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Studies on the activation energy from the ac conductivity measurements of rubber ferrite composites containing manganese zinc ferrite |
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| Authors: | Mohd. Hashim Alimuddin Shalendra Kumar Sagar E. Shirsath E.M. Mohammed Hanshik Chung Ravi Kumar |
| Affiliation: | 1. Department of Applied Physics, Aligarh Muslim University, Aligarh 202002, UP, India;2. Department of Physics, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea;3. Spin Device Technology Center, Faculty of Engineering, Shinshu University, Nagano, Japan;4. Department of Physics, Maharajas College, Ernakulam 682011, Kerala, India;5. Department of Mechanical and Precision Engineering and The Institute of Marine Industry, Gyeongsang National University, Tongyeong 650-160, Republic of Korea;6. Centre for Material Science Engineering, National Institute of Technology, Hamirpur, HP, India |
| Abstract: | Manganese zinc ferrites (MZF) have resistivities between 0.01 and 10 Ω m. Making composite materials of ferrites with either natural rubber or plastics will modify the electrical properties of ferrites. The moldability and flexibility of these composites find wide use in industrial and other scientific applications. Mixed ferrites belonging to the series Mn(1−x)ZnxFe2O4 were synthesized for different ‘x’ values in steps of 0.2, and incorporated in natural rubber matrix (RFC). From the dielectric measurements of the ceramic manganese zinc ferrite and rubber ferrite composites, ac conductivity and activation energy were evaluated. A program was developed with the aid of the LabVIEW package to automate the measurements. The ac conductivity of RFC was then correlated with that of the magnetic filler and matrix by a mixture equation which helps to tailor properties of these composites. |
| Keywords: | Magnetic materials Rubber ferrite composites Activation energy AC conductivity Polymer Electrical properties |
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