Spectroscopic characteristics of the plume generated during laser ablation of a ceramicpolymer composite

D K Low, Marc Schmidt, Lin Li

    Research output: Contribution to journalArticle

    Abstract

    The characteristics of Nd:YAG ablation of a 1:1 SiCpolysiloxane mixture and the polysiloxane material have been investigated, using time integrated spectroscopy and optical microscopic analysis. Spectroscopic results show a significant contribution of the plasma emissions can be attributed to the ceramic component of the mixture, while the polymer itself produces a thermal-like background emission spectrum, with only a single carbon emission line. It is possible to conclude that the ablation of the ceramic is the dominant parameter for the removal of the SiCpolysiloxane mixture, suggesting that the polymer only acts as a bonding material and is dissociated almost instantly. An interpretation of the ablation rates and the measured optical parameters is attempted.
    Original languageEnglish
    Pages (from-to)170-174
    Number of pages5
    JournalApplied Surface Science
    Volume168
    Issue number1-4
    Publication statusPublished - Dec 2000

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