Formation of bulk metallic glass by fluxing

Abstract

Bulk specimens (0.4–4 g mass) of the alloy Pd40Ni40P20 have been undercooled consistently to the glass state, with no detectable superficial crystallinity, in a molten flux of dehydrated boron oxide. The minimum dimension of the most massive glass specimen, so formed, was 1.0 cm. The absence of crystallinity in the specimens was confirmed by x-ray diffraction, scanning electron microscopy, and calorimetry.