- high-melting boride
- тугоплавкий борид
Englsh-Russian aviation and space dictionary. - M.: Military publishing house USSR Ministry of Defence. edited by M. Murashkevich. 1974.
high-melting boride
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Boride — In chemistry a boride is a chemical compound between boron and a less electronegative element. This is a very large group of compounds that are generally high melting and are not ionic in nature. Some borides exhibit very useful physical… … Wikipedia
Titanium boride — Chembox new ImageFile = ImageSize = IUPACName = OtherNames = Section1 = Chembox Identifiers CASNo = 12045 63 5 PubChem = SMILES = Section2 = Chembox Properties Formula = TiB2 MolarMass = 69.5 g/mol Appearance = metallic grey Density = MeltingPt … Wikipedia
Calcium hexaboride — Chembox new ImageFile = ImageSize = IUPACName = Calcium hexaboride OtherNames = Calcium boride Section1 = Chembox Identifiers CASNo = 12007 99 7 PubChem = SMILES = Section2 = Chembox Properties Formula = CaB6 MolarMass = 104.94 g/mol Appearance … Wikipedia
Hot cathode — is also a name for a hot filament ionization gauge, a vacuum measuring device.In vacuum tubes, a hot cathode is a cathode electrode which emits electrons due to thermionic emission. ( Cf. cold cathodes, where field emission is used and which do… … Wikipedia
Tungsten carbide — Chembox new Name = Tungsten carbide ImageFile = Tungsten carbide.jpg ImageName = Tungsten carbide milling bits Section1 = Chembox Identifiers CASNo = 12070 12 1 Section2 = Chembox Properties Formula = WC MolarMass = 195.86 g·mol−1 Appearance =… … Wikipedia
Boron — (pronEng|ˈbɔərɒn) is a chemical element with atomic number 5 and the chemical symbol B. Boron is a trivalent nonmetallic element which occurs abundantly in the evaporite ores borax and ulexite. Boron is never found as a free element on… … Wikipedia
Cermet — A cermet is a composite material composed of ceramic (cer) and metallic (met) materials. A cermet is ideally designed to have the optimal properties of both a ceramic, such as high temperature resistance and hardness, and those of a metal, such… … Wikipedia
Samarium — promethium ← samarium → europium ↑ Sm ↓ … Wikipedia
Crystal structure of boron-rich metal borides — Two single crystals of YB66 (1 cm diameter) grown by floating zone technique using (100) oriented seeds. In the top crystal, the seed (left from the black line) has same diameter as the crystal. In the bottom crystal (sliced), the seed is much… … Wikipedia
advanced ceramics — ▪ ceramics Introduction substances and processes used in the development and manufacture of ceramic materials that exhibit special properties. As is pointed out in the article ceramic composition and properties, ceramics are… … Universalium
boron — boronic /boh ron ik, baw , beuh /, adj. /bawr on, bohr /, n. Chem. a nonmetallic element occurring naturally only in combination, as in borax or boric acid, and obtained in either an amorphous or a crystalline form when reduced from its compounds … Universalium
