Pop-In Events and Elastic Deformation of Sapphire Single Crystal during Nanoindentation

Abstract:

Sapphire single crystal is widely used in many fields because of its excellent properties, as a focus of mechanical test, nanoindentation on sapphire is paid a great deal of attention by researchers. In this manuscript, the maximum load, depth and loading rate effects on the first pop-in event during nanoindentation of sapphire single crystal were discussed, the results indicated that these factors had no effect on the load at which the first pop-in occurred and the extension width of pop-in; the deformation below the first pop-in event was discussed and it could be roughly considered as purely elastic deformation through analyzing.

• Periodical: Advanced Materials Research (Volume 924)
• Pages: 275-280
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.924.275
• Online since: April 2014
• Authors: Rui Ke*, Yu Min Zhang, Yu Feng Zhou
• Keywords: Elastic Deformation, Nanoindentation, Pop-In, Sapphire Single Crystal

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