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.