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  2. Titanium ring - Wikipedia

    en.wikipedia.org/wiki/Titanium_ring

    Titanium rings are jewelry rings or bands which have been primarily constructed from titanium. The actual compositions of titanium can vary, such as "commercial pure" (99.2% titanium) or "aircraft grade" (primarily, 90% titanium, 6% aluminum, 4% vanadium), and titanium rings are often crafted in combination with other materials, such as gemstones and traditional jewelry metals.

  3. Tungsten - Wikipedia

    en.wikipedia.org/wiki/Tungsten

    The jewelry industry makes rings of sintered tungsten carbide, tungsten carbide/metal composites, and also metallic tungsten. [78] WC/metal composite rings use nickel as the metal matrix in place of cobalt because it takes a higher luster when polished. Sometimes manufacturers or retailers refer to tungsten carbide as a metal, but it is a ...

  4. Category:Tungsten compounds - Wikipedia

    en.wikipedia.org/wiki/Category:Tungsten_compounds

    Template:Tungsten compounds This page was last edited on 3 January 2024, at 12:57 (UTC). Text is available under the Creative Commons Attribution ...

  5. Group 9 element - Wikipedia

    en.wikipedia.org/wiki/Group_9_element

    Cobalt compounds have been used for centuries to impart a rich blue color to glass, glazes, and ceramics. Cobalt has been detected in Egyptian sculpture, Persian jewelry from the third millennium BC, in the ruins of Pompeii , destroyed in 79 AD, and in China, dating from the Tang dynasty (618–907 AD) and the Ming dynasty (1368–1644 AD).

  6. Titanium compounds - Wikipedia

    en.wikipedia.org/wiki/Titanium_compounds

    The +4 oxidation state dominates titanium chemistry, [1] but compounds in the +3 oxidation state are also numerous. [2] Commonly, titanium adopts an octahedral coordination geometry in its complexes, [3] [4] but tetrahedral TiCl 4 is a notable exception. Because of its high oxidation state, titanium(IV) compounds exhibit a high degree of ...

  7. Glossary of chemical formulae - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemical_formulae

    This is a list of common chemical compounds with chemical formulae and CAS numbers, ... Silver tetrafluoroborate: 14104-20-2 ... europium tungsten tetraoxide:

  8. Group 4 element - Wikipedia

    en.wikipedia.org/wiki/Group_4_element

    In a closed vessel, the metal reacts with iodine at temperatures above 500 °C forming metal(IV) iodide; at a tungsten filament of nearly 2000 °C the reverse reaction happens and the iodine and metal are set free. The metal forms a solid coating on the tungsten filament and the iodine can react with additional metal resulting in a steady turnover.

  9. Intermetallic - Wikipedia

    en.wikipedia.org/wiki/Intermetallic

    The definition of metal includes: Post-transition metals, i.e. aluminium, gallium, indium, thallium, tin, lead, and bismuth. Metalloids, e.g. silicon, germanium, arsenic, antimony and tellurium. Homogeneous and heterogeneous solid solutions of metals, and interstitial compounds such as carbides and nitrides are excluded under this definition ...

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