Chee, K.S. and Cheng, Y.B. and Smith, M.E. (1995) The solubility of aluminium in rare earth nitrogen melilite phases. Journal of the European Ceramic Society, 15 (12). pp. 1213-1220. ISSN 0955-2219.
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The incorporation of Al into nitrogen (N-)melilite phases has recently been reported [Cheng and Thompson, J. Am. Ceram. Sec., 77, 143-48 (1994)]. This occurrence allows simultaneous substitution of Al and O through replacement of Al-O for Si-N bonds and therefore, may offer potential improvement to the oxidation resistance properties of original N-melilite, which in the past was a problem that deterred the utilization of N-melilite as a grain boundary phase for Si3N4-based ceramics. In this work, the techniques of X-ray diffraction, scanning electron microscopy with quantitative energy dispersive X-ray spectroscopy and solid state Al-27 and Si-29 nuclear magnetic resonance spectroscopy with magic angle spinning have been used to study the solubility of Al in the structure of neodymium and samarium N-melilite phases.
|Subjects:||Q Science > Q Science (General)|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts|
|Depositing User:||P. Ogbuji|
|Date Deposited:||05 Jun 2009 19:04|
|Last Modified:||24 Apr 2012 09:41|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/19755 (The current URI for this page, for reference purposes)|
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