International OPEN ACCESS Journal Of Modern Engineering Research (IJMER) | IJMER | ISSN: 2249–6645 | www.ijmer.com | Vol. 5 | Iss. 4 | Apr. 2015 | 34 | Comparison between Chemically Treated Sisal Fiber with Al 2 O 3 and Fe 2 O 3 : -It’s Dielectric Loss Asif Jehan a , Dr. Shirish Joshi b And Dr M.N. Bapat c a, b: -Motilal vigyan mahavidhalya Bhopal (M.P.) India c: - regional institute of education Bhopal (M.P.) India I. Introduction The crystalline structure of LiAlO 2 depends mainly on the preparation methods. Many researches prepared LiAlO 2 with difAlrent structures. V.R. Galakhov et al. prepared α -LiAlO 2 with Fm-3m space group by using solid state reaction and M. Tabuchi et al. prepared α-LiAlO 2 with Fm3m space group by hydrothermal synthesis [1-3]. Similarly, ȕ-LiAlO 2 , Ȗ - LiAlO 2 and layered LiAlO 2 are prepared by hydrothermal synthesis and other methods. Corrugated LiAlO 2 and Goethite type LiAlO 2 are prepared by ion exchange method. In comparison with the conventional solid phase synthesis methods, hydrothermal method is one of the simplest and best methods to prepare lithium based cathode materials [4-7]. In case of the electrical properties of the oxides, grain boundaries play an important role. The measurement of conductivity and permittivity shows dispersion behavior which offers an opportunity to gain some information of ionic migration process. Considering the significance, the electrical conductivity studies on various lithium-based oxides such as LiCoO 2 , LiCeO 2 , LiSmO 2 , Li2SnO 3 , Li2MnO 3 , LiMn 2 O 4 , and Li2V 2 O 5 , and others have been reported in the literature [8-11]. However, to the best of our knowledge, there are meager reports on electrical and dielectric properties of LiAlO 2 . A detailed study on the temperature and frequency depended electrical properties is necessary to understand the conduction mechanism in LiAlO 2 for effective utilization as cathode material in the fabrication of lithium ion batteries. In the oxides of aluminum a-Al 2 0 3 is the most stable compound. For the non-existence of Al++ ions a-Al 2 0 3 has higher electrical resistivity than other oxides of aluminum such as Al 3 0 4 , AlO, and Aluminates. It has been reported, however, that at the temperature above 1200°C there is the possibility of the appearance of Al++ ions in a-Al 2 0 3 . When the oxides contain Aluminum ions, the hopping of electrons between Aluminum and aluminum ions gives rise to higher conductivity. Thus for samples possessing both the conductive and less-conductive phases the Maxwell-Wagner interfacial polarizations are observed. With the surface modified by the use of mild reducing condition of sintering Hirbon reported the interfacial polarization in the sintered compacts of a-Al 2 0 3 . On the other hand, in a-Al203 containing other ions of different valences such as Ti" ions polarizations due to permanent dipoles of Al++_Al+++ induced by Ti+4 ions were observed at very low temperature [12-15] LiFeO 2 has various crystalline structures such as α- LiFeO 2 , ȕ-LiFeO 2 , Ȗ -LiFeO 2 , Layered LiFeO 2 , Corrugated LiFeO 2 , Goethite type LiFeO 2 etc. The crystalline structure of LiFeO 2 depends mainly on the preparation methods. Many researches prepared LiFeO 2 with different structures. V.R. Galakhov et al. prepared α -LiFeO 2 with Fm-3m space group by using solid state reaction and M. Tabuchi et al. prepared α -LiFeO 2 with Fm3m space group by hydrothermal synthesis [16-18]. Similarly, ȕ-LiFeO 2 , Ȗ - LiFeO 2 and layered LiFeO 2 are prepared by hydrothermal synthesis and other methods. Corrugated LiFeO 2 and Goethite type LiFeO 2 are prepared by ion exchange method. In comparison with the conventional solid phase synthesis methods, hydrothermal method is one of the simplest and best methods to prepare lithium based cathode materials [19- 22]. In case of the electrical properties of the oxides, grain boundaries play an important role. The measurement of conductivity and permittivity shows dispersion behavior which offers an opportunity to gain some information of ionic migration process. Considering the significance, the electrical conductivity studies on various lithium-based oxides such as LiCoO 2 , LiCeO 2 , LiSmO 2 , Li 2 SnO 3 , Li 2 MnO 3 , LiMn 2 O 4 , and Li 2 V 2 O 5 , and others have been reported in the literature [23-26]. However, to the best of our knowledge, there are meager reports on electrical and dielectric properties of LiFeO 2 . A detailed study on the temperature and frequency depended electrical properties is necessary to understand the conduction mechanism in LiFeO 2 for effective utilization as cathode material in the fabrication of lithium ion batteries. ABSTRACT: Aluminum oxide and iron oxide synthesized through sintering route. The present research work deals with ferrite and aluminum composite prepared using chemical reactions. Aluminum nitrate, ferric nitrate and ammonium chloride doped with sisal fiber has been prepared. The comparative studies of aluminum oxide and iron oxide were examined through dielectric measurement. Key words: - Al 2 O 3 , Fe 2 O 3 , sintering method, tanδ