Superior mechanical and thermal properties than diamond: Diamond/lonsdaleite biphasic structure

Bo Yang, Xianghe Peng, Yinbo Zhao, Deqiang Yin, Tao Fu, Cheng Huang

Table 1 Geometric parameters and elastic parameters of diamond, lonsdaleite, cBN and wBN.

Systems Geometric parameters (?) Elastic parameters (GPa) B0 E100 E110 E111 G100 G111-110 Diamond a = b = c = 3.575 434 1026 1128 1166 555 491 cBN a = b = c = 3.625 376 948 952 873 444 341 B0 Ep Ev Lonsdaleite a = b = 2.514, c = 4.184 483 1285 1173 wBN a = b = 2.554, c = 4.225 374 1009 909