Damage evolution and removal behaviors of GaN crystals involved in double-grits grinding
Chen Li, Yuxiu Hu, Zongze Wei, Chongjun Wu, Yunfeng Peng, Feihu Zhang, Yanquan Geng
Abstract
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.
Topics & Concepts
GrindingMaterials scienceAbrasiveAmorphous solidMolecular dynamicsTransverse planeComposite materialStacking faultDislocationStackingCondensed matter physicsCrystallographyStructural engineeringPhysicsChemistryEngineeringComputational chemistryNuclear magnetic resonanceAdvanced Surface Polishing TechniquesAdvanced machining processes and optimizationMetal and Thin Film Mechanics