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超硬材料的研究是材料科学领域的一大重要课题.Cohen等在研究物质的硬度时,得出了一个半经验公式,从而预言了一种碳氮化合物p一qN;可能具有比金刚石还高的硬度~[1-3]
Superhard materials research is a major issue in the field of materials science.Cohen et al in the study of the hardness of materials, obtained a semi-empirical formula, which predicts a carbonitride p qN; may have higher than diamond Hardness ~ [1-3]