Synthesis of LaCe-based bulk metallic glasses with low glass transition temperature

LaCe-based bulk metallic glasses (BMGs) with diameter up to 10 mm have been synthesized in copper mold. The BMG alloys have low glass transition temperatures, about 403 K and large supercooled liquid regions up to 58 K. The hardness of the BMG alloys is around 1.9 GPa. They also exhibit large plasticity and imprintability feature in the supercooled liquid region, which make the alloy a potential imprinting material. In addition, the BMG alloys might offer an ideal model system for the study of glass transition with a large experimentally accessible time and low temperature windows.