Despite the fact that Fe, Co, and Ni catalyze the phase transition of diamond into graphite, the question of the applicability of diamond as a functional coating of a metal-cutting tool is still open. For this reason, our work contains investigation of wear and friction of heavily boron doped diamond films against steel at elevated temperature, as well as influence of boron concentration on diamond film oxidation resistance. The obtained data indicated that minimum CoF value is achieved in the temperature range within 570–670 °C and strongly depends on boron concentration in coating (CoF decreases with increasing of boron concentration). Wear rate has the same dependence as the CoF, whereas oxidation resistance decreases with increasing of boron concentration. Besides, the presented results are first obtained for boron doped diamond films synthesized under high B/C ratio conditions (of up to 333 ppb).

尽管Fe，Co和Ni催化了金刚石向石墨的相变，但是金刚石作为金属切削刀具功能涂层的适用性问题仍然存在。因此，我们的工作包括在高温下研究重掺杂硼的金刚石膜对钢的磨损和摩擦，以及硼浓度对金刚石膜抗氧化性的影响。获得的数据表明，最小的CoF值是在570-670°C的温度范围内达到的，并且在很大程度上取决于涂层中的硼浓度（CoF随着硼浓度的增加而降低）。磨损率与CoF具有相同的依赖性，而抗氧化性随硼浓度的增加而降低。除了，