|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Pan American Materials Congress: Materials for Green Energy
||PAN-21: Structural and Magnetic Properties of Nano Cobalt Ferrites for Green Refrigeration Technology
||Prabhakaran Thandapani, Mangalaraja R.V
|On-Site Speaker (Planned)
Nano cobalt ferrites were synthesized through co-precipitation method at reaction temperatures of 40 and 85°C for 1 hour by maintaining 0.84 M of NaOH solution. As-prepared nanoferrites particles were calcinated at 500 and 800°C for 2 hours in air. The structural analysis confirmed that the nanoferrites obtained in both reaction temperatures were highly crystalline and exhibited characteristic vibrations near 390 to 600 cm<-1> which varied with particle size. TEM and EDX analyses conveyed that the nano cobalt ferrites were of nearly spherical with uniform size distribution and exact stoichiometry ratio 1:2 (Co: Fe), respectively. Saturation magnetization of the nano cobalt ferrites increased with particles size. The correlation between cation distribution and magnetism were discussed. The properties of nano ferrites were effectively tuned by controlling their particle size, and divalent and trivalent cation distribution in tetrahedral (A) and octahedral (B) sublattices, respectively, which will be suitable for magnetic refrigeration technology.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)