My ex-wife got her degree in Art and Art Education. Early marraige was a lot of art projects and kid-juggling beween my jobs and her classes.
If I recall correctly, enameling requires heat...certainly for cloisenne ?(sp?), which is glass beads melted into specific form or shapes. It may be that you'd have to make slabs for a full-tang khuk separately, then attach.
Of course, if you had a stick tang, you could make a handle separately and then slide it over and JB Weld it on...maybe... but I think you'd take it from user category to decorative.
I think you'd lose temper if you tried it after the blade was made.
Although, possibly you could do the work exactly and separately, then super-glue the repair in.
Dunno. She got the degree. I seem to remember lots of copper plate, flux of some sort, an electric kiln on the sun-porch, and maybe acid? for cleaning the copper.
Good luck.
Kis