Atomic structural features of Pd-Ni-Cu-P glassy and supercooled liquid phases studied byin-situ Synchrotron-radiation X-ray diffractometry

摘要

Investigation of the structural changes in the supercooled liquid and metallic glassy phases on heating was performed.An ingot of Pd_(42.5)Cu_(30)Ni_(7.5)P_(20) alloy was prepared from pure metals of 99.9 mass% purity and a Pd-P master alloy using arc-melting method and then subjected to a fluxing treatment with B_2O_3. Bulk samples were produced from the fluxed ingots by copper mould casting and encapsulated under secondary vacuum (of the order of 1x 10~(-3) Pa) in a quartz container.