Structural Transformation of Hexagonal (0001)BaTiO₃ Ceramics to Tetragonal (111)BaTiO₃ Ceramics

スポンサーリンク

概要

• 論文の詳細を見る

• A ceramic slurry that contains a 6H-type Ba(Ti_0.95Mn_0.05)O₃ powder was casted into a plaster mold under 10 T magnetic field to form a green compact of (0001)-oriented Ba(Ti_0.95Mn_0.05)O₃. After sintering the green compact at 1300 °C in air, it was confirmed that the (0001)-oriented 6H-type perovskite structure transformed to a (111)-oriented 3C-type perovskite structure. The structural transformation was again examined using hexagonal BaTiO₃ prepared by reducing pseudo-cubic BaTiO₃ powder in H₂ atmosphere. In this case, the preferred (0001) orientation was not confirmed for the green compacts. After sintering the green compacts at 1300 °C in air, mixed crystal orientations of (100)/(001) and (111) were observed for the resultant tetragonal BaTiO₃ ceramics. This (100)/(001) orientation was suppressed by annealing the hexagonal BaTiO₃ powder at 1000 °C before slip-casting, leading to highly (111)-oriented ceramics. It was found that the green compacts of (0001)-oriented hexagonal BaTiO₃ can transform into (111)-oriented tetragonal BaTiO₃ ceramics, maintaining the macroscopic crystal orientations due to a similar atomic stacking along [0001] of 6H-type BaTiO₃ and [111] of 3C-type BaTiO₃.

• 2011-09-25

著者

• Watanabe Takayuki

  Corporate R&D Headquarters, CANON INC.

• Wada Satoshi

  Interdisciplinary Graduate School of Medical and Engineering, University of Yamanashi

• Kumada Nobuhiro

  Department of Research Interdisciplinary Graduate School of Medicine and Engineering

• Oka Kengo

  Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan

• Miura Kaoru

  Corporate R&D Headquarters, Canon Inc., Ota, Tokyo 146-8501, Japan

• Azuma Masaki

  Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan

• Yabuta Hisato

  Corporate R&D Headquarters, CANON Inc., Ota, Tokyo 146-8501, Japan

• Shimada Mikio

  Corporate R&D Headquarters, CANON Inc., Ota, Tokyo 146-8501, Japan

• Aiba Toshiaki

  Corporate R&D Headquarters, CANON Inc., Ota, Tokyo 146-8501, Japan

• Shimada Mikio

  Corporate R&D Headquarters, CANON Inc., Ota, Tokyo 146-8501, Japan

• Aiba Toshiaki

  Corporate R&D Headquarters, CANON Inc., Ota, Tokyo 146-8501, Japan

• Miura Kaoru

  Corporate R&D Headquarters, Canon Inc., Ota, Tokyo 146-8501, Japan

• Miura Kaoru

  Corporate R&D Headquarters, Canon Inc., 3-30-2 Shimomaruko, Ohta, Tokyo 146-8501, Japan

• WATANABE Takayuki

  Corporate R&D Headquarters, CANON INC.

• Wada Satoshi

  Interdisciplinary Graduate School of Material Science and Technology, University of Yamanashi, 4-3-11 Takeda, Kofu 400-8511, Japan

