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- Silicide abstract "A silicide is a compound that has silicon with (usually) more electropositive elements.Silicon is more electropositive than carbon. Silicides are structurally closer to borides than to carbides.Similar to borides and carbides, the composition of silicides cannot be easily specified as covalent molecules. The chemical bonds in silicides range from conductive metal-like structures to covalent or ionic. Silicides of all non-transition metals, with exception of beryllium, have been described.Mercury, thallium, bismuth, and lead are nonmiscible with liquid silicon.Silicon atoms in silicides can have many possible organizations:Isolated silicon atoms: electrically conductive Cu5Si, (V,Cr,Mn)3Si, Fe3Si, Mn3Si, and nonconductive (Mg,Ge,Sn,Pb)2Si, (Ca,Ru,Ce,Rh,Ir,Ni)2SiSi2 pairs: U3Si2, Hf and Th silicidesSi4 tetrahedra: KSi, RbSi, CsSiSin chains: USi, (Ti, Zr, Hf, Th, Ce, Pu)Si, CaSi, SrSi, YSiPlanar hexagonal graphite-like Si layers: β-USi2, silicides of other lanthanoids and actinoidsCorrugated hexagonal Si layers: CaSi2Open three-dimensional Si skeletons: SrSi2, ThSi2, α-USi2A silicide prepared by a self-aligned process is called a salicide. This is a process in which silicide contacts are formed only in those areas in which deposited metal (which after annealing becomes a metal component of the silicide) is in direct contact with silicon, hence, the process is self-aligned. It is commonly implemented in MOS/CMOS processes for ohmic contacts of the source, drain, and poly-Si gate.Group 1 and 2 silicides e.g. Na2Si and Ca2Si react with water to yielding hydrogen and/or silanes. At Consumer Electronics Show (CES) 2012 a safe and eco-friendly 1kW or 3kW mobile phone charger with sodium silicide that runs on water has introduced for 'people who spend time away from the electricity grid'. Any type of water can be used, including salt water and it can even run on puddle water providing it isn't thickened with mud or any other sediment.The transition metal silicides are, in contrast, usually inert to aqueous solutions of everything with exception of hydrofluoric acid; however, they react with more aggressive agents, e.g. melted potassium hydroxide, or fluorine and chlorine when red-hot.When magnesium silicide is placed into hydrochloric acid, HCl(aq), the gas silane, SiH4, is produced. This gas is the silicon analogue of methane, CH4, but is more reactive. Silane is pyrophoric, that is, due to the presence of oxygen, it spontaneously combusts in air:Mg2Si(s) + 4HCl(aq) → SiH4(g) + 2MgCl2(s)SiH4 + 2O2 → SiO2 + 2H2OThese reactions are typical of a Group 2 silicide. Mg2Si reacts similarly with sulfuric acid. Group 1 silicides are even more reactive. For example, sodium silicide, Na2Si, reacts rapidly with water to yield sodium silicate, Na2SiO3, and hydrogen gas.".
- Silicide wikiPageID "2182941".
- Silicide wikiPageLength "4362".
- Silicide wikiPageOutDegree "47".
- Silicide wikiPageRevisionID "657334291".
- Silicide wikiPageWikiLink Actinide.
- Silicide wikiPageWikiLink Alkali_metal.
- Silicide wikiPageWikiLink Alkaline_earth_metal.
- Silicide wikiPageWikiLink Beryllium.
- Silicide wikiPageWikiLink Binary_compounds_of_silicon.
- Silicide wikiPageWikiLink Bismuth.
- Silicide wikiPageWikiLink Boride.
- Silicide wikiPageWikiLink CMOS.
- Silicide wikiPageWikiLink Carbide.
- Silicide wikiPageWikiLink Carbon.
- Silicide wikiPageWikiLink Category:Anions.
- Silicide wikiPageWikiLink Category:Silicides.
- Silicide wikiPageWikiLink Chlorine.
