Synthesis of Y- Ni alloy by calciothermic reduction diffusion process

  • Marimuthu Ilayaraja
  • L. John Berchmans
  • Sankara Raman Sankaranarayanan
Keywords: alciothermic Reduction Diffusion process (CRD), intermetallics, unreacted core model theory, Gibbs free energy, VSM technique


In this study, magnetic material of the Yttrium based alloy such as nickel intermetallic compound is prepared by calciothermic reduction process (CRD), at different temperatures, for 7 hours, under Argon atmosphere. Kinetic analyses have been used to calculate the conversion rate and the rate constant at different temperatures. Thermodynamic calculations have been performed to estimate the Gibbs free energy at different temperatures. Scanning Electron Microscopy (SEM), X-ray diffraction and EDX analysis have been performed to characterize the samples produced at 1273 K. Magnetic properties have been estimated using Vibrating Sample Magnetometer.


Jianhua Lin, Shengfeng Liu, Xiaoliang Qian, JiumaBayi, Mianzeng Su, Synthesis of Nd2Fe17 by Reduction-diffusion process, Journal of Alloys and compounds, vol238 , (1996), 113-115.

Rare Earth Industries: Moving Malaysia’s Green Economy Forward, A Report by The Academy of Sciences Malaysia &The National Professors’ Council, August 2011.

Chiranjib Kumar Gupta, Chemical Metallurgy: Principles and Practice.WILEY-VCH(2003),384.

M. Ilayaraja, L. John Berchmans, Sankara Raman Sankaranarayanan, J. of Metallurgical and Materials Engineering, vol. 20, n 1, (2014), 35 – 40.

T. Tanabe, Y. Nagai, T. Kubota and Z. Asaki, Mater. Transactions, JIM, 33, n 12, (1992), 1163 – 1170.

Verma, R.K. Sidhu, S. Mahajan, O.P. Pandey, J. of Mater. Science Letters, 15, (1996), 2088-2090.

GuangsiGuo, Guangqiang Li, and Liang Liu, J. of Mater. Sci. Technol., 16, n 2, (2000), 181- 182.

Journal could be found at

O. Levenspiel, Chemical Reaction Engineering, Wiley, NY, 1972, pp. 357–400.

R. O. Ajemba and O. D. Onukwuli, Am. J. Sci. Ind. Res. 3, n3, (2012), 115-121.

GuangsiGuo, Guangtai Wang, and Zhitong Sui, J. of Mater. Sci. Technol., 20, n1, (2004), 68-70.

Articles - archived