| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Abrasive hardness test | Mining | Test employing a rotating abrasive wheel or plate against which specimens are held. The specimens are abraded for a given number of revolutions, and the weight of material lost is a measure of the abrasive hardness. (references) | |
| Brinell hardness test | Mining | A test for determining the hardness of a material by forcing a hard steel or carbide ball of specified diameter into it under a specified load. The result is expressed as the Brinell hardness number, which is the value obtained by dividing the applied load in kilograms by the surface area of the resulting impression in square millimeters.CF:Vickers hardness test. (references) | |
| Diamond-pyramid hardness test | Mining | An indention hardness test employing a 136 degrees diamond-pyramid indenter and variable loads enabling the use of one hardness scale for all ranges of hardness from very soft lead to tungsten carbide. See also: Vickers hardness test. (references) | |
| Hardness test | Mining | A determination of the relative hardness of a mineral, such as scratch hardness, as made on a specimen, using appropriate hardness-testing apparatus and techniques. See also: hardness; hardness scale. (references) | |
| Hardness test double impression method | Metallurgy | A way of determining approximate Brinell hardness by placing a hardened steel ball between a specimen of known hardness and the metal to be tested and pressurizing them by a hammer blow or within an arbor press. Source: European Union. (references) | |
| Herbert pendulum hardness test | Engineering & Technology | A hardness test employing a pendulum with a steel ball. The ball is located on the spot to be measured and set in oscillation. The time of oscillation is measured. Source: European Union. (references) | |
| Rockwell hardness test | Metallurgy | L. thetest consists of impressing, in two operations, in the surface layer of the test piece a penetrating body of standardized type ( cone or ball ) and of measuring the permanent increase e of thom this increase 2. a test to determine hardness by indicating on a dial the depth of the impression caused by a loaded indenter in the form of either a diamond cone or a hardened steel ball. Source: European Union. (references) | |
| Rockwell hardness test | Mining | An arbitrarily defined measure of resistance of a material to indentation under static or dynamic load. (references) | |
| Scleroscope hardness test | Mining | A test to determine the hardness of metals by measuring the rebound from them of a standard diamond-tipped hammer dropped from a given height.See also:Shore hardness test; Shore scleroscope. (references) | |
| Shore hardness test | Mining | A scale of hardness of rocks as determined by the Shore scleroscope test. The scale avoids the limitation of Mohs' scale of hardness and gives better assessment of rock hardness. See also: tungsten carbide bit. (references) | |
| Tukon hardness test | Mining | A method of determining the hardness of microconstituents by using the Knoop or Vicker's type of diamond indenter. See also: microhardness; Vickers hardness test. (references) | |
| Vickers hardness test | Mining | A test of resistance to deformation of metals or minerals in which a pyramid-shaped diamond is forced into a polished surface of the specimen to be tested under various static loads. The result is a function of the average length of the diagonals of the resulting indentation. Cf: Tukon hardness test; Brinell hardness test. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
Topics by Level of Interest: HARDNESS TEST | ||||
| Topics sorted by level of Interest | Level (1=low, 600=high) | Topics sorted Alphabetically | Level (1=low, 600=high) | |
| Vickers hardness test | 9 | Knoop hardness test | 5 | |
| Knoop hardness test | 5 | Vickers hardness test | 9 | |
Source: the editor, created by/for EVE to gauge likely levels of human interest in linguistically triggered topics (compiled across various sources, such as Wikipedia and specialty expression glosses). | ||||
