Cadmium iron oxide as transformer core material

Researchers can try cadmium iron oxide (cadmium ferrite) as a potential core material for transformers. It is an antiferromagnetic material when synthesized in bulk form with grain size some micrometers. New tools for synthesis have now emerged and we can easily synthesize nanosized cadmium ferrite using sol gel method. Take cadmium sulphate and iron sulphate in the weight ratio 1:2. Dissolve in distilled water and heat the solution at 373 K for 7 hours. To the boiling solution add sodium hydroxide solution drop by drop till the pH of the solution becomes 11.5. Allow the solution to cool. When it attains room temperature, add ethylene glycol and keep the solution in a fume cupboard. Heat the solution for 30 minutes maintaining a temperature of 423K. Cooling the solution, ultrafine particles of cadmium iron oxide is obtained.