Determination of Complex Permittivity of Fly Ash for Potential Electronic Applications

Abstract:

Disposal of fly ash obtained from thermal power plants is a major environmental concern. Fly ash contains large proportions of silica and ferrites. Investigation of its prospects as an electronic material provides scope for enhanced fly ash utilization. This involves measurement of relative permittivity and loss tangent. Experiments are carried out at X band frequencies in TE₁₀ mode using standard klystron waveguide setup. Shorted Waveguide Method is used to determine the complex permittivity. The complex transcendental equation obtained is solved using Genetic Algorithm. Experimental results are compared with theoretical estimates based on Landau Lifshitz Looyenga (LLL) equation.

• Periodical: Applied Mechanics and Materials (Volumes 110-116)
• Pages: 4292-4296
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.110-116.4292
• Online since: October 2011
• Authors: V. Naren Sreenivas, D. Karthik, V. Aravinth Kumar, V.D. Sidharth, T. Meenatchi Sundaram, Soumitro Sarkar, Narayanan B. Sabarish
• Keywords: Complex Permittivity, Fly Ash (FA), Landau Lifshitz Looyenga (LLL) Equation, Shorted Waveguide Technique

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