Examination of Copper or Nickel Coats W-Base Composites.

摘要

Tungsten-base composites coated with either nickel or copper were heat-treated at elevated temperatures to produce a diffusion bond between the composite and the coat. At temperatures to 473 K,no diffusion bond was achieved and there was no improvement in low-temperature ductility. At temperatures above 920 K,the coat and base bonded and the ductility was improved. Microprobe analysis confirmed that a diffusion bond formed. (ERA citation 03:024635)