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Aluminum Nitride Prepared by Nitridation of Aluminum Oxide Precursors

Kroke, Edwin and Loeffler, Lars and Lange, Fred F. and Riedel, Ralf (2002):
Aluminum Nitride Prepared by Nitridation of Aluminum Oxide Precursors.
In: Journal of the American Ceramic Society, 85 (12), pp. 3117-3119, AMER CHEMICAL SOC, WASHINGTON, USA, 4th International Conference on Advanced Ceramics and Glasses, MAUI, HAWAII, NOV 04-08, 2001, ISSN 00027820,
DOI: 10.1111/j.1151-2916.2002.tb00595.x,
[Conference or Workshop Item]

Abstract

Aluminum nitride (AlN) powders were prepared from the oxide precursors aluminum nitrate, aluminum hydroxide, aluminum 2-ethyl-hexanoate, and aluminum isopropoxide (i.e., Al(NO3)3, Al(OH)3, Al(OH)(O2CCH(C2H5)(C4H9))2, and Al(OCH(CH3)2)3). Pyrolyses were performed in flowing dry NH3 and N2 at 1000°–1500°C. For comparison, the nitride precursors aluminum dimethylamide (Al(N(CH3)2)3) and aluminum trimethylamino alane (AlH3�N(CH3)3) were exposed to the same nitridation conditions. Products were investigated using XRD, TEM, EDX, SEM, and elemental analysis. The results showed that nitridation was primarily controlled by the water:ammonia ratio in the atmosphere. Single-phase AlN powders were obtained from all oxide precursors. Complete nitridation was not obtained using pure N2, even for the non-oxide precursors.

Item Type: Conference or Workshop Item
Erschienen: 2002
Creators: Kroke, Edwin and Loeffler, Lars and Lange, Fred F. and Riedel, Ralf
Title: Aluminum Nitride Prepared by Nitridation of Aluminum Oxide Precursors
Language: English
Abstract:

Aluminum nitride (AlN) powders were prepared from the oxide precursors aluminum nitrate, aluminum hydroxide, aluminum 2-ethyl-hexanoate, and aluminum isopropoxide (i.e., Al(NO3)3, Al(OH)3, Al(OH)(O2CCH(C2H5)(C4H9))2, and Al(OCH(CH3)2)3). Pyrolyses were performed in flowing dry NH3 and N2 at 1000°–1500°C. For comparison, the nitride precursors aluminum dimethylamide (Al(N(CH3)2)3) and aluminum trimethylamino alane (AlH3�N(CH3)3) were exposed to the same nitridation conditions. Products were investigated using XRD, TEM, EDX, SEM, and elemental analysis. The results showed that nitridation was primarily controlled by the water:ammonia ratio in the atmosphere. Single-phase AlN powders were obtained from all oxide precursors. Complete nitridation was not obtained using pure N2, even for the non-oxide precursors.

Journal or Publication Title: Journal of the American Ceramic Society
Series Name: Journal of the American Ceramic Society
Volume: 85 (12)
Number: 12
Publisher: AMER CHEMICAL SOC, WASHINGTON, USA
Uncontrolled Keywords: POWDERS; ALN; CERAMICS; ROUTES; FILMS; AIN
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
Event Title: 4th International Conference on Advanced Ceramics and Glasses
Event Location: MAUI, HAWAII
Event Dates: NOV 04-08, 2001
Date Deposited: 26 Apr 2012 11:10
DOI: 10.1111/j.1151-2916.2002.tb00595.x
Official URL: https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1151-2916....
Funders: E. K. acknowledges the A.v. Humboldt Foundation for granting a Feodor Lynen Fellowship. A portion of E. K.’s salary was supported through funds from a Max Planck International Research Award., Nonsalary support came from the Materials Research Laboratory Program of the National Science Foundation under award No. DMR96–32716., The study was also supported, in part, by the Fonds der Chemischen Industrie (FCI, Frankfurt, Germany).
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