Chromium diboride

CiB2 chromium diboride [12007-16-8] ">2130 SmB4 samarium tetraboride [12007-82-8] ... [Pg.218]

Wisconsin Johnson Matthey, Inc., Alfa Aesar, Ward Hill, Massachusetts (6) chromium(III) chloride Blue Grass Chemical Specialties, LP, New Albany, Indiana, McGean-Rohco, Inc., Cleveland, Ohio (7) chromium diboride Johnson Matthey, Inc., Ward Hill, Massachusetts (8) chromium dioxide DuPont, DuPont Diversified Businesses, Newport, Delaware (9) chromium 2-ethylhexanoate OM Group, Inc., Franklin, Pennsylvania, The Shepherd Chemical Company, Cincinnati, Ohio (10) chromium fluoride Atotech... [Pg.318]

Most borides are chemically inert in bulk form, which has led to industrial applications as engineering materials, principally at high temperature. The transition metal borides display a considerable resistance to oxidation in air. A few examples of applications are given here. Titanium and zirconium diborides, alone or in admixture with chromium diboride, can endure temperatures of 1500 to 1700 K without extensive attack. In this case, a surface layer of the parent oxides is formed at a relatively low temperature, which prevents further oxidation up to temperatures where the volatility of boron oxide becomes appreciable. In other cases the oxidation is retarded by the formation of some other type of protective layer, for instance, a chromium borate. This behavior is favorable and in contrast to that of the refractory carbides and nitrides, which form gaseous products (carbon oxides and nitrogen) in air at high temperatures. Boron carbide is less resistant to oxidation than the metallic borides. [Pg.409]

CrB2 CHROMIUM DIBORIDE 558 CsOH CESIUM HYDROXIDE 598... [Pg.1906]

Burnable poison material and form Chromium diboride... [Pg.641]

Chromium Diboride (CrBj) hexagonal, AIB2 structure (C-32 type)... [Pg.67]

Borides Chromium Diboride (CrB2) 9.61 + 10.72x10" cal/mole at 494-lOlOK... [Pg.402]

Borides Chromium Diboride (CrB2) Hafnium Diboride (HfB2) Tantalum Diboride (TaB2) ZlxlO 10-12 X 10 oaxio room temp. [Pg.570]

Aluminum Oxide (AI2O3) (single crystal) Aluminum Nitride (AIN) Chromium Diboride (CrB2) Silicon Carbide (SiC) (cubic, CVD) 0.047 at 300°C 0.048 at 600°C 0.049-0.076 at room temp. 0.049-0.080 at 600°C... [Pg.1109]

Zirconium Diboride (ZrB2) Chromium Diboride (CrB2) Titanium mononitride (TiN) Tungsten Monocarbide (WC) Knoop lOOg 1560 kg/mm Knoop lOOg 1700 kg/mm Knoop lOOg 1770 kg/mm Knoop lOOg 1870-1880 kg/mm ... [Pg.1258]

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