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  • borides — Смотри Бориды …   Энциклопедический словарь по металлургии

  • 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

  • Osmium borides — Structure of orthorombic OsB2. Green atoms are Os, pink – boron Osmium borides are compounds of osmium and boron. Their most remarkable property is potentially high hardness. It is thought that a combination of high electron density of osmium… …   Wikipedia

  • Plutonium borides — At least four borides can be formed by direct combination of plutonium and boron powders in an inert atmosphere at reduced pressure.PuB is formed at 1200C with a range 40 70%at boron, and has the NaCl structure, as do TiB, ZrB and HfB, with a Pu… …   Wikipedia

  • Crystal structure of boron-rich metal borides (data page) — Contents 1 Table I 2 Table II 3 Table III 4 Table IVa …   Wikipedia

  • Бориды — [borides] соединения бора с металлами большинством элементов подгрупп Ia IIa, IIIa VIIIb. Для некоторых элементов подгрупп Ib и IIb известны бинарные системы с высоким содержанием бора (например, CuB22, ZnB22), которые относятся не к химическим… …   Энциклопедический словарь по металлургии

  • 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

  • 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

  • Brazing — This article is about the metal joining process. For the cooking technique, see braising. Brazing practice Brazing is a metal joining process whereby a filler metal is heated above and distributed between two or more close fitting parts by… …   Wikipedia

  • 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

  • Boron nitride — IUPAC name Boron nitride Identifiers …   Wikipedia