Peculiar surface deformation of sapphire: Numerical simulation of nanoindentation

R. Nowak; T. Manninen; K. Heiskanen; T. Sekino; A. Hikasa; K. Niihara; T. Takagi

doi:10.1063/1.1635983

Peculiar surface deformation of sapphire: Numerical simulation of nanoindentation

R. Nowak, T. Manninen, K. Heiskanen, T. Sekino, A. Hikasa, K. Niihara, T. Takagi

Institute of Multidisciplinary Research for Advanced Materials (IMRAM)

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

The numerical simulation of nanoindentation was used for studying the mechanism of surface deformation of sapphire. The nanoindentation experiments were conducted on (101̄0) and (001) planes of the Al₂O ₃ crystal. The stress under the tip that penetrated in the (101̄0) and (0001) planes was analyzed using three-dimensional finite element simulation of the contact between spherical indenter and elastically anisotropic solid. The results show that the surface features reflected the distribution of stress.

Original language	English
Pages (from-to)	5214-5216
Number of pages	3
Journal	Applied Physics Letters
Volume	83
Issue number	25
DOIs	https://doi.org/10.1063/1.1635983
Publication status	Published - 2003 Dec 22

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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AU - Manninen, T.

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AU - Sekino, T.

AU - Hikasa, A.

AU - Niihara, K.

AU - Takagi, T.

PY - 2003/12/22

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AB - The numerical simulation of nanoindentation was used for studying the mechanism of surface deformation of sapphire. The nanoindentation experiments were conducted on (101̄0) and (001) planes of the Al2O 3 crystal. The stress under the tip that penetrated in the (101̄0) and (0001) planes was analyzed using three-dimensional finite element simulation of the contact between spherical indenter and elastically anisotropic solid. The results show that the surface features reflected the distribution of stress.

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Peculiar surface deformation of sapphire: Numerical simulation of nanoindentation

Abstract

ASJC Scopus subject areas

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