DIELECTRIC INVESTIGATION OF BARIUM TITANATE WITH 0.5% ANTIMONY
Апстракт
Barium titanate (BaTiO:) is versatile electroceramic that exhibits high permittivity
(e') making it desirable material for capacitor and others widespread applications. On
heating, it undergoes a ferroelectric/paraelectric phase transition to the cubic polymorph at
a Curie temperature Tc of 130C, at which e' passes through a maximum e'max and
typically reaches values of -10000 in undoped ceramic samples. The phase transition is
first order, and the peak in e' is correspondingly sharp [1].
For many years dopants have been used to modify the electrical properties of
BaTiO3-based ceramics. For example, isovalent dopants are commonly used to alter Z. and
the lower temperature orlhorhombic-hetragonal and rhombohedral/orthorhombic phase
transition temperatures. In this way, the temperature of e 'max may pe modified and in some
cases lead to diffuse phase transition-type behaviour.
We prepared 0.5% Sb-dopped BaTiO3 sample. In the present study, the real (e ) and
imaginary (e ") pa...rt and of dielectric permiittivity were investigated in the frequency range
of 20 Hz to 1.0 MHz at temperature range of 1 20 K to 460 K.
How we see, the temperature dependence of the dielectric permittivity is not typical
for,barium titanate. But from Cole-Cole fit parameter relaxation time we see three phase
transitions approximately ar T=207 K, 298 K and 273 K.
In this study also will be presented barium titanate Sb-dopped with different concentration:
O.1% and 0.3%.
Кључне речи:
Barium titanate / orlhorhombic-hetragonal / dielectric permittivity / isovalent dopantsИзвор:
6th Workshop COST 539, 23-25. February 2009, Madrid, Spain, Programme and book of abstracts, p 64-65, 2009Издавач:
- 6th Workshop COST 539, 23-25. February 2009, Madrid, Spain, Programme and book of abstracts, p 64-65
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Ramoška, Tadas AU - Banys, Juras AU - Vijatović Petrović, Mirjana AU - Stojanović, Biljana PY - 2009 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2723 AB - Barium titanate (BaTiO:) is versatile electroceramic that exhibits high permittivity (e') making it desirable material for capacitor and others widespread applications. On heating, it undergoes a ferroelectric/paraelectric phase transition to the cubic polymorph at a Curie temperature Tc of 130C, at which e' passes through a maximum e'max and typically reaches values of -10000 in undoped ceramic samples. The phase transition is first order, and the peak in e' is correspondingly sharp [1]. For many years dopants have been used to modify the electrical properties of BaTiO3-based ceramics. For example, isovalent dopants are commonly used to alter Z. and the lower temperature orlhorhombic-hetragonal and rhombohedral/orthorhombic phase transition temperatures. In this way, the temperature of e 'max may pe modified and in some cases lead to diffuse phase transition-type behaviour. We prepared 0.5% Sb-dopped BaTiO3 sample. In the present study, the real (e ) and imaginary (e ") part and of dielectric permiittivity were investigated in the frequency range of 20 Hz to 1.0 MHz at temperature range of 1 20 K to 460 K. How we see, the temperature dependence of the dielectric permittivity is not typical for,barium titanate. But from Cole-Cole fit parameter relaxation time we see three phase transitions approximately ar T=207 K, 298 K and 273 K. In this study also will be presented barium titanate Sb-dopped with different concentration: O.1% and 0.3%. PB - 6th Workshop COST 539, 23-25. February 2009, Madrid, Spain, Programme and book of abstracts, p 64-65 C3 - 6th Workshop COST 539, 23-25. February 2009, Madrid, Spain, Programme and book of abstracts, p 64-65 T1 - DIELECTRIC INVESTIGATION OF BARIUM TITANATE WITH 0.5% ANTIMONY UR - https://hdl.handle.net/21.15107/rcub_rimsi_2723 ER -
@conference{ author = "Ramoška, Tadas and Banys, Juras and Vijatović Petrović, Mirjana and Stojanović, Biljana", year = "2009", abstract = "Barium titanate (BaTiO:) is versatile electroceramic that exhibits high permittivity (e') making it desirable material for capacitor and others widespread applications. On heating, it undergoes a ferroelectric/paraelectric phase transition to the cubic polymorph at a Curie temperature Tc of 130C, at which e' passes through a maximum e'max and typically reaches values of -10000 in undoped ceramic samples. The phase transition is first order, and the peak in e' is correspondingly sharp [1]. For many years dopants have been used to modify the electrical properties of BaTiO3-based ceramics. For example, isovalent dopants are commonly used to alter Z. and the lower temperature orlhorhombic-hetragonal and rhombohedral/orthorhombic phase transition temperatures. In this way, the temperature of e 'max may pe modified and in some cases lead to diffuse phase transition-type behaviour. We prepared 0.5% Sb-dopped BaTiO3 sample. In the present study, the real (e ) and imaginary (e ") part and of dielectric permiittivity were investigated in the frequency range of 20 Hz to 1.0 MHz at temperature range of 1 20 K to 460 K. How we see, the temperature dependence of the dielectric permittivity is not typical for,barium titanate. But from Cole-Cole fit parameter relaxation time we see three phase transitions approximately ar T=207 K, 298 K and 273 K. In this study also will be presented barium titanate Sb-dopped with different concentration: O.1% and 0.3%.", publisher = "6th Workshop COST 539, 23-25. February 2009, Madrid, Spain, Programme and book of abstracts, p 64-65", journal = "6th Workshop COST 539, 23-25. February 2009, Madrid, Spain, Programme and book of abstracts, p 64-65", title = "DIELECTRIC INVESTIGATION OF BARIUM TITANATE WITH 0.5% ANTIMONY", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2723" }
Ramoška, T., Banys, J., Vijatović Petrović, M.,& Stojanović, B.. (2009). DIELECTRIC INVESTIGATION OF BARIUM TITANATE WITH 0.5% ANTIMONY. in 6th Workshop COST 539, 23-25. February 2009, Madrid, Spain, Programme and book of abstracts, p 64-65 6th Workshop COST 539, 23-25. February 2009, Madrid, Spain, Programme and book of abstracts, p 64-65.. https://hdl.handle.net/21.15107/rcub_rimsi_2723
Ramoška T, Banys J, Vijatović Petrović M, Stojanović B. DIELECTRIC INVESTIGATION OF BARIUM TITANATE WITH 0.5% ANTIMONY. in 6th Workshop COST 539, 23-25. February 2009, Madrid, Spain, Programme and book of abstracts, p 64-65. 2009;. https://hdl.handle.net/21.15107/rcub_rimsi_2723 .
Ramoška, Tadas, Banys, Juras, Vijatović Petrović, Mirjana, Stojanović, Biljana, "DIELECTRIC INVESTIGATION OF BARIUM TITANATE WITH 0.5% ANTIMONY" in 6th Workshop COST 539, 23-25. February 2009, Madrid, Spain, Programme and book of abstracts, p 64-65 (2009), https://hdl.handle.net/21.15107/rcub_rimsi_2723 .