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1 графит особо чистый
син. спектрально чистый графитspectroscopic graphite (син. ultra pure graphite)Искусственный графит с суммой примесей не более 110'3% (вес.) Применяется в атомной энергетике и полупроводниковой промышленности, изделиях для спектрального анализа. -
2 пирографит особо чистый
high-purity pyrolytic graphite (син. spectroscopic pyrolytic graphite)Пирографит с ярко выраженной анизотропией основных физико-механических свойств, высокой плотностью, малой пористостью, низкой газопроницаемостью и низким содержанием примесей.
См. также в других словарях:
spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… … Universalium
chemical bonding — ▪ chemistry Introduction any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another … Universalium
radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… … Universalium
Molecular orbital theory — In chemistry, molecular orbital (MO) theory is a method for determining molecular structure in which electrons are not assigned to individual bonds between atoms, but are treated as moving under the influence of the nuclei in the whole… … Wikipedia
Synthetic diamond — Synthetic diamonds of various colors grown by the high pressure high temperature technique Synthetic diamond is diamond produced in a technological process; as opposed to natural diamond, which is created in geological processes. Synthetic… … Wikipedia
Crystallographic defects in diamond — Synthetic diamonds of various colors grown by the high pressure high temperature technique, the diamond size is 2 mm … Wikipedia
Amorphous carbon — is an allotrope of carbon that does not have any crystalline structure. As with all glassy materials, some short range order can be observed, but there is no long range pattern of atomic positions. Amorphous carbon is often abbreviated to aC for… … Wikipedia
cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… … Universalium
X-ray crystallography — can locate every atom in a zeolite, an aluminosilicate with many important applications, such as water purification. X ray crystallography is a method of determining the arrangement of atoms within a crystal, in which a beam of X rays strikes a… … Wikipedia
Optical properties of carbon nanotubes — Contents 1 Terminology 2 Electronic structure of carbon nanotube 3 Van Hove singularities … Wikipedia
Brown diamonds — A collection of brown diamonds in the Smithsonian. The pear shaped pendant at the bottom of the necklace weighs 67 carats (13 g). Brown diamonds are the most common color variety of natural diamonds. The brown color makes them less… … Wikipedia