Figure 1: Onion carbon nanoparticles and a bulk sample synthesized at 10 GPa and 1,850 °C. Figure 2: A nt-diamond bulk sample synthesized at 20 GPa and 2,000 °C. Figure 3: Typical mechanical ...

It’s only a matter of time before a movie villain pulling off the crime of the century needs a cutting tool that is harder than anything else on Earth. Perhaps it’s a burglary that involves cutting ...

Hardness Testing is applied to a great number of materials, and for over 250 years, it has been an invaluable and frequently used mechanical test. A variety of hardness tests can be used to establish ...

The hardness of a material is defined as its resistance to another material penetrating its surface and is related to its wear resistance and strength. Higher hardness is related generally related to ...