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Highly crystalline AlN particles synthesized by SHS method
- Source :
-
Materials Letters . Aug2005, Vol. 59 Issue 19/20, p2605-2609. 5p. - Publication Year :
- 2005
-
Abstract
- Abstract: Aluminium nitride (AlN) powders were prepared by self-propagating high-temperature synthesis (SHS). Aluminium and AlN powder mixtures with weight ratios of about 60:40, in the absence and in the presence of 3-wt.% NH4F and 3-wt.% NH4F+3-wt.% carbon powders as additives were ignited in a nitrogen atmosphere of 8 MPa. Highly crystalline AlN particles with regular hexagonal morphology were obtained in the presence of 3-wt.% NH4F+3-wt.% carbon. The microstructure development during the reaction and the influence of these additives were determined by SEM/EDS and XRD analysis of the resulting products. A mechanism for the formation of AlN with a regular hexagonal morphology has been suggested. [Copyright &y& Elsevier]
- Subjects :
- *ALUMINUM nitride
*MICROMECHANICS
*BULK solids
*MATERIALS analysis
Subjects
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 59
- Issue :
- 19/20
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 18037841
- Full Text :
- https://doi.org/10.1016/j.matlet.2005.03.049