- close-packed hexagonal structure
- гексагональная плотноупакованная структура
English-russian dictionary of physics. 2013.
English-russian dictionary of physics. 2013.
Hexagonal compact — Empilement compact L empilement compact est la manière d agencer des sphères dans l espace afin d avoir la plus grande densité de sphères, sans que celles ci ne se recouvrent. C est un problème que l on se pose en général en géométrie euclidienne … Wikipédia en Français
Periodic table (crystal structure) — The structures of metallic elements adopted at normal temperatures are colour coded and shown below Greenwood Earnshaw] , the only exception is mercury, Hg, which is a liquid and the structure refers to the low temperature form. The melting… … Wikipedia
Crystal structure — In mineralogy and crystallography, crystal structure is a unique arrangement of atoms or molecules in a crystalline liquid or solid. A crystal structure is composed of a pattern, a set of atoms arranged in a particular way, and a lattice… … Wikipedia
cobalt — /koh bawlt/, n. a silver white metallic element with a faint pinkish tinge, occurring in compounds whose silicates afford important blue coloring substances for ceramics. Symbol: Co; at. wt.: 58.933; at. no.: 27; sp. gr.: 8.9 at 20°C. [1675 85; … Universalium
Curium — This article is about the chemical element. For the ancient city located in Cyprus, see Kourion. americium ← curium → berkelium … Wikipedia
Atomic packing factor — In crystallography, atomic packing factor (APF) or packing fraction is the fraction of volume in a crystal structure that is occupied by atoms. It is dimensionless and always less than unity. For practical purposes, the APF of a crystal structure … Wikipedia
titanium processing — Introduction preparation of the ore for use in various products. Titanium (Ti) is a soft, ductile, silvery gray metal with a melting point of 1,675° C (3,047° F). Owing to the formation on its surface of an oxide film that is… … Universalium
Classical and quantum conductivity — Classical and quantum mechanical views of conductivity have both described the movements of electrons in a metallic solid. The free electron gas that is present in metallic solids is the reason for an important property of all metals:… … Wikipedia
Iron — Fe redirects here. For other uses, see Fe (disambiguation). This article is about the chemical element. For other uses, see Iron (disambiguation). manganese … Wikipedia
Selenomonad — Taxobox color = lightgrey name = Selenomonas regnum = Bacteria phylum = Firmicutes classis = Clostridia ordo = Clostridiales familia = Acidaminococcaceae genus = Selenomonas genus authority = Wenyon, 1926 subdivision ranks = Species [ [http://www … Wikipedia
thallium — /thal ee euhm/, n. Chem. a soft, malleable, rare, bluish white metallic element: used in the manufacture of alloys and, in the form of its salts, in rodenticides. Symbol: Tl; at. wt.: 204.37; at. no.: 81; sp. gr.: 11.85 at 20°C. [1860 65; < NL,… … Universalium