JCBPS; Section C; November 2015 – January 2016, Vol. 6, No. 1; 113-123. E- ISSN: 2249 –1929 Journal of Chemical, Biological and Physical Sciences An International Peer Review E-3 Journal of Sciences Available online atwww.jcbsc.org Section C: Physical Sciences CODEN (USA): JCBPAT Research Article 113 J. Chem. Bio. Phy. Sci. Sec.C, November 2015 – January 2016; Vol.6, No.1;113-123 Structural and Electrical behaviors of Zn Substituted Li-Ni Ferrite Synthesized by Double Sintering Technique Abdulla Al Noman 1 , Humayun Kabir 2* , Md. Mamun-Or-Rashid 1 , M. S. Bashar 3 , Mashudur Rahaman 3 , Md. Abdul Gafur 4 , A.T.M.K. Jamil 1 , Syed Jamal Ahmed 1 , Md. Rakibul Qadir 4 , Farid Ahmed 2 1 Department of Physics, Dhaka University of Engineering & Technology (DUET), Bangladesh. 2 Department of Physics, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh. 3 Institute of Fuel Research and Development (IFRD), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka-1205, Bangladesh. 4 Pilot Plant & Process Development Center, Bangladesh Council of Scientific & Industrial Research (BCSIR), Dhaka 1205, Bangladesh. Received: 02 November 2015; Revised: 23 November 2015; Accepted: 30 November 2015 Abstract: In this work we report a study of the structural and electrical behaviors of Zn substituted Li-Ni ferrite prepared by double sintering ceramic technique having the general formula Li0.15NixZn0.85-2xFe2+xO4 (LNZFO), where x = 0.00, 0.10, 0.20, 0.30 and 0.40. The samples were sintered at 1050 o C for 4 hours in the normal atmosphere. The prepared samples were confirmed in the single-phase cubic spinal structure by the X-ray diffraction method. The bulk density of LNZFO increased whereas lattice parameter decreased with increasing the Ni content. The complex permeability, loss factor and Q-factor were measured as a function of the frequency in the range from 10 2 Hz to 10 8 Hz, respectively. Real part of permeability and Q-factor were decreased whereas imaginary part of permeability and loss factor were increased with increasing Ni-content for the frequency dependent cases. Dielectric constant and AC resistivity of LNZFO decreased with increasing frequency.