Reactive Laser Ablation Synthesis of Nanosize Aluminum Nitride
作者:
Gregory P. Johnston,
Ross E. Muenchausen,
Douglas M. Smith,
Steve R. Foltyn,
期刊:
Journal of the American Ceramic Society
(WILEY Available online 1992)
卷期:
Volume 75,
issue 12
页码: 3465-3468
ISSN:0002-7820
年代: 1992
DOI:10.1111/j.1151-2916.1992.tb04451.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
An aluminum (Al) target was laser ablated in a nitrogen (N2) atmosphere, producing aluminum nitride (AlN) powder. These powders were calcined at 900°C for 2 h. Powders were produced at various nitrogen pressures, and the calcined powders were tested for unreacted aluminum content, using differential thermal analysis (DTA). The AlN powder, produced at a laser fluence of 12 J/cm2and a nitrogen pressure of 10.0 kPa (75 torr), showed no evidence of unreacted aluminum by DTA and was phase‐pure AlN by X‐ray diffraction (XRD). The surface area of this powder is 82 m2/g, corresponding to a particle size of ∼11 nm, which is in good agreement with TEM observ
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