Analysis of residual stress around a Berkovich nano-indentation by micro-Raman spectroscopy

Autor: Lulu Ma, Huadan Xing, Qi Ding, Yuetao Han, Qiu Li, Wei Qiu
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: AIP Advances, Vol 9, Iss 1, Pp 015010-015010-5 (2019)
Druh dokumentu: article
ISSN: 2158-3226
DOI: 10.1063/1.5080179
Popis: Nano-indentation is a destructive measurement that introduces non-uniform residual stress around each nano-indentation. Herein, the residual stress distribution around a Berkovich nano-indentation on (001)- and (111)-plane silicon was studied by micro-Raman mapping. All of the in-plane stress state components around the indentation were obtained specifically for the (001)- and (111)-plane silicon based on the expanding cavity model and the Raman-mechanical relationship. Calculating the distribution regularity of the residual stress, the effect of different crystal planes and crystal orientations was further analyzed. Finally, the stress near the vertex of the indentation was revised owing to the crack.
Databáze: Directory of Open Access Journals