AVS 65th International Symposium & Exhibition
    Thin Films Division Thursday Sessions
       Session TF-ThP

Paper TF-ThP18
Crystallization Behavior and Thermal Stability of Zr-based Metallic Glasses

Thursday, October 25, 2018, 6:00 pm, Room Hall B

Session: Thin Film Poster Session
Presenter: JinKyu Lee, Kongju National University, Republic of Korea
Authors: J.S. Park, Kongju National University, Republic of Korea
D.H. Song, Kongju National University, Republic of Korea
J.K. Lee, Kongju National University, Republic of Korea
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Metallic glasses have attracted significant attention over recent year because of their unique properties such as high strength, superior magnetic properties and super-plasticity. Since the metallic glasses crystallize by a nucleation and growth process, crystallization process offers a unique opportunity of study under controlled conditions of the growth of crystals. It also provides information of the relative thermal stability of metallic glasses. As well as, study on the crystallization behavior of metallic glasses will help to control and optimize the properties of metallic glasses. Recently, for practical applications, thin film metallic glass coating by sputter deposition seems to be an alternative way for the application of metallic glass.

In this study, we report the thermal stability and crystallization behavior of Zr-based metallic glasses. Zr-based metallic glasses were fabricated by melt spinning and RF magnetron sputtering, respectively. Structural characterization of metallic glasses was investigated by X-ray diffractrometry, scanning electron microscopy and transmission electron microscopy. Thermal stability was investigated by differential scanning calorimetry during the continuous heating and isothermal annealing modes in the supercooled liquid region. Mechanical properties were determined by nano-indentation experiments using the continuous stiffness measurement method.