Until now, many methods have been applied in the preparation of nanosized WC-Co powder, but it is difficult to get nanocrystalline WC-Co cermet by sintering.

• 但是迄今为止，研究者虽然可以通过各种方法制备纳米WC-Co粉末，却在烧结制备纳米晶WC-Co硬质合金方面遇到了很多困难。