Investigation of Structure and Magnetic Properties of Ni Ferrite Powders Synthesized by Plasma Arc Discharge
In the present work, NiFe2O4 powder was synthesized by plasma arc discharge method. A mixture of iron and nickel powders with the appropriate molar ratio was prepared and formed into the cylindrical shapes. The synthesis process was performed under the air atmosphere with the pressure of 1 atm and the applied arc current of 400 A. After establishing an arc between the electrodes, the as-synthesized powders were collected and their structure, microstructure and magnetic properties were examined by XRD, FESEM and VSM, respectively. The XRD results show that the nickel ferrite with a spinel structure is successfully formed. The microstructural examinations reveal that the average particle size is about 120 nm. Saturation magnetization and coercivity of the as-synthesize powders are found to be 43.82 emu/g and 99 Oe, respectively.
Article Type:
Research/Original Article
New Materials, Volume:7 Issue:4, 2017
17 - 26  
روش‌های دسترسی به متن این مطلب
اشتراک شخصی
در سایت عضو شوید و هزینه اشتراک یک‌ساله سایت به مبلغ 300,000ريال را پرداخت کنید. همزمان با برقراری دوره اشتراک بسته دانلود 100 مطلب نیز برای شما فعال خواهد شد!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی همه کاربران به متن مطالب خریداری نمایند!