High frequency dynamics of BMG determined by synchrotron radiation: A microscopic picture

JOURNAL OF ALLOYS AND COMPOUNDS

卷:495

Article; Proceedings Paper

Serrano, Jorge^1,2  Pineda, Eloi³  Bruna, Pere²  Labrador, Ana⁴  le Tacon, Mathieu⁵  Krisch, Michael⁵  Monaco, Giulio⁵  Crespo, Daniel² 

[1] Univ Politecn Cataluna, ICREA, Castelldefels 08860, Spain

[2] Univ Politecn Cataluna, Dept Fis Aplicada, EPSC, Castelldefels 08860, Spain

[3] Univ Politecn Cataluna, Dept Fis & Engn Nucl, ESAB, Castelldefels 08860, Spain

[4] BM16 ESRF, LLS, F-38043 Grenoble 9, France

[5] European Synchrotron Radiat Facil, F-38043 Grenoble 9, France

关键词: Metallic glasses;    Rapid-solidification;    Quenching;    Mechanical properties;    Inelastic X-ray scattering;   

DOI  :  10.1016/j.jallcom.2009.10.250

来源: Elsevier

【 摘 要 】

Mechanical properties are becoming the focus in research on bulk metallic glasses (BMG). as they are the limiting factor for structural applications. A wide range of experimental techniques gives complementary macroscopic data that are often difficult to correlate with the microscopic structural knowledge of the same materials Recently, high resolution inelastic X-ray scattering (IXS) was applied to determine the high frequency dynamics of BMG [T Scopigno, J -B Suck, R. Angelini, F Albergamo, G Ruocco, Phys Rev Lett 96 (2006) 135501] This technique offers a new approach to the mechanic properties helping to bridge the gap between the microscopic and the macroscopic picture Here we will present results of IXS experiments on bulk metallic glasses with different fragility values. obtained at the European Synchrotron Radiation Facility (ESRF) in Grenoble (France) (C) 2009 Elsevier B V All rights reserved

【 授权许可】

Free