Hardness
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In materials science, hardness is a measure of the resistance to localized plastic deformation, such as an indentation or a scratch, induced mechanically either by pressing or abrasion. In general, di
A Vickers hardness tester
A representation of the crystal lattice showing the planes of atoms
Superhard material
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A superhard material is a material with a hardness value exceeding 40 gigapascals when measured by the Vickers hardness test. They are virtually incompressible solids with high electron density and hi
Hardness
…plasticity, strain, strength, toughness, viscoelasticity, and viscosity. Common examples of hard matter are ceramics, concrete, certain metals, and superhard materials, which can be contrasted with soft matter. There are three main types of hardness measurements: scratch, indentation, and rebound. Within each of these…
A nanoindenter, used to measure the hardness and related properties of materials
Diamond and graphite materials and structure