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  2. Aluminium oxynitride - Wikipedia

    en.wikipedia.org/wiki/Aluminium_oxynitride

    Aluminium oxynitride (marketed under the name ALON by Surmet Corporation [3]) is a transparent ceramic composed of aluminium, oxygen and nitrogen. Aluminium oxynitride is optically transparent (≥ 80%) in the near-ultraviolet, visible, and mid-wave- infrared regions of the electromagnetic spectrum. It is four times as hard as fused silica ...

  3. Shiny Brite - Wikipedia

    en.wikipedia.org/wiki/Shiny_Brite

    The Shiny Brite company produced the most popular Christmas tree ornaments in the United States throughout the 1940s and 1950s. In 1937, Max Eckardt established Shiny Brite ornaments, working with the Corning Glass company to mass-produce glass Christmas ornaments. Eckardt had been importing hand- blown glass balls from Germany since around ...

  4. Chemical milling - Wikipedia

    en.wikipedia.org/wiki/Chemical_milling

    A high-purity (≥99.9998%) aluminium bar that has been etched to reveal the component crystallites. Chemical milling or industrial etching is the subtractive manufacturing process of using baths of temperature-regulated etching chemicals to remove material to create an object with the desired shape. [1] [2] Other names for chemical etching ...

  5. Etching - Wikipedia

    en.wikipedia.org/wiki/Etching

    Etching by Daniel Hopfer, who is believed to have been the first to apply the technique to printmaking. Etching is traditionally the process of using strong acid or mordant to cut into the unprotected parts of a metal surface to create a design in intaglio (incised) in the metal. [1] In modern manufacturing, other chemicals may be used on other ...

  6. Photochemical machining - Wikipedia

    en.wikipedia.org/wiki/Photochemical_machining

    Photochemical machining. Photochemical machining ( PCM ), also known as photochemical milling or photo etching, is a chemical milling process used to fabricate sheet metal components using a photoresist and etchants to corrosively machine away selected areas. This process emerged in the 1960s as an offshoot of the printed circuit board industry.

  7. Lampworking - Wikipedia

    en.wikipedia.org/wiki/Lampworking

    Lampworking is a type of glasswork in which a torch or lamp is used to melt the glass. Once in a molten state, the glass is formed by blowing and shaping with tools and hand movements. It is also known as flameworking or torchworking, as the modern practice no longer uses oil-fueled lamps. Although lack of a precise definition for lampworking ...

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