Intermetallic Compounds. Crystal Structures of Intermetallic by J. H. Westbrook, R. L. Fleischer

By J. H. Westbrook, R. L. Fleischer

This can be one among 4 volumes, every one of which is composed of reprinted chapters from the two-volume set , released in 1995. at times the authors have additional a short addendum to convey details brand new, and in different instances more moderen references were additional. Following the listings of acronyms and crystal constitution nomenclature, the ten contributions care for many of the crystal constructions in all metal-metal compounds, either ordered and disordered, binary and multicomponent. Edited through Westbrook (Brookline applied sciences) and Fleischer (Union College).

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Extra info for Intermetallic Compounds. Crystal Structures of Intermetallic Compounds, Edition: 2nd

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In the ccc Cu structure, must be strong enough to stabilize the atoms of the third layer at the proper position. The Sm atoms of chhchhchh structure must be stabilized in the ninth layer. An interaction between metal atoms with directional bonding can also be deduced from the distortion of some crystal structures. 63. p. 89 for Zn and Cd, respectively (Pauling, 1945, 1960; Wyckoff, 1964; Laves, 1967). The distance between layers is also increased in cubic close-packed Hg, Po, and Te with the rhombohedral angle a = 71 -103 ° instead of a = 60° (Villars and Calvert, 1986).

The 202;2 and 322;2 structures of Figure 7 consist of single and double Segregation' Figure 8. ax, a2 structural map of hexagonal single-layer structures Tx T2T2;y/x and surface structures /, Xl2 rows of M atoms, respectively. The size of the M and N clusters is increased to complete segregation of M and N atoms in the 444;(1) structure. g. Coulomb repulsion. p. metals (MacLaren et aL, 1987). The occupation of the surface of metal atoms with gas molecules depends on the size of the gas molecules, the equilibrium gas pressure, and the interaction between the molecules.

G. the (ch)2 La structure, or by formation of ordered structures (o) (Figure 17). g. AuCu3 or CuAu, are usually highly symmetric. g. ZrAl3, CuAu II or ZrGa2 (Figure 14). The symmetry of these structures is usually lower because of the different symmetry elements of the structural subunits. The populations of the different structure types obey Pauling's rule of parsimony: the number of essentially different kinds of constituents in a crystal tends to be small (Pauling, 1929). p. p. g. CuAu II, ZrGa2 or Mo3Al8, are rare.

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