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Researchers developed a new method to create bulk metallic glasses (BMGs) and composites from metallic glass ribbons. This ultrasonic vibration technique enables bonding below the glass transition temperature, overcoming size and property limitations.

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Area of Science:

  • Materials Science and Engineering
  • Condensed Matter Physics

Background:

  • Designing bulk metallic glasses (BMGs) with superior properties is a significant challenge.
  • Scaling up the size and enhancing the properties of metallic glasses for technological applications remain key hurdles.

Purpose of the Study:

  • To develop a facile and flexible route for synthesizing bulk metallic glasses (BMGs) and metallic glass-glass composites.
  • To overcome the limitations of traditional methods in terms of size and composition.

Main Methods:

  • Utilizing ultrasonic vibrations to activate atomic-scale stress relaxation in an ultrathin surface layer.
  • Facilitating atomic bonding between metallic glass ribbons at temperatures significantly below the glass transition point.

Main Results:

  • Successfully synthesized BMGs and metallic glass-glass composites from metallic glass ribbons.
  • Achieved rapid bonding of metallic glasses with distinct properties without inducing crystallization.
  • Demonstrated a method that overcomes traditional size and compositional limitations.

Conclusions:

  • The developed ultrasonic vibration method offers a versatile approach to BMG synthesis and the creation of novel glass-glass composites.
  • This technique opens possibilities for BMGs with extended compositions and multifunctional composite materials.
  • The findings pave the way for new advancements in metallic glass technology and materials discovery.