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Microstructural evolution of Ni-NaCl mixtures during mechanochemical reaction and mechanical milling

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Abstract

The evolution of microstructure of Ni and NaCl mixtures formed by mechanochemical reaction and mechanical milling has been studied using X-ray diffraction, electron microscopy and magnetic measurements. Separate nano-sized Ni particles were formed by continuous solid-state reaction of NiCl2 + 2Na during mechanical milling. Further milling resulted in the growth of clustered particles due to inter-particle welding during collision events. On the other hand, milling of micron-sized Ni and NaCl powders resulted in a layered particle morphology and continuous decrease in particle size with increasing milling time.

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Authors and Affiliations

  1. Special Research Centre for Advanced Mineral and Materials Processing, The University of Western Australia, Nedlands, Perth, WA, 6907, Australia

    J. Ding, T. Tsuzuki & P. G. McCormick

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  1. J. Ding
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  2. T. Tsuzuki
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  3. P. G. McCormick
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Ding, J., Tsuzuki, T. & McCormick, P.G. Microstructural evolution of Ni-NaCl mixtures during mechanochemical reaction and mechanical milling. Journal of Materials Science 34, 5293–5298 (1999). https://doi.org/10.1023/A:1004736602847

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  • DOI: https://doi.org/10.1023/A:1004736602847

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