- Silicide wikiPageWikiLink Consumer_Electronics_Show.
- Silicide wikiPageWikiLink Covalent_bond.
- Silicide wikiPageWikiLink Electrical_resistivity_and_conductivity.
- Silicide wikiPageWikiLink Electronegativity.
- Silicide wikiPageWikiLink Fluorine.
- Silicide wikiPageWikiLink Graphite.
- Silicide wikiPageWikiLink Hydrochloric_acid.
- Silicide wikiPageWikiLink Hydrofluoric_acid.
- Silicide wikiPageWikiLink Hydrogen.
- Silicide wikiPageWikiLink Ionic_bonding.
- Silicide wikiPageWikiLink Lanthanide.
- Silicide wikiPageWikiLink Lead.
- Silicide wikiPageWikiLink Magnesium_silicide.
- Silicide wikiPageWikiLink Mercury_(element).
- Silicide wikiPageWikiLink Methane.
- Silicide wikiPageWikiLink Miscibility.
- Silicide wikiPageWikiLink Nickel_silicide.
- Silicide wikiPageWikiLink Oxygen.
- Silicide wikiPageWikiLink Platinum_silicide.
- Silicide wikiPageWikiLink Potassium_hydroxide.
- Silicide wikiPageWikiLink Pyrophoricity.
- Silicide wikiPageWikiLink Salicide.
- Silicide wikiPageWikiLink Silane.
- Silicide wikiPageWikiLink Silicon.
- Silicide wikiPageWikiLink Sodium_silicate.
- Silicide wikiPageWikiLink Sodium_silicide.
- Silicide wikiPageWikiLink Sulfuric_acid.
- Silicide wikiPageWikiLink Tetrahedron.
- Silicide wikiPageWikiLink Thallium.
- Silicide wikiPageWikiLink Titanium_silicide.
- Silicide wikiPageWikiLink Transition_metal.
- Silicide wikiPageWikiLink Tungsten_disilicide.
- Silicide wikiPageWikiLinkText "Silicide".
- Silicide wikiPageWikiLinkText "monosilicide".
- Silicide wikiPageWikiLinkText "silicide".
- Silicide wikiPageUsesTemplate Template:Caesium.
- Silicide wikiPageUsesTemplate Template:Greenwood&Earnshaw.
- Silicide wikiPageUsesTemplate Template:Hafnium.
- Silicide wikiPageUsesTemplate Template:Potassium.
- Silicide wikiPageUsesTemplate Template:Reflist.
- Silicide wikiPageUsesTemplate Template:Rubidium.
- Silicide wikiPageUsesTemplate Template:Thorium.
- Silicide wikiPageUsesTemplate Template:Uranium.
- Silicide subject Category:Anions.
- Silicide subject Category:Silicides.
- Silicide hypernym Compound.
- Silicide type ChemicalCompound.
- Silicide comment "A silicide is a compound that has silicon with (usually) more electropositive elements.Silicon is more electropositive than carbon. Silicides are structurally closer to borides than to carbides.Similar to borides and carbides, the composition of silicides cannot be easily specified as covalent molecules. The chemical bonds in silicides range from conductive metal-like structures to covalent or ionic.".
- Silicide label "Silicide".
- Silicide sameAs Q426473.
- Silicide sameAs Сіліцыды.
- Silicide sameAs Silicur.
- Silicide sameAs Silicidy.
- Silicide sameAs Silicide.
- Silicide sameAs Siliciure.
- Silicide sameAs Սիլիցիդներ.
- Silicide sameAs Siliciuri.
- Silicide sameAs Krzemki.
- Silicide sameAs m.06t32s.
- Silicide sameAs Силициды.
- Silicide sameAs Silicider.
- Silicide sameAs Силіциди.
- Silicide sameAs Q426473.
- Silicide sameAs 矽化物.
- Silicide wasDerivedFrom Silicide?oldid=657334291.
- Silicide isPrimaryTopicOf Silicide.