Bulk Metallic Glasses, Synthesis, Thermal and Mechanical Characterizations

Jean-Louis Soubeyroux (1) , Jean-Jacques Blandin (2) , Marc Bletry (3) , Pierre Guyot (3) , Jean-Marc Pelletier (4)

1 Laboratoire de Cristallographie
2 GPM2 - Génie physique et mécanique des matériaux
3 LTPCM - Laboratoire de thermodynamique et physico-chimie métallurgiques
4 MATEIS - Matériaux, ingénierie et science [Villeurbanne]

The synthesis, the thermal and mechanical properties of new bulk metallic glasses are presented. The systems Zr-Ti-Cu-Ni-Al, Zr-Ti-Cu-Ni-Be and Mg-Cu-RE have drawn our particular attention due to the possibilities of applications in various fields. Synthesis is mainly done by HF melting and quenching in cooled copper moulds of various shapes (cylinders, plates, cones). Characterizations are done by X-ray and neutron diffraction, electron microscopies and differential scanning calorimetry techniques. The in situ powder neutron diffraction has been demonstrated as a powerful technique for the determination of the different phases appearing during crystallization. Mechanical properties have been determined by compression tests as a function of temperature. The effects of partial nanocrystallization and of a composite phase are investigated.

Mots clés: bulk metallic glasses

Domaines: Matériaux

Jean-Louis Soubeyroux, Jean-Jacques Blandin, Marc Bletry, Pierre Guyot, Jean-Marc Pelletier. Bulk Metallic Glasses, Synthesis, Thermal and Mechanical Characterizations. Processing and Fabrication of Advanced Materials XIII, Dec 2004, Singapore, Singapore. pp.26-39. ⟨hal-00264951⟩