Description of the Nanoindentation Unloading Behavior of Brittle Ceramics with a Modified Surface

Abstract:

The nanoindentation unloading behavior of some brittle ceramics with modified surfaces was analyzed. It was found that the unloading data may be described well with a quadratic polynomial. The physical meaning of the quadratic polynomial in describing the nanoindentation unloading behavior was then discussed by considering the effect of residual contact stress on the force-displacement relationship. It was suggested that the quadratic polynomial may be considered as a modified form of the basic forcedisplacement relationship for the contact of an isotropic elastic half-space by a rigid conical punch.

• Periodical: Key Engineering Materials (Volumes 336-338)
• Pages: 2422-2425
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.336-338.2422
• Online since: April 2007
• Authors: Zong Huai Li, Jiang Hong Gong, Zhi Jian Peng, He Zhuo Miao
• Keywords: Ion Implantation, Nanoindentation, Residual Stress

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