Synthesis of piezoelectric PbTiO3 fibres

Nishi, Tetsuya; Igarashi, Kaoru; Shimizu, Tadao; Koumoto, Kunihito; Yanagida, Hiroaki

doi:10.1007/bf01730144

Cited by 7 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Shimizu et al have found that fibrous BaTiO 3 particles can be obtained by hydrothermally treating a fibrous layered hydrous potassium titanate (2K 2 O·11TiO 2 ·3H 2 O) in a Ba(OH) 2 solution. The fibrous BaTiO 3 particles show a high degree of crystal-axis orientation and special dielectric properties. , Fibrous particles of PbTiO 3 perovskite can be prepared also by hydrothermal treatment of the fibrous layered hydrous potassium titanate with Pb 2 O(OH) 2 in an alkaline solution. , …”

Section: Introductionmentioning

confidence: 99%

Synthesis of Crystal-Axis-Oriented BaTiO₃ and Anatase Platelike Particles by a Hydrothermal Soft Chemical Process

2001

View full text Add to dashboard Cite

BaTiO3 and anatase with platelike particle morphology were prepared by using a hydrothermal soft chemical process. A layered titanate of K0.8Ti1.73Li0.27O4 with a lepidocrocite-like layered structure, which has a platelike particle morphology, was used as a precursor. In the first step, the layered titanate was treated with an acid solution to obtain an H+-form layered titanate H1.07Ti1.73O4·nH2O with a lepidocrocite-like layered structure. In the second step, the H+-form layered titanate was treated in a Ba(OH)2 solution or distilled water under mild hydrothermal conditions to transform the layered titanate to BaTiO3 or anatase. The transformation reactions were investigated by XRD and SEM analyses. There are two simultaneous mechanisms in the formation of BaTiO3 under the hydrothermal conditions. One is an in situ topotactic transformation reaction in the crystal bulk of the layered titanate, and another is a dissolution−deposition reaction on the surface of the particles. In the formation of BaTiO3, the in situ topotactic transformation reaction is predominant in the solution of low Ba(OH)2 concentration, while, in the formation of anatase, most of the reaction progressed by the in situ topotactic transformation mechanism. The platelike particles of BaTiO3 and anatase, which were prepared by this method, showed a high degree of crystal-axis orientation.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis of Crystal-Axis-Oriented BaTiO₃ and Anatase Platelike Particles by a Hydrothermal Soft Chemical Process

2001

View full text Add to dashboard Cite

show abstract

“…For morphology control, fibrous BaTiO 3 and PbTiO 3 have been prepared by hydrothermal treatment of a fibrous layered hydrous potassium titanate (2K 2 O·11TiO 2 ·3H 2 O) with Ba(OH) 2 and Pb 2 O(OH), respectively 27–31 . The fibrous BaTiO 3 and PbTiO 3 particles show high‐degree crystal‐axis orientation and anisotropic dielectric properties.…”

Section: Introductionmentioning

confidence: 99%

“…For morphology control, fibrous BaTiO 3 and PbTiO 3 have been prepared by hydrothermal treatment of a fibrous layered hydrous potassium titanate (2K 2 O Á 11TiO 2 Á 3H 2 O) with Ba(OH) 2 and Pb 2 O(OH), respectively. [27][28][29][30][31] The fibrous BaTiO 3 and PbTiO 3 particles show high-degree crystal-axis orientation and anisotropic dielectric properties. Our previous study has indicated that a fibrous H 1 -form tetratitanate of H 2 Ti 4 O 9 with a layered structure showed higher reactivity than the fibrous hydrous potassium titanate for the hydrothermal soft chemical synthesis.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Soft Chemical Synthesis and Particle Morphology Control of BaTiO₃in Surfactant Solutions

Feng

Hirasawa

Kajiyoshi

et al. 2005

Journal of the American Ceramic Society

View full text Add to dashboard Cite

Barium titanate (BaTiO3) particles with book‐like and spherical morphology were prepared by using a hydrothermal soft chemical process in the presence of a cationic surfactant. A layered titanate of H1.07Ti1.73O4 with a lepidocrocite‐like structure and plate‐like particle morphology was used as the precursor. The layered titanate was hydrothermally treated in a Ba(OH)2–(HTMA‐OH) (n‐hexadecyltrimethylammonium hydroxide) solution or a Ba(OH)2–(HTMA‐Br) (n‐hexadecyltrimethylammonium bromide) solution in a temperature range of 80°–250°C to prepare BaTiO3. The intercalation reaction of HTMA+ with the layered titanate promotes the structural transformation reaction from the layered titanates to BaTiO3, while it inhibits the structural transformation reaction to anatase under the hydrothermal conditions. The particle morphology of BaTiO3 prepared by this method dramatically changes with changing reaction conditions. HTMA+ plays an important role in changing particle morphology in the hydrothermal soft chemical process.

show abstract

Study on the growth of potassium titanate nanostructures prepared by sol-gel–calcination process

et al. 2007

View full text Add to dashboard Cite

Synthesis of piezoelectric PbTiO3 fibres

Cited by 7 publications

References 6 publications

Synthesis of Crystal-Axis-Oriented BaTiO₃ and Anatase Platelike Particles by a Hydrothermal Soft Chemical Process

Synthesis of Crystal-Axis-Oriented BaTiO₃ and Anatase Platelike Particles by a Hydrothermal Soft Chemical Process

Hydrothermal Soft Chemical Synthesis and Particle Morphology Control of BaTiO₃in Surfactant Solutions

Study on the growth of potassium titanate nanostructures prepared by sol-gel–calcination process

Contact Info

Product

Resources

About

Synthesis of piezoelectric PbTiO3 fibres

Cited by 7 publications

References 6 publications

Synthesis of Crystal-Axis-Oriented BaTiO3 and Anatase Platelike Particles by a Hydrothermal Soft Chemical Process

Synthesis of Crystal-Axis-Oriented BaTiO3 and Anatase Platelike Particles by a Hydrothermal Soft Chemical Process

Hydrothermal Soft Chemical Synthesis and Particle Morphology Control of BaTiO3in Surfactant Solutions

Study on the growth of potassium titanate nanostructures prepared by sol-gel–calcination process

Contact Info

Product

Resources

About

Synthesis of Crystal-Axis-Oriented BaTiO₃ and Anatase Platelike Particles by a Hydrothermal Soft Chemical Process

Synthesis of Crystal-Axis-Oriented BaTiO₃ and Anatase Platelike Particles by a Hydrothermal Soft Chemical Process

Hydrothermal Soft Chemical Synthesis and Particle Morphology Control of BaTiO₃in Surfactant Solutions