A coupled map lattice model for dendrite in diffusion field

Masako Ohtaki, Haruo Honjo, Hidetsugu Sakaguchi

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    We have newly performed simulations of a coupled map lattice model including surface tension for melt growth. We obtain a phase diagram of various patterns. An angular dendrite appears with a weak influence of the latent heat. The temperature profile near the tip in decreasing latent heat and in increasing undercooling shows the same tendency. From this, we explain the cause of the disagreement with V ∝ Ktip 2, where V is tip velocity and Ktip is tip-curvature. In this model, the side-branches are generated from the temperature fluctuation that comes from the curvature defined with a matrix.

    Original languageEnglish
    Pages (from-to)159-163
    Number of pages5
    JournalJournal of Crystal Growth
    Volume237-239
    Issue number1-4 I
    DOIs
    Publication statusPublished - Apr 1 2002

    Fingerprint

    Latent heat
    dendrites
    latent heat
    Undercooling
    curvature
    Phase diagrams
    Surface tension
    supercooling
    temperature profiles
    Temperature
    interfacial tension
    tendencies
    phase diagrams
    causes
    matrices
    simulation
    temperature

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics

    Cite this

    A coupled map lattice model for dendrite in diffusion field. / Ohtaki, Masako; Honjo, Haruo; Sakaguchi, Hidetsugu.

    In: Journal of Crystal Growth, Vol. 237-239, No. 1-4 I, 01.04.2002, p. 159-163.

    Research output: Contribution to journalArticle

    Ohtaki, Masako ; Honjo, Haruo ; Sakaguchi, Hidetsugu. / A coupled map lattice model for dendrite in diffusion field. In: Journal of Crystal Growth. 2002 ; Vol. 237-239, No. 1-4 I. pp. 159-163.
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