Effect of Deposition Time on the Characteristics of High Phosphorous Nickel Deposit, Deposited Using Electroless Route

Abstract:

Electroless Ni-high P alloy is deposited on commercial aluminium. Parameters are set so that deposit will be crystalline in nature with a very high phosphorous content. Deposition time is the variable. It is observed that all the deposits have nodular morphology indicating nucleation and growth phenomena. The nodules become coarse with increase in the deposition time. The deposit changes from clear crystalline to nanocrystalline with increase in deposition time. Coatings with lower deposition times have porosity in it.

• Periodical: Materials Science Forum (Volume 710)
• Pages: 671-676
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.710.671
• Online since: January 2012
• Authors: Venkat Ram Reddy, Bharath Dixit, K. Udaya Bhat
• Keywords: Deposition Time, Electroless Deposition, Nickel-Phosphorous Alloy

References

[1] K.G. Keong, W. Sha, S Malinov, Crystallisation kinetics and phase transformation behaviour of electroless nickel-phosphorus deposits with high phosphorus content, J. of Alloys and Comp. 334 (2002) 192-199.

DOI: 10.1016/s0925-8388(01)01798-4

[2] T.S.N. Sankara Narayanan, I. Bhaskaran, K. Krishnaveni, S Parthiban, Deposition of electroless Ni-P graded coatings and evaluation of their corrosion resistance, Surf. and Coatings Technology 200 (2006) 3438-3445.

DOI: 10.1016/j.surfcoat.2004.10.014

[3] G.O. Mallory, J.B. Hajdu (Eds) Electroless Plating and Applications, AESF, Orlando, 1991.

[4] W. Riedel, Electroless Plating, ASM International, Ohio, 1991.

[5] D.W. Bandrand, Electroless nickel plating, Surface engineering ASM Handbook, Vol. 5, American Society for Materials, Materials Park, Ohio, 1994.

[6] M.M. Younan, S.A. Abo El-Enine, Electroless deposition of Nickel-Copper-Phosphorous alloy on Aluminium, Galvanotechnik, 102 (2004) 2876-2881.

[7] E.L. Roy, J.G. Kaufman, Aluminium alloy castings-Properties, processes and applications, ASM International, Materials Park, Ohio, 2004.

[8] S.S. Tulsi, Properties of electroless nickel, Trans. of the Institute of Metal Finishing, 64 (1996) 73-76.

[9] N.M. Martyak, S. Wetterer, L. Harrison, M. McNeil, Annealing behaviour of electroless coating, 92 (1994) 111-116.

[10] E.M. Ma, S.F. Luo, P.X. Li, Transmission electron microscopy study on the crystallization of amorphous Ni-P electroless deposited coatings, Thin Solid Films 166 (1988) 511-520.

DOI: 10.1016/0040-6090(88)90388-4

[11] R.C. Agarwala, S. Ray, Vibration structure in electroless Ni-P films with phosphorous content, Z. Metallkd, 79 (1988) 472-475.

[12] Su Hoon Park, Dong Nyung Lee, A study on the microstructure and phase transformation of electroless nickel deposits, J. of Mater. Sci., 23 (1988) 1643-1654.

DOI: 10.1007/bf01115703

[13] P.S. Kumar, P.K. Nair, Studies on crystallization of electroless Ni-P deposits, J. of Mater. Proc. Tech., 56 (1996) 511-520.

[14] J.N. Balaraju, K.S. Rajam, Electroless deposition and characterisation of high phosphorous Ni-P-Si3N4 composite coatings, Int. J. Electrochem. Sci., 2 (2007) 747-761.

[15] A. Malecki, A. Micek-Ilnicka, Electroless nickel plating from acid bath, Surf. and Coat. Tech., 123 (2000) 72-77.

DOI: 10.1016/s0257-8972(99)00423-5