In-situ observation of the domain configurations during the phase transitions in barium titanate

Maureel N. Mulvihill, Kenji Uchino, Zhuang Li, Wenwu Cao

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31 Citations (Scopus)

Abstract

Using a polarizing optical microscope in conjunction with a charged-coupled device camera system, the domain microstructural evolution with respect to temperature in all three phases of BaTiO3 was studied. Along a (001) oriented section the domains in the tetragonal phase form 90° domain patterns in an ‘a—a’ configuration. The transition on heating and cooling between the cubic and tetragonal phases occurred near the same temperature, 125°C. On cooling, the domain structures in the orthorhombic phase appeared as a long continuous lamellar structure, while on heating the domains formed a ‘patchwork’ structure. This transition temperature showed a large thermal hysteresis. The final transition temperature from orthorhombic to rhombohedral was difficult to determine using this technique. The transition on cooling occurred at −134°C based on a colour change and the disappearance of all the domains. During heating, the domains reappeared at −110°C and remained in a patchwork structure throughout the orthorhombic phase.

Original languageEnglish (US)
Pages (from-to)25-36
Number of pages12
JournalPhilosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Volume74
Issue number1
DOIs
StatePublished - Jan 1 1996

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Barium titanate
barium
Phase transitions
Cooling
Heating
Superconducting transition temperature
configurations
Lamellar structures
Microstructural evolution
Hysteresis
cooling
Microscopes
heating
Cameras
Color
transition temperature
Temperature
optical microscopes
hysteresis
cameras

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Physics and Astronomy(all)

Cite this

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abstract = "Using a polarizing optical microscope in conjunction with a charged-coupled device camera system, the domain microstructural evolution with respect to temperature in all three phases of BaTiO3 was studied. Along a (001) oriented section the domains in the tetragonal phase form 90° domain patterns in an ‘a—a’ configuration. The transition on heating and cooling between the cubic and tetragonal phases occurred near the same temperature, 125°C. On cooling, the domain structures in the orthorhombic phase appeared as a long continuous lamellar structure, while on heating the domains formed a ‘patchwork’ structure. This transition temperature showed a large thermal hysteresis. The final transition temperature from orthorhombic to rhombohedral was difficult to determine using this technique. The transition on cooling occurred at −134°C based on a colour change and the disappearance of all the domains. During heating, the domains reappeared at −110°C and remained in a patchwork structure throughout the orthorhombic phase.",
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