Abstract

In this paper we present a new diamond synthesis method via introduction of highly reactive carbon atoms generated from chemical reactions as the raw materials of diamond. Experiments have shown that by this method the diamond can be synthesized with high yield at pressures as low as 3 GPa and temperatures as low as 900°C. Compared with the conventional phase transformation method, the pressure decreases by about 45% and the temperature decreases by about 35%. XRD, Raman spectroscopy and other characterization analyses have shown that the crystal structure of the diamond synthesized is perfect and the impurity content is low. This is a promising method of diamond synthesis, but requires further optimization.

中文翻译：

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较低压力和较低温度下化学反应合成金刚石

摘要

在本文中，我们通过引入化学反应产生的高活性碳原子作为金刚石原料，提出了一种新的金刚石合成方法。实验表明，通过这种方法，可以在低至 3 GPa 的压力和低至 900°C 的温度下以高产率合成金刚石。与常规相变方法相比，压力降低约45%，温度降低约35%。XRD、拉曼光谱等表征分析表明，合成的金刚石晶体结构完美，杂质含量低。这是一种很有前景的金刚石合成方法，但需要进一步优化。