Rietveld Refinement of Cobalt Doped Magnesium Aluminate Spinel Nanoparticles

Authors

  • Dr. Shyam Sunder  Department of Applied Science & Humanities, Ch. Devi Lal State Institute of Engineering & Technology Panniwala Mota, Sirsa, India
  • Dr. Wazir Singh  Department of Applied Science & Humanities, Ch. Devi Lal State Institute of Engineering & Technology Panniwala Mota, Sirsa, India

Keywords:

Rietveld Refinement, Magnesium Aluminate, Cobalt, Nanoparticle, XRD.

Abstract

Among various transition metals, Co: MgAl2O4 can be regarded as a good one for applications like high mechanical resistance, high chemical and thermal stability, and low temperature sinterability of spinel type oxide materials. The physical properties like chemical strength, catalytic ability, and high temperature resistivity of cobalt doped magnesium aluminate have been further enhanced. Cobalt-magnesium aluminate crystallizes at relatively higher temperature, i.e. above 850°C as compared to un-doped magnesium aluminate that crystallizes around 800°C. A single phase cobalt doped magnesium aluminate fcc ordered-spinel nanopowder (grain size ~ 20 nm) with a good, chemical homogeneity, is obtained by using co-precipitation method followed by thermal treatment at temperature 1000°C for 4h, in air. Rietveld refinement is performed by FULLPROF program and used to confirm the results of XRD of samples calcined at 850oC and 1000oC (4h).

References

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International Journal of Scientific Research in Science, Engineering and Technology

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Published

2018-05-30

Issue

Volume 4, Issue 8, May-June-2018

Section

Research Articles

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How to Cite

[1]
Dr. Shyam Sunder, Dr. Wazir Singh, " Rietveld Refinement of Cobalt Doped Magnesium Aluminate Spinel Nanoparticles , International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 4, Issue 8, pp.722-726, May-June-2018.