AlN formation from a hydrotalcite-polyacrylonitrile intercalation compound by carbothermal reduction

Yoshiyuki Sugahara, Norimasa Yokoyama, Kazuyuki Kuroda, Chuzo Kato

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    As a precursor for AlN production by carbothermal reduction, a hydrotalcite (layered magnesium-aluminum double hydroxide)-polyacrylonitrile (PAN) intercalation compound has been prepared for the first time. After the layers were expanded by the replacement of the interlayer anions with the CH3(CH2)11OSO3 - ions, the acrylonitrile monomer was intercalated and subsequently polymerized. By the heat treatments at 1100°C-1600°C in N2, AlN, MgO and MgS formed. MgO was detected in the products heated up to 1300°C. MgS formation was observed in the reactions below 1500°C. On heating at 1600°C, single phase submicron AlN grains were obtained.

    Original languageEnglish
    Pages (from-to)163-167
    Number of pages5
    JournalCeramics International
    Issue number3
    Publication statusPublished - 1988


    ASJC Scopus subject areas

    • Ceramics and Composites

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