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Some questions in 【Metallic Glasses】---My Own Memo

已有 2754 次阅读 2013-3-13 23:06 |系统分类:科研笔记

1.Non-Additivity Effect

The average Ni-Ni and Nb-Nb distances of amorphous Ni62.5Nb37.5 are very close to their Goldschmidt diameters  in the elementary crystalline solids; while the Ni-Nb distance of 2.59 A°in the amorphous structure is shorter than the mean value (2.77 A°) of rNi-Ni and rNb-Nb, revealing a non-additivity effect.Such substantial contraction in the Ni-Nb distance by about 7% suggests strong bonding between Ni and Nb atoms in the amorphous alloy.




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