Enthalpy for mixing of Cu La and Pd Sn binary systems were predicted by Miedema model. The agreement between the predicting results and the experimental data shows that such model is suitable for not only ferrous me...Enthalpy for mixing of Cu La and Pd Sn binary systems were predicted by Miedema model. The agreement between the predicting results and the experimental data shows that such model is suitable for not only ferrous metal systems, but also rare earth elements and nonferrous metals.展开更多
We report the formation of La Ga-based bulk metallic glasses. Ternary La–Ga–Cu glassy rods of 2–3 mm in diameter can be easily formed in a wide composition range by the conventional copper mold casting method. With...We report the formation of La Ga-based bulk metallic glasses. Ternary La–Ga–Cu glassy rods of 2–3 mm in diameter can be easily formed in a wide composition range by the conventional copper mold casting method. With minor addition of extra elements such as Co, Ni, Fe, Nb, Y, and Zr, the critical diameter of the full glassy rods of the La–Ga–Cu matrix can be markedly enhanced to at least 5 mm. The characteristics and properties of these new La Ga-based bulk metallic glasses with excellent glass formation ability and low glass transition temperature are model systems for fundamental issues investigation and could have some potential applications in micromachining field.展开更多
文摘Enthalpy for mixing of Cu La and Pd Sn binary systems were predicted by Miedema model. The agreement between the predicting results and the experimental data shows that such model is suitable for not only ferrous metal systems, but also rare earth elements and nonferrous metals.
基金supported by the National Natural Science Foundation of China(Grant Nos.51571209 and 51461165101)the National Basic Research Program of China(Grant No.2015CB856800)the Key Research Program of Frontier Sciences,Chinese Academy of Sciences(Grant No.QYZDY-SSW-JSC017)
文摘We report the formation of La Ga-based bulk metallic glasses. Ternary La–Ga–Cu glassy rods of 2–3 mm in diameter can be easily formed in a wide composition range by the conventional copper mold casting method. With minor addition of extra elements such as Co, Ni, Fe, Nb, Y, and Zr, the critical diameter of the full glassy rods of the La–Ga–Cu matrix can be markedly enhanced to at least 5 mm. The characteristics and properties of these new La Ga-based bulk metallic glasses with excellent glass formation ability and low glass transition temperature are model systems for fundamental issues investigation and could have some potential applications in micromachining field.
