effects of the fourth component and undercooling on morphology of primary mg-zn-y icosahedral quasicrystal phase under normal casting conditions

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ID: 157550
2009
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Abstract
The paper presents some results of the investigation on effects of the fourth component (Ti, C, Sb or Cu) and undercooling on the morphology, size and forming process of primary Mg-Zn-Y icosahedral quasicrystal phase (I-phase) under normal casting conditions. The result shows that the addition of certain amount of fourth component can transform I-phase morphology from petal-like to spherical. However, I-phase will grow up to petal-like if superfl uous addition of the fourth component applied. It is also found that the solidifi ed morphology of I-phase depends on the stability of spherical I-phase during the subsequent growth, and critical radius of maintaining the spherical I-phase interface relatively stable. Further, mini-sized spherical I-phase can be produced with high content of the fourth component by undercooling. Such fi ndings are benefi cial for industrializing Mgbased quasicrystals.
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hur2009chinaeffects Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Bo-Young Hur;Zhao Weimin;Wang Zhifeng
Journal bioconjugate chemistry
Year 2009
DOI
DOI not found
URL
http://www.foundryworld.com/uploadfile/200912731258825.pdf
Keywords
morphology magnesium alloy

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