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Lookup NU author(s): Dr Katharine Liddell,
Emeritus Professor Derek Thompson
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Structural changes in yttrium and rare-earth sialon J-phases are reviewed as a function of the compositional parameter x in the general J-phase formula (Y,Ln)(4)Si2-xAlxO7+xN2-x. Rietveld crystal structure refinements are reported for the x=0, x=1 and x=2 members of the Yb J-phase system and these show that, whereas the end-members have the same structure as lutetium J-pbase, the x=1 composition has the structure of the slightly different lanthanum J-phase.
Author(s): Liddell K, Chua HP, Thompson DP
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: Silicates Industriels: 4th International Symposium on Nitrides
Year of Conference: 2004
Publisher: Belgian Ceramic Society
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