Damage evolution and removal behaviors of GaN crystals involved in double-grits grinding

Highlights Molecular dynamics simulation of double-grits interacted grinding of GaN crystals is performed. Interacted distance with both radial and transverse directions is better than that with only one direction or single-grit grinding. Girt-interactions decrease force, friction coefficient, stress, damage depth, and abrasive wear. Amorphous, phase transition, dislocation, stacking fault and lattice distortion dominate plastic damage.

• NN
  National Natural Science Foundation of China

  Award: 52375420
• CP
  China Postdoctoral Science Foundation

  Award: 2022T150163
• NS
  Natural Science Foundation of Heilongjiang Province

  Award: YQ2023E014
• SK
  State Key Laboratory of Robotics and System

  Award: SKLRS-2022-ZM-14
• FR
  Fundamental Research Funds for the Central Universities

  Award: HIT.OCEF.2022024