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  2. Liquidmetal - Wikipedia

    en.wikipedia.org/wiki/Liquidmetal

    The lack of grain boundaries in a metallic glass eliminates grain-boundary corrosion—a common problem in high-strength alloys produced by precipitation hardening and sensitized stainless steels. Liquidmetal alloys are therefore generally more corrosion resistant, both due to the mechanical structure as well as the elements used in its alloy.

  3. Scrap metal yard draws complaints from Portsmouth ... - AOL

    www.aol.com/scrap-metal-yard-draws-complaints...

    Bob MacDonald purchased the property in 2017 and “through his business MAC Metals, continued to operate the property as a scrap metal yard,” Deputy City Attorney Trevor McCourt wrote in a memo ...

  4. Precious metal - Wikipedia

    en.wikipedia.org/wiki/Precious_metal

    The best known precious metals are the precious coinage metals, which are gold and silver. Although both have industrial uses, they are better known for their uses in art , jewelry , and coinage. Other precious metals include the platinum group metals: ruthenium , rhodium , palladium , osmium , iridium , and platinum , of which platinum is the ...

  5. Conservation and restoration of silver objects - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    Silver is known in the chemistry world as a noble metal, which means it is resistant to corrosion, but not completely immune. Whether silver plating or pure silver, the composite of the metal will tarnish when exposed to air and sulfur. Tarnish is a chemical reaction on the surface of metal (copper, brass, silver, etc.) and causes a layer of ...

  6. Non-ferrous metal - Wikipedia

    en.wikipedia.org/wiki/Non-ferrous_metal

    In metallurgy, non-ferrous metals are metals or alloys that do not contain iron (allotropes of iron, ferrite, and so on) in appreciable amounts.. Generally more costly than ferrous metals, non-ferrous metals are used because of desirable properties such as low weight (e.g. aluminium), higher conductivity (e.g. copper), [1] non-magnetic properties or resistance to corrosion (e.g. zinc). [2]

  7. Platinum Hits Costco Shelves: Why The Retail Giant Is ... - AOL

    www.aol.com/platinum-hits-costco-shelves-why...

    Costco is again venturing into the precious metals market, expanding its offerings beyond the gold and silver bars it sold to great success. The retail giant now offers 1-ounce platinum bars for ...

  8. RPM International - Wikipedia

    en.wikipedia.org/wiki/RPM_International

    RPM International Inc. is an American multinational company with subsidiaries that manufacture and market specialty coatings, sealants and building materials.Industrial brands include Tremco, Carboline, Universal Sealants, Stonhard, RPM/Belgium, Euco, Day-Glo and Dryvit.

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