関連論文

• Preparation and characterization of hollow magnetite spheres via a template-free route
• Low temperature synthesis of tetragonal BaTiO3 by using molten salt
• Piezoelectric anomalies at the ferroelastic phase transitions of lead-free tungsten bronze ferroelectrics
• Preparation of barium titanate-bismuth magnesium titanate ceramics with high Curie temperature and their piezoelectric properties
• Preparation of cordierite from fibrous sepiolite
• An Inorganic-Organic Hybrid Possessing a Two-dimensional Ti-O Network and Surface Ethoxy Groups Prepared via a Reaction of Titanium Oxychloride with Lithium Ethoxide
• Preparation and crystal structure of [enH2]0.5[Ho(HPO4)(SO4)(H2O)] (en; ethylenediamine)
• Hydrothermal synthesis of Fe_3O_4 particles with various shapes
• Crystal structure of pseudobrookite-type Mg_5Nb_4O_ from 293 to 1117K
• Synthesis of hematite particles with various shapes by a simple hydrothermal reaction(Aqueous Solution Science for Ceramic Processing II)
• Hydrothermal synthesis of a new perovskite-type bismuth oxide : Ba_Bi_O_(OH)_
• Hydrothermal conversion of chrysotile to amorphous silica or brucite
• Preparation of Na_Bi_TiO_3 by hydrothermal reaction
• Hydrothermal synthesis of perovskite-type BiFeO_3
• Adsorption of Cl^- Ion with Pyrolysis Products of Yttrium Oxynitrate Hydrate, Y_2(OH)_(NO_3)_x・nH_2O
• Enhanced Piezoelectric Constant of ($1-x$)BiFeO3--$x$BiCoO3 Thin Films Grown on LaAlO3 Substrate
• Electronic, Structural, and Piezoelectric Properties of BiFe1-xCoxO3
• Anisotropic Polarization Switching in Tungsten Bronze Ferroelectrics in Binary (Bi1/2Na1/2)Nb2O6–BaNb2O6 System
• First-Principles Study of Structural Trend of Bi$M$O3 and Ba$M$O3: Relationship between Tetragonal or Rhombohedral Structure and the Tolerance Factors
• Synthesis of LiCoO2 via a facile hydrothermal-assisted route
• Preparation and crystal structure of two types of zirconium phosphates by hydrothermal reaction
• Synthesis of hematite particles with various shapes by a simple hydrothermal reaction
• Structural, Dielectric, and Piezoelectric Properties of Mn-Doped BaTiO3--Bi(Mg1/2Ti1/2)O3--BiFeO3 Ceramics
• Structural Transformation of Hexagonal (0001)BaTiO3 Ceramics to Tetragonal (111)BaTiO3 Ceramics
• Sequential Phase Transitions in Sm Substituted BiFeO3
• Preparation of Barium Titanate--Potassium Niobate Nanostructured Ceramics with Artificial Morphotropic Phase Boundary Structure By Solvothermal Method
• Thermal Reliability of Alkaline Niobate-Based Lead-Free Piezoelectric Ceramics
• Preparation of Barium Titanate–Potassium Niobate Solid Solution System Ceramics and Their Piezoelectric Properties
• Hydrothermal synthesis of NaNbO3—morphology change by starting compounds—
• Electronic and Structural Properties of BiZn0.5Ti0.5O3
• Domain Observation for BaTiO3 Ceramics by a Combination of Chemical Etching and Electron Backscattered Diffraction
• Crystal Structure of BaTiO3--KNbO3 Nanocomposite Ceramics: Relationship between Dielectric Property and Structure of Heteroepitaxial Interface
• Nanostructure Control of Barium Titanate--Potassium Niobate Nanocomplex Ceramics and Their Enhanced Ferroelectric Properties
• Microstructure of BaTiO3--Bi(Mg1/2Ti1/2)O3--BiFeO3 Piezoelectric Ceramics
• Film Thickness Dependence of Ferroelectric Properties of (111)-Oriented Epitaxial Bi(Mg1/2Ti1/2)O3 Films
• Noise Reduction of Microwave Dielectric Map using Fourier Analysis Refinement
• Preparation of Highly Dispersed Barium Titanate Nanoparticles from Barium Titanyl Oxalate Nanoparticles and Their Dielectric Properties
• Structural, dielectric, and piezoelectric properties of BaTiO3-Bi(Ni1/2Ti1/2)O3 ceramics
• Hydrothermal Synthesis of a New Double Perovskite-Type Bismuthate, (Ba0.75K0.14H0.11)BiO3$\cdot$$n$H2O
• Cu NQR and NMR Studies of Optimally Doped Ca
• Growth of (111) One-Axis-Oriented Bi(Mg

もっと見る 閉じる

スポンサーリンク