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  2. Kroll process - Wikipedia

    en.wikipedia.org/wiki/Kroll_process

    Many methods had been applied to the production of titanium metal, beginning with a report in 1887 by Nilsen and Pettersen using sodium, which was optimized into the commercial Hunter process. In this process (which ceased to be commercial in the 1990s) TiCl 4 is reduced to the metal by sodium .

  3. Metal - Wikipedia

    en.wikipedia.org/wiki/Metal

    Download as PDF; Printable version; ... The general science of metals is called metallurgy, ... 3D print of NASA meatball, made out of GRX-810, an oxide dispersion ...

  4. Metallurgy - Wikipedia

    en.wikipedia.org/wiki/Metallurgy

    Metallurgy derives from the Ancient Greek μεταλλουργός, metallourgós, "worker in metal", from μέταλλον, métallon, "mine, metal" + ἔργον, érgon, "work" The word was originally an alchemist's term for the extraction of metals from minerals, the ending -urgy signifying a process, especially manufacturing: it was discussed in this sense in the 1797 Encyclopædia ...

  5. Timeline of materials technology - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_materials...

    16th century BC – The Hittites develop crude iron metallurgy; 13th century BC – Invention of steel when iron and charcoal are combined properly; 10th century BC – Glass production begins in ancient Near East; 1st millennium BC – Pewter beginning to be used in China and Egypt; 1000 BC – The Phoenicians introduce dyes made from the ...

  6. Extractive metallurgy - Wikipedia

    en.wikipedia.org/wiki/Extractive_metallurgy

    Extractive metallurgy is a branch of metallurgical engineering wherein process and methods of extraction of metals from their natural mineral deposits are studied. The field is a materials science, covering all aspects of the types of ore, washing, concentration, separation, chemical processes and extraction of pure metal and their alloying to suit various applications, sometimes for direct ...

  7. Roman metallurgy - Wikipedia

    en.wikipedia.org/wiki/Roman_metallurgy

    The Metallurgy of Roman Silver Coinage: From the Reform of Nero to the Reform of Trajan. Cambridge: Cambridge University Press, 2014. Corretti,Benvenuti. "Beginning of iron metallurgy in Tuscany, with special reference to Etruria mineraria." Mediterranean archaeology 14 (2001): 127–45. Healy, John F. Mining and metallurgy in the Greek and ...

  8. Carbonyl metallurgy - Wikipedia

    en.wikipedia.org/wiki/Carbonyl_metallurgy

    Spheres of nickel made by the Mond process. Carbonyl metallurgy is used to manufacture products of iron, nickel, steel, and other metals. Coatings are produced by vapor plating using metal carbonyl vapors. These are metal-ligand complexes where carbon monoxide is bonded to individual atoms of metals .

  9. Powder metallurgy - Wikipedia

    en.wikipedia.org/wiki/Powder_metallurgy

    Powder metallurgy (PM) is a term covering a wide range of ways in which materials or components are made from metal powders. PM processes are sometimes used to reduce or eliminate the need for subtractive processes in manufacturing, lowering material losses and reducing the cost of the final product. [ 1 ]