Document Details

Document Type : Article In Journal 
Document Title :
Magnetic properties of NiCuZn ferrite nanoparticles synthesized using egg-white
Magnetic properties of NiCuZn ferrite nanoparticles synthesized using egg-white
 
Subject : Chemistry 
Document Language : English 
Abstract : A new process to prepare single-phase nano-sized ferrites, Ni0.8-xCu0.2ZnxFe2O4 with x = 0.1-0.7, was developed using egg-white precursors. TG measurement showed that, the precursors must be calcined at 550 °C. XRD patterns indicated the formation of single-phase cubic ferrites with particle size in the range 28.7-48.4 nm. TEM image gave particle size agrees well with that estimated using XRD. FT-IR spectroscopy showed the characteristic ferrite bands. Hysteresis loops measurements exhibited an increase in the saturation magnetization value (Ms) up to zinc content of 0.2 followed by unexpected decrease, which suggests the preference of Zn2+ ions to occupy octahedral sites. The decrease in the coercivity (Hc) with increasing zinc content is attributed to the lower magneto-crystalline anisotropy of Zn2+ ions compared to Ni2+ ions. Temperature dependence of the molar magnetic susceptibility (χM) suggested a ferrimagnetic behavior of the investigated samples and showed a decrease in the value of the Curie temperature (TC) with increasing zinc. 
ISSN : 00255408 
Journal Name : Materials Research Bulletin 
Volume : 45 
Issue Number : 5 
Publishing Year : 1431 AH
2010 AD 
Article Type : Article 
Added Date : Saturday, April 10, 2010 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
محمد عبدالفتاح جبلGabal, Mohamed AResearcherDoctoratemgabalabdonada@yahoo.com

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