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Title: Explosive boiling of a metallic glass superheated by nanosecond pulse laser ablation

We report an explosive boiling in a Zr-based (Vitreloy 1) bulk metallic glass irradiated by a nanosecond pulse laser with a single shot. This critical phenomenon is accompanied by the ejection of high-temperature matter from the target and the formation of a liquid-gas spinodal pattern on the irradiated area. An analytical model reveals that the glassy target experiences the normal heating (melting) and significant superheating, eventually culminating in explosive boiling near the spinodal limit. Furthermore, the time lag of nucleation and the critical radius of vapor bubbles are theoretically predicted, which are in agreement with the experimental observations. This study provides the investigation on the instability of a metallic glass liquid near the thermodynamic critical temperature.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [1]
  1. State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190 (China)
  2. (Germany)
  3. Key Laboratory of Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190 (China)
  4. Institute of Materials Physics, Westfälische Wilhelms-Universität Münster, Münster 48149 (Germany)
Publication Date:
OSTI Identifier:
22399095
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABLATION; BOILING; BUBBLES; CRITICAL TEMPERATURE; IRRADIATION; LASER RADIATION; LASERS; LIQUIDS; MELTING; METALLIC GLASSES; NUCLEATION; PULSED IRRADIATION; SUPERHEATING; TEMPERATURE DEPENDENCE; VAPORS; ZIRCONIUM BASE ALLOYS