期刊
PHYSICAL REVIEW LETTERS
卷 86, 期 25, 页码 5735-5738出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.86.5735
关键词
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Wetting of the Sigma = 5 (310) (001) symmetrical tilt grain boundary (GB) close to the solubility Limit in the Cu(Ag) solid solution has been observed by means of Monte Carlo simulations at T = 600 K. More precisely, a finite thickness film almost pure in Ag, separating the two initial Cu(Ag) grains, can be obtained from a critical intergranular germ induced by the strong segregation of Ag in the GB. As this film is actually a single crystal,, this implies a complete rearrangement of the GB core structure. Thus the initial GB is replaced by two eu(Ag)/Ag(Cu) interfaces. Evidence is presented for the increase of the film thickness when approaching the solubility limit, as expected in wetting phenomena.
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