By making a comparison of structures and properties between vacuum sintered hardmetal and sinter-HIPed ones, the advantage of sinter-HIPing process was proved.

• 比较了添加有晶粒生长抑制剂的纳米复合粉末以真空烧结和低压烧结制得的硬质合金的显微结构和性能，证实了低压烧结的优越性。