grain size


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grain size

[′grān ‚sīz]
(geology)
Average size of mineral particles composing a rock or sediment.
(graphic arts)
Average size of silver halide grains in a photosensitive material.
(metallurgy)
Average size of grains in a metal expressed as average diameter, or grains per unit area or volume.

grain size

A measure of the size of mineral particles of soil or rock; a physical characteristic of the particles of a soil which affects its mechanical properties; used in classification and identification.
References in periodicals archive ?
Parking construction - foundation from broken aggregate - bottom layer with a thickness after compaction of 20cm grain size acc.
The grain size of the pallets was found to increase as a function of sintering temperature for the samples whereas grain size has decreased as a function of La doping.
When the austenitization temperature and the effect of suppressing the growth of austenite grains are also added, it is presumed that the grain size becomes finer [3].
The sintered ZnO ceramics synthesized using the CIP method showed a significant difference in the grain size at the center and the outer regions irrespective of the direction of the cross section.
Different grain size mixtures are randomly distributed within the coal roof, wall, and pillar of a coal seam in the western China mining area where the overlying rock structures for most of the main coal seams are typically at shallow depths and are overlaid by thick sand layers and underlaid by thin bedrock, which poses substantial safety issues for mining operations.
We extracted 2141 sediment samples of grain size from the borehole based on a 2 cm interval.
For example, in nc-Cu [12,13], nc-Fe [14], andnc-Ni [15], a significant decrease of elastic moduli with decreasing grain size was reported.
The selected area is a fine plain stream segment of the lower reaches of the Golmud River where the difference in grain size is very small.
While the effect of grain size reduction on the strength of metallic materials has been well established, its effect on corrosion is more complicated and does not appear to be explainable using a universal law such as the Hall-Petch law of the yield stress.
Microscopic tension can be mainly determined by the flaws that consisted of grain size of minerals and microcracks.