Reactions of Aluminum Hydride Derivatives with Ammonia−Borane:  A New Approach toward AlN/BN Materials

Reactions of Aluminum Hydride Derivatives with Ammonia−Borane:  A New Approach toward AlN/BN Materials

Preceramic precursors containing Al−N−B linkages were produced from the reactions of Me3NAlH3 with NH3BH3 in 1:1 and 1:2 ratios in toluene solutions followed by treatment with liquid ammonia. Both precursors were transformed into intimate ceramic mixtures of AlN and BN via pyrolysis under NH3 at 100...

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Veröffentlicht in:Chemistry of materials 1996-12, Vol.8 (12), p.2839-2842
Hauptverfasser: Dou, Danan, Ketchum, Douglas R, Hamilton, Ewan J. M, Florian, Pierre A, Vermillion, Karl E, Grandinetti, Philip J, Shore, Sheldon G
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Exact sciences and technology
Miscellaneous
Technical ceramics
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Zusammenfassung:Preceramic precursors containing Al−N−B linkages were produced from the reactions of Me3NAlH3 with NH3BH3 in 1:1 and 1:2 ratios in toluene solutions followed by treatment with liquid ammonia. Both precursors were transformed into intimate ceramic mixtures of AlN and BN via pyrolysis under NH3 at 1000 °C. The AlN/BN ceramic composites were characterized by IR, XRD, and solid-state 27Al and 11B MAS NMR spectroscopies. SEM studies revealed that they were composed of nanosized composite particles of AlN and BN.
ISSN:0897-4756
1520-5002
DOI:10.1021/cm960355a