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Nano-devitrification of glassy alloys
Dmitri V Louzguine-Luzgin1, Akihisa Inoue
1Institute for Materials Research, Tohoku University, Katahira 2-1-1, Aoba-Ku, Sendai 980-8577, Japan.
Journal of Nanoscience and Nanotechnology
|August 20, 2005
Summary
Heating metallic glassy and amorphous alloys causes nano-devitrification, forming nanoscale crystalline or quasicrystalline particles. This process can create nanocomposites with superior mechanical properties compared to conventional alloys.
Area of Science:
- Materials Science
- Metallurgy
- Nanotechnology
Background:
- Metallic glassy and amorphous alloys are known for unique properties.
- Understanding their behavior upon heating is crucial for material design.
- Devitrification processes can alter alloy characteristics significantly.
Purpose of the Study:
- To provide a comprehensive overview of nano-devitrification in metallic glasses.
- To summarize data on the formation of nanoscale crystalline and quasicrystalline particles.
- To explore the impact of nano-devitrification on alloy properties.
Main Methods:
- Literature review and data synthesis.
- Analysis of experimental data on heating metallic alloys.
- Characterization of nanoscale particle formation.
Main Results:
- Nano-devitrification of metallic glasses upon heating forms nanoscale crystalline or quasicrystalline particles.
- The size and type of particles depend on alloy composition and heating conditions.
- Formation of nanocomposites with enhanced mechanical properties is observed in some alloys.
Conclusions:
- Nano-devitrification is a key phenomenon in metallic glasses.
- The resulting nanocomposites offer improved mechanical performance.
- Further research into controlling nano-devitrification can lead to advanced materials.