在高温高压(5.0 GPa、1500℃)的条件下,以Ni70 Mn25 Co5合金为烧结助剂,采用粉末混合法制备了金刚石复合片(PDC),并采用SEM及Micro-Raman spectroscopy对金刚石烧结体进行了形貌及物相测试.结果表明,由于烧结腔体存在压力、温度梯度,金刚石在经历高温高压烧结后,具有多种烧结形态及物相结构,表现为晶形完整的金刚石微晶、纳米石墨相和无定形碳.
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