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Laves phase Metallurgy.|ˈlɑːvəs feɪz|
[ad. G. Laves-phase (G. E. R. Schulze 1939, in Zeitschr. f. Elektrochem. XLV. 850/1), f. the name of Fritz-Henning Laves (b. 1906), German crystallographer + phase n.]
Any of a group of intermetallic compounds of composition approximately AB2 in which the relative sizes of the A and B atoms are such as to allow a stable packing arrangement with unusually high co-ordination numbers.
1940Chem. Abstr. XXXIV. 1895 Laves phases are AB2 intermetallic compds. whose structure and combination mechanism are detd. by the crystal lattice. 1956Hume-Rothery & Raynor Struct. Metals & Alloys (ed. 3) v. 228 The Laves phases crystallize in one of three closely related structures, and are isomorphous with the compounds MgCu2, MgZn2, or MgNi2. 1967A. H. Cottrell Introd. Metall. xiv. 195 In a Laves phase AB2, each A atom has 16 neighbours (4A and 12B) and each B atom has 12 neighbours. |