Document Details Document Type : Article In Journal  Document Title : A study on Cu substituted Ni-Cu-Zn ferrites synthesized using egg-white A study on Cu substituted Ni-Cu-Zn ferrites synthesized using egg-white   Subject : Chemistry  Document Language : English  Abstract : This paper examines the effect of copper substitution on the structural and magnetic properties in nano-crystalline ferrite series of nominal composition; Ni0.7-xCuxZn0.3Fe2O4 (where x = 0.1-0.6) synthesized by a simple method using metal nitrates and freshly extracted egg-white. X-ray diffraction measurements (XRD) confirmed the formation of single-phase cubic spinel structure. The average crystallite size was calculated using XRD pattern and confirmed by transmission electron microscope (TEM). The nearly constant lattice parameters obtained with Cu substitution was attributed to the small difference in the ionic radius between Ni2+ and Cu2+ ions. FT-IR spectra showed two absorption bands assigned to the tetrahedral and octahedral complexes. The effect of Cu concentration on the magnetic properties was investigated using vibrating sample magnetometer (VSM) and molar magnetic susceptibility measurements. The decrease in the saturation magnetization and the Curie temperature values with increasing Cu content was explained in terms of the magnetic moments and magnetic exchange interaction existing between the antiparallel uncompensated electron spin of A and B sublattices. The magnetic measurements also proved that the entire preparation method has a great effect on enhancing the magnetic properties of the system.  ISSN : 09258388  Journal Name : Journal of Alloys and Compounds  Volume : 492  Issue Number : 1-2  Publishing Year : 1431 AH 2010 AD  Article Type : Article  Added Date : Monday, April 12, 2010  Researchers Researcher Name (Arabic) Researcher Name (English) Researcher Type Dr Grade Email محمد عبدالفتاح جبل Gabal, Mohamed A Researcher Doctorate mgabalabdonada@yahoo.com ياسر محمد العنقري Al Angari, Y M Researcher Doctorate YALANGARI@kau.edu.sa صالح سالم الجعيد Al-Juaid, Salih S Researcher Doctorate saljuaid@kau.edu.sa Files File Name Type Description  26463.pdf pdf Abstract Back To Researches Page