Dey, Arjun and Bhattacharya, Manjima and Mukhopadhyay, Anoop Kumar (2015) Grain Boundary Nanohardness of Coarse Grain Alumina. International Journal of Applied Ceramic Technology, 12 (6). pp. 1199-1209. ISSN 1546-542X

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Abstract

Here, we present the results of nanoindentation experiments conducted at ultralow peak loads of, for example, 1000, 5000, and 10,000N on a dense (similar to 99.5%), coarse grain (similar to 10m) alumina ceramic. The results showed that the nanohardness values of alumina were sensitive to the applied loads as well as to the locations of measurements, for example, the center of the grain, away from the center of the grain and at the vicinity of the grain boundary. The location sensitivity of nanohardness was linked to compositional variations of the different locations and to the presence of an amorphous phase.

Item Type:	Article
Subjects:	Engineering Materials
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	29 Dec 2015 11:28
Last Modified:	29 Dec 2015 11:28
URI:	http://cgcri.csircentral.net/id/eprint/2976

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