If you use steel cores for your bits, you can go ahead and braze the segments on. I have done this on steel core drill bits with the same type of segments. The segments, and a high silver content brazing rod, say 15% silver and up, will bond those segments to steel fairly easy if you have a little brazing experience and use the right flux. Those segments, if properly applied, would outlast the diamond impregnated copper sheets by over 100 times.