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tantalum carbide

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  • Tantalum carbide — Chembox new Name = Tantalum carbide ImageFile = Tantalum carbide.jpg ImageName = Tantalum carbide OtherNames = tantalum (IV) carbide Section1 = Chembox Identifiers CASNo = 12070 06 3 Section2 = Chembox Properties Formula = TaC MolarMass = 192.959 …   Wikipedia

  • tantalum carbide — noun : a very high melting heavy dark yellow or brown crystalline compound TaC that is one of the hardest substances known, that is made by heating carbon with tantalum or tantalum pentoxide at high temperatures, and that is used in the cutting… …   Useful english dictionary

  • Tantalum — (pronEng|ˈtæntələm) (formerly tantalium IPA|/tænˈtæliəm/) is a chemical element with the symbol Ta and atomic number 73. A rare, hard, blue grey, lustrous, transition metal, tantalum is highly corrosion resistant and occurs naturally in the… …   Wikipedia

  • tantalum — /tan tl euhm/, n. Chem. a gray, hard, rare, metallic element occurring in columbite and tantalite and usually associated with niobium: used, because of its resistance to corrosion by most acids, for chemical, dental, and surgical instruments and… …   Universalium

  • carbide — /kahr buyd, bid/, n. 1. a compound of carbon with a more electropositive element or group. 2. See calcium carbide. 3. a very hard mixture of sintered carbides of various heavy metals, esp. tungsten carbide, used for cutting edges and dies. [1860… …   Universalium

  • tantalum oxide — noun : an oxide of tantalum; especially : the crystalline pentoxide Ta2O5 obtained by igniting tantalum in air or oxygen and used in making optical glass and tantalum carbide …   Useful english dictionary

  • Carbide — For the software development tool targeting the Symbian OS, see Carbide.c++. Calcium carbide. In chemistry, a carbide is a compound composed of carbon and a less electronegative element. Carbides can be generally classified by chemical bonding… …   Wikipedia

  • Tantalum hafnium carbide — Chembox new Name = Tantalum hafnium carbide ImageFile = ImageName = OtherNames = Section1 = Chembox Identifiers CASNo = Section2 = Chembox Properties Formula = Ta4HfC5 MolarMass = Density = MeltingPtC = 4215 BoilingPt = Tantalum hafnium carbide… …   Wikipedia

  • Zirconium carbide — Chembox new Name = Zirconium carbide ImageFile = Zirconium(IV) carbide.jpg ImageName = Zirconium carbide OtherNames = zirconium(IV) carbide Section1 = Chembox Identifiers CASNo = 12070 14 3 Section2 = Chembox Properties Formula = ZrC MolarMass =… …   Wikipedia

  • Niobium carbide — Identifiers CAS number 12069 94 2 Properties Molecular formula NbC …   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

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