EFFECT OF MORPHOLOGY AND NON-BOUNDED INTERFACE ON DIELECTRIC PROPERTIES OF PLASMA SPRAYED BATIO3 COATING

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PAKSERESHT A.H.; RAHIMIPOUR M.R.; VAEZI M.R.; SALEHI M.

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Paper Information

Journal: Journal of Advanced Materials and Processing Year:2014 | Volume:2 | Issue:4 Page(s): 25-32

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Title

EFFECT OF MORPHOLOGY AND NON-BOUNDED INTERFACE ON DIELECTRIC PROPERTIES OF PLASMA SPRAYED BATIO3 COATING

Author(s)

PAKSERESHT A.H. | RAHIMIPOUR M.R. | VAEZI M.R. | SALEHI M. | Issue Writer Certificate

Keywords

PLASMA SPRAY

BATIO3

DIELECTRIC CONSTANT

AMORPHOUS PHASE

NON-BOUNDED INTERFACE

Abstract

In this research, BaTiO3 thick deposit has been successfully sprayed by air PLASMA SPRAY. Microstructure and dielectric properties of the thick films were investigated by scanning electron microscopy (SEM) and LCR meter, respectively. XRD measurement was also carried out on the PLASMA SPRAYed BaTiO3. The results illustrate differences in the crystal structure between the PLASMA SPRAYed coatings and the feedstock powders. The as-deposited films were mainly crystalline with a small amount of an amorphous second phase. The ratio of crystalline-to-amorphous phases was found to be critically dependent on the degree of melting of feed stock powders. The as-deposited BaTiO3 films had maximum DIELECTRIC CONSTANT as high as 85 at room temperature. Upon annealing in air at 1050oC, the DIELECTRIC CONSTANT increased to 165. The increase in DIELECTRIC CONSTANT was attributed to the crystallization of the AMORPHOUS PHASE. The DIELECTRIC CONSTANT of PLASMA SPRAYed BaTiO3 thick films was lower than that of sintering ceramic. Reduction in dielectric properties of deposited films was related to splats interface and lamellar structure of PLASMA SPRAYed coatings.

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APA: Copy

PAKSERESHT, A.H., RAHIMIPOUR, M.R., VAEZI, M.R., & SALEHI, M.. (2014). EFFECT OF MORPHOLOGY AND NON-BOUNDED INTERFACE ON DIELECTRIC PROPERTIES OF PLASMA SPRAYED BATIO₃ COATING. JOURNAL OF ADVANCED MATERIALS AND PROCESSING (JOURNAL OF MATERIALS SCIENCE), 2(4), 25-32. SID. https://sid.ir/paper/652382/en

Vancouver: Copy

PAKSERESHT A.H., RAHIMIPOUR M.R., VAEZI M.R., SALEHI M.. EFFECT OF MORPHOLOGY AND NON-BOUNDED INTERFACE ON DIELECTRIC PROPERTIES OF PLASMA SPRAYED BATIO₃ COATING. JOURNAL OF ADVANCED MATERIALS AND PROCESSING (JOURNAL OF MATERIALS SCIENCE)[Internet]. 2014;2(4):25-32. Available from: https://sid.ir/paper/652382/en

IEEE: Copy

A.H. PAKSERESHT, M.R. RAHIMIPOUR, M.R. VAEZI, and M. SALEHI, “EFFECT OF MORPHOLOGY AND NON-BOUNDED INTERFACE ON DIELECTRIC PROPERTIES OF PLASMA SPRAYED BATIO₃ COATING,” JOURNAL OF ADVANCED MATERIALS AND PROCESSING (JOURNAL OF MATERIALS SCIENCE), vol. 2, no. 4, pp. 25–32, 2014, [Online]. Available: https://sid.ir/paper/652382/en

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