Knoop hardness test
Knoop hardness test The Knoop hardness test is a microhardness test - a ...
http://en.wikipedia.org/wiki/Knoop_hardness_test - 3k - Cached - Similar pages

Vickers hardness test
Vickers hardness test The Vickers hardness test was developed in the early 1920s and ... various size are applied, depending on the hardness of the material to be measured. ...
http://en.wikipedia.org/wiki/Vickers_hardness_test - 1k - Cached - Similar pages

Brinell hardness test
Brinell hardness test The Brinell scale characterises the indentation hardness of materials through the scale of penetration ... of an indenter, loaded on a material test-piece. It is one of several definitions of hardness in materials science. Brinelling refers to ...
http://en.wikipedia.org/wiki/Brinell_hardness_test - 5k - Cached - Similar pages

Hardness   (translated from German)
Hardness Hardness is the mechanical resistance, which a body ... the penetration of another, harder body. The hardness of a body permits conclusions on various ... milling head or turning tool is the hardness of special importance, because hard cuts remain ... accent setting finds the term of the hardness in that Solid-state physics, that ...
http://de.wikipedia.org/wiki/Härte - 28k - Cached (German) - Wikipedia (German) - Similar pages

Hardness
Hardness For the mathematical concept of the difficulty ... etc., see computational complexity theory. For water hardness, see hard water. In materials science, hardness is the characteristic of a solid material expressing its resistance to permanent deformation. Hardness can be measured on the Mohs scale ... There are three principal operational definitions of hardness: Scratch hardness Indentation hardness Rebound, dynamic ...
http://en.wikipedia.org/wiki/Hardness - 7k - Cached - Similar pages

Talk:Mohs scale of mineral hardness
Talk:Mohs scale of mineral hardness Question: if the scale isn't linear ... to use? And what exactly is 'absolute hardness'? How is hardness defined (we know what it is intuitively ... physical definition?) Are there SI units for hardness? -- SJK There is no absolute hardness scale. No units for hardness either. ...
http://en.wikipedia.org/wiki/Talk:Mohs_scale_of_mineral_hardness - 4k - Cached - Similar pages

Rockwell scale
... scale The Rockwell scale characterises the indentation hardness of materials through the depth of penetration ... It is one of several definitions of hardness in materials science. It is typically used ... the "B", and "C" scales. Both express hardness as an arbitrary dimensionless number. The B ... specimens. Good practice includes: Cleaning indenter and test-piece to be clear of dirt, grease ... correction factors" are invoked to adjust for test-piece curvature); Ensuring that the thickness ...
http://en.wikipedia.org/wiki/Rockwell_scale - 4k - Cached - Similar pages

Nanoindentation
Nanoindentation Indentation tests, sometimes called hardness tests , are perhaps the most commonly applied ... origins in the Mohs scale of mineral hardness, in which materials are ranked according to ... order to develop techniques for evaluating material hardness over a continuous range. Hence, the adoption of the Meyer, Knoop, Brinell, Rockwell, and Vickers hardness tests. More recently (ca. 1975), the ...
http://en.wikipedia.org/wiki/Nanoindentation - 5k - Cached - Similar pages

Silicon carbide   (translated from German)
... green. Density: 3,217 g/cm 3 Hardness: 9,6 (Mohs); 2600 (Vickers, Knoop) Silicon carbide is approximately also at high ... relatively oxidation-steadily. It shows a high hardness, good heat guidance ability (pure SiC approx ... the technology Silziumcarbid finds due to its hardness and the high melting point application as ... manufacture for spacecraft. The last large practice test found with the project Shefex (sharp ...
http://de.wikipedia.org/wiki/Siliziumcarbid - 9k - Cached (German) - Wikipedia (German) - Similar pages