Pyrolytic conversion of the cage-type precursors into AlN

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    Abstract

    Aluminum nitride (AlN) was prepared via pyrolysis of cage-type poly(alkyliminoalane) [(HAlNR), (R=Et, iPr)] under Ar or NH3-N2 atmospheres. Both (HAlNiPr), and (HAlNEt)m were converted into ceramic residues with relatively high ceramic yields. The ceramic residues obtained via pyrolysis of the precursors under an Ar atmosphere contained considerable amounts of carbon, while most of carbon was removed during the pyrolysis under an NH3-N2 atmosphere. The only obtained crystalline phase was AlN, whose lattice parameters showed that isostructural Al2OC was rarely dissolved in the lattices of the 2H wurtzite-type structures.

    Original languageEnglish
    Pages (from-to)77-82
    Number of pages6
    JournalKey Engineering Materials
    Volume159-160
    Publication statusPublished - 1999

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    Keywords

    • Aluminum Nitride
    • Ceramic Precursor
    • Poly(alkyliminoalane)
    • Pyrolysis

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Chemical Engineering (miscellaneous)

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