00:00 EST 2004 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.1814167· OSTI ID:20658125

Qi, J Q; Chen, W P; Yu, Wang; Chan, H L.W.; Li, L T ^[1]

---

1. Department of Applied Physics and Materials Research Center, Hong Kong Polytechnic University, Hong Kong (China)

The effects of B{sub 2}O{sub 3} vapor doping on the dielectric properties of barium titanate ceramics were studied. After the doping, the Curie point of BaTiO{sub 3} ceramics was increased from 128 deg. C to 130 deg. C and the maximum dielectric constant was considerably increased. X-ray diffraction showed that both the grain lattice parameters and the tetragonality were increased by the boron oxide vapor doping. It was proposed that boron interstitial was introduced into the grain lattice of barium titanate ceramics by B{sub 2}O{sub 3} vapor doping and the dielectric properties were thus obviously changed.

• OSTI ID: 20658125
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 11 Vol. 96; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM COMPOUNDS
BORON OXIDES
CERAMICS
CURIE POINT
DIELECTRIC MATERIALS
DOPED MATERIALS
INTERSTITIALS
LATTICE PARAMETERS
PERMITTIVITY
TITANATES
VAPORS
X-RAY DIFFRACTION