Solidification of tin on quasicrystalline surfaces

Alok Singh, H. Somekawa, Y. Matsushita, A. P. Tsai

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    A two-phase alloy of β-Sn and Al 63Cu 25Fe 12 quasicrystal produced by melt-spinning was annealed and aged to form various microstructures of tin in a quasicrystalline (QC) or microcrystalline (MC) matrix. The morphology and structure of the interfaces was studied by scanning and transmission electron microscopy and was related to melting and solidification behavior of tin studied by differential scanning calorimetry. In a MC matrix the tin phase occurred as nanoparticles and solidified with an undercooling of about 35°C. In a QC matrix, tin formed intergranular layers on faceted matrix grains. Tin showed multiple solidification peaks in undercooling ranging from 8°C to 43°C, indicating several distinct nucleation sites which compete with each other and are selected kinetically. The interfacial energy (depending on the structural state of the matrix) had a more dominating effect on the solidification of tin than the size, shape and the distribution of the tin particles. It was also concluded that solidification of tin is easier on quasicrystalline surfaces than on aluminum.

    Original languageEnglish
    Pages (from-to)1106-1128
    Number of pages23
    JournalPhilosophical Magazine
    Volume92
    Issue number9
    DOIs
    Publication statusPublished - 2012 Mar 21

    Keywords

    • phase transformation
    • quasicrystal
    • solidification
    • tin
    • transmission electron microscopy

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Fingerprint Dive into the research topics of 'Solidification of tin on quasicrystalline surfaces'. Together they form a unique fingerprint.

    Cite this