ANDREW BROOKES, NATIONAL PHYSICAL LABORATORY / SCIENCE PHOTO LIBRARY ANDREW BROOKES, NATIONAL PHYSICAL LABORATORY / SCIENCE PHOTO LIBRARY
Nanoindenter for hardness testing. This nanoindenter (bottom) determines a material's hardness by measuring its resistance to forces exerted on it by a harder material. It uses a fine tip made from a very hard material, such as diamond, to produce an indentation that is only a few nanometres (billionths of a metre) in size. An atomic force microscope (AFM, top) is then used to examine how the test material has responded to the exerted forces Photographed at the National Physical Laboratory, Teddington, UK.
Model release not required. Property release not required.