Abstract: Crystallisation kinetic and phase transformation behaviour of the electroless nicke l-phosphorus deposit with 6-9wt% phosphorus content were studied. The deposit washeated in the differential scanning calorimetry (DSC) apparatus to 300℃ 800℃ at20℃/rain, followed by the X-ray diffraction (XRD) analysis. The sequence of cwstallisation process was: mixture of amorphous and microcrystalline nickel phases →intermediate metastable, f.c.c, nickel and stable Ni3P phases → f.c.c, nickel and sta-ble Ni3P phases. Preferred orientation of nickel { 200｝ plane was developed after theheating processes. Activation energy of crystallisation process was determined fromthe DSC analyses at 5-50℃/min. Crystallisation temperatures were found increasedwith increasing heating rate.

Key words: coating, crystallization, nickel, phase transitions, phosphorus.X-ray diffraction