APPLICATION OF AMORPHOUS FILLER METALS IN PRODUCTION OF FUSION-REACTOR HIGH HEAT-FLUX COMPONENTS

Amorphous ribbon-type filler metals represent a promising facility for fastening heterogeneous materials together. The advantage results fro m the homogeneity of element and phase compositions and the strictly s pecified geometrical dimensions of such fillers. Amorphous fillers Zr- Ti-Fe-Be, Zr-Ti-Ni-Cu and Ti-Zr-Ni-Cu and microcrystalline fillers Al- Si and Cu-Sn-Mn-In-Ni were produced by quenching at a rate of about 10 (6) K s(-1). Brazing of graphite with metals (Cu + MPG-6, Cu + RGT, Mo + MIG-1, V + MIG-1, V + RGT) was accomplished using ribbon-type fille rs. Two types of metal-based samples were produced in the form of plat es and rakes. The rakes were made by brazing three small graphite bars to the metal, the 2 mm space between the bars being 0.25 of the bar h eight. The results of metallographic studies of the brazing zone and o f tests on brazed structures treated by pulsed energy fluxes are discu ssed.