Diamond gets harder, tougher, and more deformable

Xu Bo; Tian Yongjun

doi:10.1063/5.0029519

Volume 5 Issue 6

Nov. 2020

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Xu Bo, Tian Yongjun. Diamond gets harder, tougher, and more deformable[J]. Matter and Radiation at Extremes, 2020, 5(6): 068103. doi: 10.1063/5.0029519

Citation:

Xu Bo, Tian Yongjun. Diamond gets harder, tougher, and more deformable[J]. Matter and Radiation at Extremes, 2020, 5(6): 068103. doi: 10.1063/5.0029519

Xu Bo, Tian Yongjun. Diamond gets harder, tougher, and more deformable[J]. Matter and Radiation at Extremes, 2020, 5(6): 068103. doi: 10.1063/5.0029519

Citation:

Xu Bo, Tian Yongjun. Diamond gets harder, tougher, and more deformable[J]. Matter and Radiation at Extremes, 2020, 5(6): 068103. doi: 10.1063/5.0029519

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Diamond gets harder, tougher, and more deformable

doi: 10.1063/5.0029519

Xu Bo,
Tian Yongjun^{,
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Center for High Pressure Science (CHiPS), State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, Hebei 066004, China

More Information

Corresponding author: a)Author to whom correspondence should be addressed: fhcl@ysu.edu.cn
Received Date: 2020-09-14
Accepted Date: 2020-10-10

Available Online: 2020-11-01

Publish Date: 2020-11-15

Abstract

Abstract

Diamonds may not be forever, but research interest in diamond has never ebbed. Owing to its highly symmetric crystal structure and strong covalent C–C bonds, diamond possesses an exceptional combination of physical properties. Its hardness and thermal conductivity are the highest among covalent materials. It also has a large bandgap and electric breakdown field, as well as optical transparency over a wide range of wavelengths. All of these are essential for a wide range of applications in both industrial and scientific areas. Despite these outstanding advantages, however, diamond is extremely brittle, with inferior toughness and poor deformability. These shortcomings have caused undesired tool breakage and have imposed severe constraints on technological innovations. To surmount these intrinsic deficiencies, tremendous research effort has been dedicated to developing advanced diamond products, with great progress being achieved in the past few years.

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References(8)

References

[1]	Y. Tian, B. Xu, and Z. Zhao, “Microscopic theory of hardness and design of novel superhard crystals,” Int. J. Refract. Met. Hard Mater. 33, 93–106 (2012).10.1016/j.ijrmhm.2012.02.021 doi: 10.1016/j.ijrmhm.2012.02.021
[2]	Q. Huang, D. Yu, B. Xu, W. Hu, Y. Ma, Y. Wang, Z. Zhao, B. Wen, J. He, Z. Liu, and Y. Tian, “Nanotwinned diamond with unprecedented hardness and stability,” Nature 510, 250–253 (2014).10.1038/nature13381 doi: 10.1038/nature13381
[3]	Y. Yue, Y. Gao, W. Hu, B. Xu, J. Wang, X. Zhang, Q. Zhang, Y. Wang, B. Ge, Z. Yang, Z. Li, P. Ying, X. Liu, D. Yu, B. Wei, Z. Wang, X.-F. Zhou, L. Guo, and Y. Tian, “Hierarchically structured diamond composite with exceptional toughness,” Nature 582, 370–374 (2020).10.1038/s41586-020-2361-2 doi: 10.1038/s41586-020-2361-2
[4]	A. Banerjee, D. Bernoulli, H. Zhang, M.-F. Yuen, J. Liu, J. Dong, F. Ding, J. Lu, M. Dao, W. Zhang, Y. Lu, and S. Suresh, “Ultralarge elastic deformation of nanoscale diamond,” Science 360, 300–302 (2018).10.1126/science.aar4165 doi: 10.1126/science.aar4165
[5]	A. Nie, Y. Bu, P. Li, Y. Zhang, T. Jin, J. Liu, Z. Su, Y. Wang, J. He, Z. Liu, H. Wang, Y. Tian, and W. Yang, “Approaching diamond’s theoretical elasticity and strength limits,” Nat. Commun. 10, 5533 (2019).10.1038/s41467-019-13378-w doi: 10.1038/s41467-019-13378-w
[6]	A. Nie, Y. Bu, J. Huang, Y. Shao, Y. Zhang, W. Hu, J. Liu, Y. Wang, B. Xu, Z. Liu, H. Wang, W. Yang, and Y. Tian, “Direct observation of room-temperature dislocation plasticity in diamond,” Matter 2, 1222–1232 (2020).10.1016/j.matt.2020.02.011 doi: 10.1016/j.matt.2020.02.011
[7]	Y. Zhang, Y. Bu, J. Huang, T. Jin, A. Nie, H. Wang, and Y. Tian, “Atomic-scale observation of the deformation and failure of diamonds by in situ double-tilt mechanical testing transmission electron microscope holder,” Sci. China Mater 63, 2335-2343 (2020).10.1007/s40843-020-1373-3 doi: 10.1007/s40843-020-1373-3
[8]	J. M. Wheeler, R. Raghavan, J. Wehrs, Y. Zhang, R. Erni, and J. Michler, “Approaching the limits of strength: Measuring the uniaxial compressive strength of diamond at small scales,” Nano Lett. 16, 812–816 (2016).10.1021/acs.nanolett.5b04989 doi: 10.1021/acs.nanolett.5b04989