An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Cracking and the Indentation Size Effect for Knoop Hardness of Glasses
Published
Author(s)
George D. Quinn, P Green, K Xu
Abstract
The Knoop Hardness of five glasses as measured over a wide range of indentation loads. Hardness decreased with increasing load in accordance with the classic indentation size effect (ISE). At moderate loads, cracking dramatically altered the indentation sizes and the ISE in three of the five glasses. Cracked indentations were as much as 10 m longer than uncracked indentations made under identical conditions.
Quinn, G.
, Green, P.
and Xu, K.
(2003),
Cracking and the Indentation Size Effect for Knoop Hardness of Glasses, Journal of the American Ceramic Society
(Accessed October 2, 2023)