Dielectric response of BaZn1/3Ta2/3O3 reinforced polymer composites

Author

Manu, K.M. ; Soni, Sumeet ; Murthy, V.R.K. ; Sebastian, M.T.

Author_Institution

Marerials Div., Nat. Inst. for Interdiscipl. Sci. & Technol., Thiruvananthapuram, India

fYear

2011

fDate

18-22 Dec. 2011

Firstpage

1

Lastpage

5

Abstract

The Perovskite type BaZn_1/3Ta_2/3O₃ (BZT) ceramic filled High density polyethylene (HDPE) composite with different volume fractions (V_f) up to 0.45 were prepared. The effect of filler content on the dielectric properties were studied both at radio and microwave frequencies. As the volume fraction of the filler increased, the relative permittivity (ε_r) of the composite gradually increased. Different theoretical models were used to predict the relative permittivity of the composite at 1 MHz and it was found that Effective Medium Theory (EMT) was in good agreement with the experimental data. The composite with 0.45 V_f of the filler showed ε_r = 8.26 and tanδ =6.5×10^-4 at 5 GHz.

Keywords

barium compounds; ceramics; filled polymers; permittivity; BaZn_0.33Ta_0.67O₃; BaZn_1/3Ta_2/3O₃ reinforced polymer composites; EMT; HDPE; dielectric properties; dielectric response; different theoretical models; effective medium theory; filler content effect; frequency 1 MHz; frequency 5 GHz; high density polyethylene; microwave frequency; perovskite type BaZn_1/3Ta_2/3O₃ ceramic; radiofrequency; relative permittivity; volume fractions; Ceramics; Dielectric losses; Loading; Mathematical model; Permittivity; Polymers; Composite; dielectric loss etc; relative permittivity; substrate;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Electromagnetics Conference (AEMC), 2011 IEEE

Conference_Location

Kolkata

Print_ISBN

978-1-4577-1098-8

Type

conf

DOI

10.1109/AEMC.2011.6256859

Filename

6256859