High-speed Synthesis and Electric Properties of Calcium Doped Lead Titanate Ceramics

Author

Qiang, Liang S. ; Mu, Han ; Fu, Hong G.

Author_Institution

Dept. of Appl. Chem., Harbin Inst. of Technol.

fYear

2006

fDate

18-21 Jan. 2006

Firstpage

1121

Lastpage

1124

Abstract

In this research, by adding methyl alcohol/water solution with certain concentration into sol to hydrolysis directly and sintering the fresh gel directly, lead titanate ceramics doped with calcium are prepared by using calcium acetate as doper to prohibit the disadvantages contained in conventional sol-gel method, such as low hydrolytic rate, high sintering temperature, long preparation period. The changes of structure, microstructure, synthesis process and electric properties of modified ceramics are studied in detail. The sizes and morphology of high density calcium doped lead titanate nanocrystals thus obtained are observed by TEM photographs and the structures and affection of sintering temperature of to lattice constant and sizes of nanocrystals are detected by XRD. Electric properties detection results show that lead titanate ceramics doped with calcium exhibit excellent dielectric, ferroelectric and pyroelectric properties compare with pure lead titanate

Keywords

X-ray diffraction; calcium; ceramics; ferroelectricity; lead compounds; pyroelectricity; sintering; sol-gel processing; transmission electron microscopy; TEM; X-ray diffraction; XRD; calcium acetate; calcium doped lead titanate ceramics; calcium doped lead titanate nanocrystals; ceramic electric properties; ceramic microstructure; ceramic structure; dielectric properties; ferroelectric properties; high speed ceramic synthesis; hydrolysis; lattice constant; methyl alcohol-water solution; nanocrystal size; pyroelectric properties; sintering; sol-gel processing; transmission electron microscopy; Calcium; Ceramics; Lattices; Methanol; Microstructure; Morphology; Nanocrystals; Temperature; Titanium compounds; X-ray scattering; calcium doped lead titanate ceramics(PCT); electric properties; high-speed synthesis; modified sol-gel method;

fLanguage

English

Publisher

ieee

Conference_Titel

Nano/Micro Engineered and Molecular Systems, 2006. NEMS '06. 1st IEEE International Conference on

Conference_Location

Zhuhai

Print_ISBN

1-4244-0139-9

Electronic_ISBN

1-4244-0140-2

Type

conf

DOI

10.1109/NEMS.2006.334645

Filename

4135144