Finding hardness values for PCBN, tungsten carbide, and other tool materials

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engineer23
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Is there a website or book that lists hardness values for the following:

Polycrystalline Boron Nitride
Molybdenum
Tungsten Carbide
Diamond
h13
B4C
SiC
Al2O3

I've tried www.matweb.com, but they only have hardness values for some of these materials. I can't locate PCBN in their database either.

Thanks for any help!
 

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You could try the Handbook of Refractory Carbides and Nitrides. They quote a Vickers hardness of 0.08-0.09 GPa for "hot-pressed boron nitride."