silvering

silvering
/sil"veuhr ing/, n.
1. the act or process of coating with silver or a substance resembling silver.
2. the coating thus applied: the silvering of the mirror.
[1700-10; SILVER + -ING1]

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▪ glass process
      process of making mirrors (mirror) by coating glass with silver, discovered by the German chemist Justus von Liebig (Liebig, Justus, Freiherr von) in 1835. In the process silver–ammonia compounds are reduced chemically to metallic silver, which is deposited on a suitably shaped glass surface. Modern processes may utilize silver solutions and reducer solutions—consisting of invert sugar, Rochelle salt, or formaldehyde—that meet in a spray above clean glass traveling on a conveyor; as the spray falls on the glass surface, metallic silver is deposited.

      Silvering of partial reflectors, for optical and physics research applications, must be done by a process slow enough so that the amount of reflectivity can be controlled. Partial reflectors transmit and reflect only portions of the incident light. Special mirrors for such instruments as reflecting telescopes are usually silvered by evaporation of silver onto a surface from an electrically heated filament in high vacuum.

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Universalium. 2010.

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Look at other dictionaries:

  • Silvering — is the chemical process of coating glass with a reflective substance.Glass mirrors were first coated by molten metal. Later, tin amalgam was used. The mercury contamination by this process made it necessary to switch to the more expensive silver… …   Wikipedia

  • Silvering — Sil ver*ing, n. (Metal.) The art or process of covering metals, wood, paper, glass, etc., with a thin film of metallic silver, or a substance resembling silver; also, the firm do laid on; as, the silvering of a glass speculum. [1913 Webster] …   The Collaborative International Dictionary of English

  • silvering — [sil′vəriŋ] n. 1. the act of covering with silver or a silvery substance 2. a coating of silver or a silvery substance 3. a silvery sheen or appearance …   English World dictionary

  • Silvering — Silver Sil ver, v. t. [imp. & p. p. {Silvered}; p. pr. & vb. n. {Silvering}.] 1. To cover with silver; to give a silvery appearance to by applying a metal of a silvery color; as, to silver a pin; to silver a glass mirror plate with an amalgam of… …   The Collaborative International Dictionary of English

  • silvering — sidabravimas statusas T sritis chemija apibrėžtis Dengimas sidabru. atitikmenys: angl. silver deposition; silver plating; silvering rus. серебрение …   Chemijos terminų aiškinamasis žodynas

  • silvering — noun The process of coating a surface with a thin layer of silver (or a similar metal), especially so as to form a mirror …   Wiktionary

  • silvering — sil·ver || sɪlvÉ™(r) n. Ag, argentum, whitish metallic element (Chemistry); element used to make jewelry, coins, etc.; coins made of silver; money; silverware; grayish white metallic color v. make silvery in color; coat with silver, plate with… …   English contemporary dictionary

  • silvering — /ˈsɪlvərɪŋ/ (say silvuhring) noun 1. the act or process of coating with silver or a substance resembling silver. 2. the coating thus applied …  

  • silvering — noun ( s) Etymology: from gerund of silver (III) 1. a. : the silver or a film resembling silver on a silvered object b …   Useful english dictionary

  • Mercury silvering — or fire gilding is a silvering technique for applying a thin layer of precious metal such as silver or gold (mercury gilding) to a base metal object. The process was invented during the Middle Ages and is documented in Vannoccio Biringuccio s… …   Wikipedia

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