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Reactive Laser Ablation Synthesis of Nanosize Aluminum Nitride
- Source :
- Journal of the American Ceramic Society. 75:3465-3468
- Publication Year :
- 1992
- Publisher :
- Wiley, 1992.
-
Abstract
- 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/cm2 and 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 observations.
Details
- ISSN :
- 15512916 and 00027820
- Volume :
- 75
- Database :
- OpenAIRE
- Journal :
- Journal of the American Ceramic Society
- Accession number :
- edsair.doi...........8f1bf85fcff4c6a97a4c9b12c077c1eb