Twinning Mechanism is a mechanism by which crystals can grow symmetrically by creating a mirror image of themselves, resulting in two or more crystals that are identical in their internal structure but oriented differently with respect to one … [Continue reading]
Explain the Lever Rule Concept
The lever rule is a concept in physical chemistry and materials science that is used to calculate the composition of a two-phase mixture, such as a solid-liquid or a liquid-vapor mixture, based on the relative amounts of each phase. The lever rule is … [Continue reading]
Griffith Theory of Brittle Fracture
The Griffith theory of brittle fracture, also known as the Griffith criterion or Griffith's law, is a fundamental theory that explains how and why brittle materials such as glass and ceramics fracture under stress. The theory was first proposed by … [Continue reading]
What is Rockwell Hardness Test
The Rockwell hardness test is a popular method for measuring the hardness of a material, usually metals. It involves applying a constant load to the surface of the material using a diamond or tungsten carbide indenter, and then measuring the depth of … [Continue reading]
What is Brinell Hardness Test
The Brinell hardness test is a method for measuring the hardness of a material, typically metals, by indenting the surface of the material with a hard, spherical indenter. The test was developed in Sweden by Johan August Brinell in 1900 and is widely … [Continue reading]
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