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State Key Laboratory of superhard materials, University of Chicago professorMa Yanming USA professor Wang Yanbin and Professor Tang Chengchun of Hebei University of Technology and others in the latest experiment, an onion boron nitride has special structure as the precursor, the successful synthesis of nano twin structures of cubic boron nitride transparent. Experimental results show that the average thickness of the material, the twin is 3.8 nm, the hardness reached or even exceeded the diamond synthetic, fracture toughness is higher than the commercial hard alloy, oxidation temperature is higher than the cubic boron nitride crystal itself. These excellent comprehensiveperformance shows that the nano twinned structure of cubic boron nitride cutting tool material will become an industry long-awaited.
业内专家认为，该研究成果突破了人们对材料硬化机制的传统认识，向人们展现了合成高性能超硬材料的新途径获得超细纳米孪晶结构。 The expert inside course of study thinks, this research breakthroughthe traditional understanding of material hardening mechanism, to show people a new way to synthesize the high performance of super hard materials to obtain ultrafine nano twin structures. ——本信息真实性未经北钻超硬材料网证实，仅供您参考 -- the information authenticity without North drilling super hard material that, only for your reference (责任编辑：admin) ( Editor: admin ) |