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New Superconductivity Data Have Been Reported by Investigators at University of Putra Malaysia (Trends of Parallel Microstructure and Magnetic...

September 3, 2014



New Superconductivity Data Have Been Reported by Investigators at University of Putra Malaysia (Trends of Parallel Microstructure and Magnetic Properties Evolution in Co0.5Zn0.5Fe2O4)

By a News Reporter-Staff News Editor at Electronics Newsweekly -- Current study results on Superconductivity have been published. According to news reporting from Selangor, Malaysia, by VerticalNews journalists, research stated, "The present paper reports on an effort to expose and scientifically explain the microstructure-magnetic properties relationship as they evolve with increasing sintering temperature. Mechanical alloying was used to prepare cobalt-zinc ferrite nanoparticles with sintering temperature from 800 to 1,350 A degrees C with 50 A degrees C increment."

The news correspondents obtained a quote from the research from the University of Putra Malaysia, "The microstructure of the samples was observed using a field emission scanning electron microscope, and the magnetic parameters, such as the real permeability and loss factor, were measured at room temperature in the frequency range from 10 MHz to 1.0 GHz using an Agilent 4291B impedance/material analyzer. The B-H hysteresis of the samples was investigated using a MATS-2010SD Static Hysteresisgraph. From the results, the real permeability and loss factor were observed to increase up to 1,250 A degrees C. These increases corresponded to increases in grain size and are mainly due to easier domain wall movement. However, due to zinc loss, and as well as the saturation induction decreased from 1,300 to 1,350 A degrees C. The coercivity increased up to 850 A degrees C and decreased with increasing temperature."

According to the news reporters, the research concluded: "This increasing-to-decreasing coercivity trend corresponded well with the single- to multi-domain grain size transition marked by critical grain size at about 0.13 mu m."

For more information on this research see: Trends of Parallel Microstructure and Magnetic Properties Evolution in Co0.5Zn0.5Fe2O4. Journal of Superconductivity and Novel Magnetism, 2014;27(8):1903-1910. Journal of Superconductivity and Novel Magnetism can be contacted at: Springer, 233 Spring St, New York, NY 10013, USA. (Springer - www.springer.com; Journal of Superconductivity and Novel Magnetism - www.springerlink.com/content/1557-1939/)

Our news journalists report that additional information may be obtained by contacting M.M.M. Zulkimi, University of Putra Malaysia, Dept. of Phys, Fac Sci, Serdang 43400, Selangor, Malaysia. Additional authors for this research include M. Hashim, I. Ismail, R.S. Azis, S. Kanagesan, M.S. Mustaffa and M. Zawawi.

Keywords for this news article include: Asia, Selangor, Malaysia, Superconductivity

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Electronics Newsweekly


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