Conversion of Succinate-and Adipate-Coordinated Al(III) Complexes to AlN in <tex>$N_2$</tex> and <tex>$NH_3$</tex> Atmospheres

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J. Korean Ceram. Soc. > Volume 33(4); 1996 > Article

Journal of the Korean Ceramic Society 1996;33(4): 455.

질소와 암모니아 분위기에서 알루미늄(III)의 호박산 및 아디프산 착물의 AlN으로의 변환

안상경, 오창우, 정우식

영남대학교 공업화학과

Conversion of Succinate-and Adipate-Coordinated Al(III) Complexes to AlN in $N_2$ and $NH_3$ Atmospheres

ABSTRACT

Aluminium nitride (AlN) powder was prepared by using aluminium (III) complexes with dibasic carboxylate ligands(adipato)(hydroxo) aluminium(III) and (hydroxo)(succinato)aluminium (III) as a precursor. The AlN pow-der was obtained by calcining the complexes without mixing any carbon source under a flow of ammonia at 120$0^{circ}C$ Contary to the conventional carbothermal reduction and nitridiation the process of decarboniza-tion of the residual carbon was not required because of the reaction of ammonia with carbon at temperature >100$0^{circ}C$. Fine AlN powder was also prepared by calcining a mixture of an (adipato)(hydroxo)aluminium(III) complex and carbon under a flow of nitrogen at 140$0^{circ}C$ The AlN powders prepared were ultrafine and their morphology was almost the same as that of powders of two precursors.

Key words: Aluminium nitride, Powder, Complex, Precursor, Calcination