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A STANDARD REFERENCE MATERIAL FOR VICKERS HARDNESS OF CERAMICS AND HARDMETALS

George D. Quinn, Robert Gettings, and Lewis K. Ives

Abstract

Standard Reference Material (SRM) 2831 was developed to improve Vickers hardness testing of Ceramics and Hardmetals. It may be used with conventional hardness testing machines that make indentations that are measured with an optical microscope. The SRM is a hot-isostatically pressed tungsten carbide with 12 % cobalt disk which has five indentations made at a load of 9.8 N (1 kgf). Each SRM is individually certified for the size of each of the 5 indentations, the average diagonal length ( 35.0 m), and the average hardness HV1. The HV1 is nominally 15 GPa which is in middle of the hardness range for most ceramics and cutting tool carbides.

Keywords
Vickers hardness, ceramics, standard reference material, tungsten carbide
Download
IMEKO-TC5-2004-018.pdf
DOI
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IMEKO TC
TC5 - Hardness Measurement

Event details

Event
Hardness Measurements Theory and Application in Laboratories and Industries
Technical Committee
TC5
Place
Washington, DC, USA
Download
hardmeko_2004-reg_form.pdf
Time
11 November 2004 - 12 November 2004

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