Study on Brittle-Ductile Transition Mechanism of Ultra-Precision Turning of Single Crystal Silicon
According to the size effect theory established on the concept of geometrically necessary dislocations and results of nano-indentation experiments, a novel brittle-ductile mechanism of ultra-precision turning of single crystal silicon is proposed. The accurate critical chip thickness is firstly calculated on the basis of theoritical analysis. A macro-micro cutting model is created based on the brittle-ductile transition mechanism. Finally, the results of study are testified through experiments.
Yingxue Yao, Xipeng Xu and Dunwen Zuo
M. H. Wang, Z. S. Lu, "Study on Brittle-Ductile Transition Mechanism of Ultra-Precision Turning of Single Crystal Silicon ", Key Engineering Materials, Vols. 375-376, pp. 11-16, 2008