CaLi-based bulk metallic glasses with multiple superior properties

We describe a class of metallic glasses that consists of low- cost components and exhibiting multiple superior properties such as exceptionally low glass transition temperature (similar to 35-60 degrees C) ultralow elastic moduli (similar to 23 GPa) comparable to that of human bones, high elasticity and strength, ultralow density (< 2 g/cm(3)), exceptional thermodynamic and kinetic stability in supercooled liquid state, strong liquid fragility, ultrahigh specific strength and lower electrical resistivity, and polymerlike thermoplastic formability near room temperature. Such metallic glasses could have potential applications and facilitate studies of the nature of glasses. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.2998262]