Review on Research and Development of Abrasive Scratching of Hard Brittle Materials and Its Underlying Mechanisms

Hard brittle materials such as ceramics and crystals are commonly utilized in various industries, including information technology, mechanical engineering, and semiconductors. These materials, known for their high brittleness and hardness but low fracture toughness, pose challenges in efficient and...

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Bibliographic Details
Published in:Crystals (Basel) 2023-03, Vol.13 (3), p.428
Main Authors: Qian, Huina, Chen, Mengkai, Qi, Zijian, Teng, Qi, Qi, Huan, Zhang, Li, Shan, Xiaohang
Format: Article
Language:English
Subjects:
Abrasive machining
abrasive scratching
Approximation
Brittle materials
brittle–ductile transition
ceramics and crystals
China
Crack propagation
Cracks
Damage
Deformation
Experiments
Fine grinding
Fracture mechanics
Fracture toughness
Grinding
hard brittle materials
Hardness
Industrial research
Load
Machining
Mechanical engineering
Mechanical properties
Nucleation
Polishing
Process parameters
Propagation
R&D
Research & development
Rough grinding
Scratching
surface integrity
Surface properties
Workpieces
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Summary:Hard brittle materials such as ceramics and crystals are commonly utilized in various industries, including information technology, mechanical engineering, and semiconductors. These materials, known for their high brittleness and hardness but low fracture toughness, pose challenges in efficient and high-quality machining. Current abrasive machining techniques involve rough grinding, fine grinding, and polishing processes, with the latter being the most time-consuming and accounting for over half of the total machining time. Improving processing parameters in rough and fine grinding can increase machining efficiency, reduce surface and subsurface damage, and improve workpiece quality, ultimately reducing the polishing time. This paper explores the abrasive scratching of hard brittle materials, examining the nucleation and propagation of cracks causing surface and subsurface damage, and the underlying mechanisms. The research provides suggestions for enhancing abrasive machining efficiency and ensuring the surface quality of hard brittle materials.
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst13030428