HYDROSTATIC EXTRUSION OF BSCCO AG COMPOSITE WIRE/

The application of hydrostatic extrusion processing to composite wire fabrication offers several advantages over conventional reduction tech niques. These include enhanced uniformity, increased reduction capabil ity, and successful extrusion of normally brittle materials. Specifica lly, this work involved an experiment to screen the effects of seven e xtrusion process parameters on the uniformity and density of as-extrud ed BSCCO-core wire, and the required extrusion pressure. Results sugge st the following factors to be potentially significant: 1) back pressu re, extrusion ratio, and die angle on core uniformity, 2) packing meth od, extrusion ratio, silver powder additions, and temperature on densi ty, and 3) extrusion ratio and temperature on extrusion pressure.