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Barium Titanate Ceramic/Ceramic 0–3 Composites for Ultrasonic Transducer Applications

Published online by Cambridge University Press:  10 February 2011

M. C. Cheung ,
H. L. W. Chan ,
Q. F. Zhou  and
C. L. Choy
M. C. Cheung
Affiliation:
Department of Applied Physics and Materials Research Centre, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong, China.
H. L. W. Chan
Affiliation:
Department of Applied Physics and Materials Research Centre, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong, China.
Q. F. Zhou
Affiliation:
Department of Applied Physics and Materials Research Centre, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong, China.
C. L. Choy
Affiliation:
Department of Applied Physics and Materials Research Centre, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong, China.
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Abstract

Barium titanate (BaTiO3) 0–3 ceramic/ceramic composite thick films (∼16μm) for ultrasonic transducer applications were fabricated by a modified sol-gel process. Nano-sized BaTiO3 powder was dispersed in a sol-gel matrix of BaTiO3 to form a 0–3 composite solution. Films were prepared by spin coating and then annealed at various temperatures. The crystallization of the composite film was studied by X-ray diffraction. The dielectric permittivity and the ferroelectric properties of the film were also measured.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 574: Symposia BB – Multicomponent Oxide Films for Electronics , 1999 , 347
Copyright
Copyright © Materials Research Society 1999

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References

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