Material Characterization and Microwave Substrate Applications of Alumina‐Filled Butyl Rubber Composites | Zendy

Chameswary Janardhanan | Zendy; Namitha Lathikumari Krishnankutty | Zendy; Brahmakumar Methalayil | Zendy; Sebastian Mailadil Thomas | Zendy

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Material Characterization and Microwave Substrate Applications of Alumina‐Filled Butyl Rubber Composites

Author(s) -

Chameswary Janardhanan,

Namitha Lathikumari Krishnankutty,

Brahmakumar Methalayil,

Sebastian Mailadil Thomas

Publication year - 2013

Publication title -

international journal of applied ceramic technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.4

H-Index - 57

eISSN - 1744-7402

pISSN - 1546-542X

DOI - 10.1111/ijac.12067

Subject(s) - materials science , composite material , dissipation factor , composite number , volume fraction , natural rubber , dielectric , ceramic , permittivity , microwave , relative permittivity , physics , optoelectronics , quantum mechanics

Composites of butyl rubber with micron alumina ( BRAL ) and nanoalumina ( BR n AL ) have been prepared by sigma mixing. The stress‐strain curves of both BRAL and BR n AL composites show the mechanical flexibility of the composites. The dielectric and thermal properties of both composites were studied as a function of ceramic loading. For 0.1 volume fraction of micron alumina loading, the composites have attained a relative permittivity ( ε r ) of 2.82 and loss tangent (tanδ) of 0.0023 at 5 GH z, and for the same volume fraction of nanoalumina content, the composite showed ε r of 3.15 and tanδ of 0.014 at 5 GH z.

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