Title :
Detection of dilute inclusion concentration in polymer metal composite using microwaves
Author :
Ramachandran, R. ; Arunachalam, Kavitha
Author_Institution :
Dept. of Eng. Design, Indian Inst. of Technol. Madras, Chennai, India
Abstract :
A measurement technique to estimate dilute concentrations (1-5%) of metal inclusion in an inert dielectric is presented. Bulk permittivity of polymer metal composites with aluminium powder (1-5%) in epoxy indicated very small variation for the dilute mixtures. Reflection measurements from composites with small variation in bulk permittivity, Δε≈1 indicated an appreciable change in phase. Experimental results demonstrate the feasibility to detect the change in inclusion concentration of dilute mixtures using microwave measurements.
Keywords :
aluminium; chemical variables measurement; dilute magnetic materials; filled polymers; inclusions; microwave measurement; mixtures; optical variables measurement; permittivity measurement; aluminium powder; bulk permittivity; dilute metal inclusion concentration detection; dilute mixture; epoxy; inert dielectric; microwave measurement technique; polymer metal composite; reflection measurement; Dielectrics; Frequency measurement; Materials; Metals; Permittivity; Permittivity measurement; Metal inclusion; effective medium; mixing rule; permittivity; phase measurement; volume concentration;
Conference_Titel :
Microwave and RF Conference, 2013 IEEE MTT-S International
Conference_Location :
New Delhi
DOI :
10.1109/IMaRC.2013.6777746
