Study on the Mechanical Properties of Monocrystalline Germanium Crystal Planes Based on Molecular Dynamics.

Linsen Song, Juncheng Song, Junye Li, Tiancheng Wang, Zhenguo Zhao

Abstract read

In one paragraph

Article in Micromachines, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Linsen SongMinistry of Education Key Laboratory for Cross-Scale Micro and Nano Manufacturing, Changchun University of Science and Technology, Changchun 130022, China.

Juncheng SongMinistry of Education Key Laboratory for Cross-Scale Micro and Nano Manufacturing, Changchun University of Science and Technology, Changchun 130022, China.

Junye LiMinistry of Education Key Laboratory for Cross-Scale Micro and Nano Manufacturing, Changchun University of Science and Technology, Changchun 130022, China.ORCID 0000-0002-4881-8616

Tiancheng WangMinistry of Education Key Laboratory for Cross-Scale Micro and Nano Manufacturing, Changchun University of Science and Technology, Changchun 130022, China.

Zhenguo ZhaoMinistry of Education Key Laboratory for Cross-Scale Micro and Nano Manufacturing, Changchun University of Science and Technology, Changchun 130022, China.

Funding

Changchun science and technology program of Changchun city No. 18DY017Jilin province science and technology development program of Jilin province No.20200301040RQ

6 · The paper itself

Abstract

Nanoindentation and atomistic molecular dynamics simulations of the loading surface of monocrystalline germanium were used to investigate the evolution of the key structure, the force model, the temperature, the potential, and the deformable layer thickness. The mechanical characteristics of typical crystal planes (001), (110), and (111) of the crystal system were compared under load. It was observed that the hardness and stiffness of the (110) plane were greatest among the three crystal planes, whereas the hardness and stiffness of the (111) plane were lowest. Moreover, the deformation layers at the ends of both planes were basically flat. The processing efficiency of the (111) surface was higher; thus, the (111) surface was considered the best loading surface. It was concluded that the subsurface defects of the monocrystalline germanium (111) plane were smaller and the work efficiency was higher during the processing of monocrystalline germanium, making it ideal for monocrystalline germanium ultra-precision processing.

Indexed as

mechanical propertiesmolecular dynamicsmonocrystalline germaniumnanoindentation

Identifiers

PMID35334733

DOI10.3390/mi13030441

PMCPMC8955306

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