Indentation size effect in MgO

The indentation size effect (ISE) model of Nix and Gao overestimates the hardness of MgO for small indentations. The cause may be associated with a slight expansion of the plastic zone. If the plastic zone has an effective radius fa, experimental data indicate that f increases for small indentations...

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Journal Title: Scripta Materialia Vol. 51; no. 6; pp. 599 - 603
Authors: Gang Feng, William Nix
Format: Article
Language: English
Published: September 2004
Online Access: Full Text