Discover Hardness Values for PCBN, Molybdenum, Tungsten Carbide, Diamond & More

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The discussion focuses on finding reliable resources for hardness values of specific materials, including Polycrystalline Boron Nitride (PCBN), Molybdenum, Tungsten Carbide, Diamond, H13 steel, Boron Carbide (B4C), Silicon Carbide (SiC), and Aluminum Oxide (Al2O3). Users mention that while www.matweb.com provides some hardness data, it lacks comprehensive information, particularly for PCBN. A suggested resource is the "Handbook of Refractory Carbides and Nitrides," which cites a Vickers hardness range of 0.08-0.09 GPa for hot-pressed boron nitride. The conversation highlights the need for more extensive databases or literature that cover these materials in detail.
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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."
 

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