Structural, Mechanical, Electrical and Magnetic Properties of Mn–Zn Substituted Ca-hexaferrites

Authors

  • C. L. Khobaragade Govindrao Wanjari College of Engineering & Technology, Nagpur, India
  • N. A. Wagdhare Govindrao Wanjari College of Engineering & Technology, Nagpur, India
  • C. B. Khobragade Govindrao Wanjari College of Engineering & Technology, Nagpur, India
  • A. K. Akant Manoharbhai Patel College of Engineering. & Technology, Gondia, India
  • R. K. Khatarkar Yashwantrao Chavan College of Engineering, Nagpur, India
  • S. V. Soni Yashwantrao Chavan College of Engineering, Nagpur, India
  • K. G. Rewatkar Dr. Ambedkar College, Deekshabhoomi, Nagpur-440010, India

Keywords:

XRD, X-ray density, porosity, SEM, Poisson’s ratio, Curie temperature

Abstract

In the present investigation, the samples with chemical composition Ca(CoTi)0.5(MnZn)x/2Fe11–xO19 with (x = 0      to 1.0) have been synthesized using perfect stoichiometric proportions of reacting oxides by standard ceramic technique. The pellets of 15 mm diameter were prepared and sintered at 1313 K in air atmosphere for 106 h and characterized by using XRD and SEM. XRD studies of the samples showed hexagonal magnetoplumbite (M) structure with unit cell dimensions “a’ and “c” varies from 5 to 6 Å and 21 to 23 Å pertaining to space group P63/mmc (No. 194). The mass density of the ferrites were found to vary linearly and depend upon the sample’s mass and volume. The X-ray density depends on lattice constant and molecular weight of the sample. The computation of porosity has been done by considering bulk and X-ray density of the studied samples. The variation in the values of lattice parameter has to be recorded with increase in Mn–Zn concentration. The elastic properties of Mn–Zn doped Ca-hexaferrite have been studied using ultrasonic pulse transmission technique at 100 kHz at 300 K. The field-dependent electric and magnetic properties of prepared Ca-hexaferrite powder were investigated at different temperatures.

Author Biographies

  • C. L. Khobaragade, Govindrao Wanjari College of Engineering & Technology, Nagpur, India
    Department of Applied Physics
  • N. A. Wagdhare, Govindrao Wanjari College of Engineering & Technology, Nagpur, India
    Department of Applied Physics
  • C. B. Khobragade, Govindrao Wanjari College of Engineering & Technology, Nagpur, India
    Department of Applied Physics
  • A. K. Akant, Manoharbhai Patel College of Engineering. & Technology, Gondia, India
    Department of Physics
  • R. K. Khatarkar, Yashwantrao Chavan College of Engineering, Nagpur, India
    Department of Applied Physics
  • S. V. Soni, Yashwantrao Chavan College of Engineering, Nagpur, India
    Department of Applied Physics
  • K. G. Rewatkar, Dr. Ambedkar College, Deekshabhoomi, Nagpur-440010, India
    Department of Physics

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Published

2019-04-18

Issue

Vol. 1 No. 1-3 (2011)

Section

Articles

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