The active La in alloy powder can reduce the oxide film on Ti particles,increase the reactivity of Ti,and promote the reaction between Ti and diamond.

• 经X射线衍射分析发现,合金粉中的活性La能够还原Ti颗粒表面的氧化物薄膜,提高了Ti的活性,从而促进了Ti和金刚石的反应。