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Growth of fractal patterns during irradiation-induced amorphization in nano-sized Ni–W multilayers

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Abstract.

In the Ni–W system, a uniform amorphous Ni–W phase was obtained by ion irradiation of the nano-sized Ni–W multilayers at liquid-nitrogen temperature. Interestingly, before undergoing complete amorphization, fractal patterns were observed at a relatively low irradiation dose (3×1014 Xe+/cm2), and the patterns were characterized to consist of crystalline grains of Ni-enriched solid solution. The fractal dimension was measured to be about 1.68±0.05, which was very close to that expected by the cluster diffusion-limited aggregation model.

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Authors and Affiliations

  1. Advanced Materials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R. China, , , , , , CN

    Z.F. Li & B.X. Liu

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  1. Z.F. Li
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  2. B.X. Liu
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Received: 30 January 2002 / Accepted: 2 February 2002 / Published online: 3 May 2002

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Li, Z., Liu, B. Growth of fractal patterns during irradiation-induced amorphization in nano-sized Ni–W multilayers . Appl Phys A 75, 445–448 (2002). https://doi.org/10.1007/s003390201316

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  • DOI: https://doi.org/10.1007/s003390201316

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