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  2. Flux method - Wikipedia

    en.wikipedia.org/wiki/Flux_method

    Metal crucibles, such as platinum, titanium, and niobium are used for the growth of oxide crystals. Ceramic crucibles, such as alumina, zirconia, and boron nitride are used for the growth of metallic crystals. [2] For air-sensitive growths, contents are sealed in ampoules or placed in atmosphere controlled furnaces.

  3. Crucible - Wikipedia

    en.wikipedia.org/wiki/Crucible

    A modern crucible used in the production of silicon ingots via the Czochralski process Smaller clay graphite crucibles for copper alloy melting. A crucible is a container in which metals or other substances may be melted or subjected to very high temperatures.

  4. Muffle furnace - Wikipedia

    en.wikipedia.org/wiki/Muffle_furnace

    An Automatic Oil Muffle Furnace, circa 1910. Petroleum is contained in tank A, and is kept under pressure by pumping at intervals with the wooden handle, so that when the valve B is opened, the oil is vaporized by passing through a heating coil at the furnace entrance, and when ignited burns fiercely as a gas flame.

  5. Refractory - Wikipedia

    en.wikipedia.org/wiki/Refractory

    Refractory materials are used in furnaces, kilns, incinerators, and reactors. Refractories are also used to make crucibles and molds for casting glass and metals. The iron and steel industry and metal casting sectors use approximately 70% of all refractories produced. [4]

  6. Bridgman–Stockbarger method - Wikipedia

    en.wikipedia.org/wiki/Bridgman–Stockbarger_method

    The difference between the Bridgman [2] technique and Stockbarger [3] technique is subtle: While both methods utilize a temperature gradient and a moving crucible, the Bridgman technique utilizes the relatively uncontrolled gradient produced at the exit of the furnace; the Stockbarger technique introduces a baffle, or shelf, separating two ...

  7. Ladle (metallurgy) - Wikipedia

    en.wikipedia.org/wiki/Ladle_(metallurgy)

    Typically a transfer ladle will be used to transfer molten metal from a primary melting furnace to either a holding furnace or an auto-pour unit. Treatment ladle: a ladle used for a process to take place within the ladle to change some aspect of the molten metal. A typical example being to convert cast iron to ductile iron by the addition of ...

  8. Pipeclay triangle - Wikipedia

    en.wikipedia.org/wiki/Pipeclay_triangle

    A pipeclay triangle is a piece of laboratory apparatus that is used to support a crucible being heated by a Bunsen burner or other heat source. It is made of wires strung in an equilateral triangle on which are strung hollow ceramic, normally fire clay, tubes. The triangle is usually supported on a tripod or iron ring.

  9. Gooch crucible - Wikipedia

    en.wikipedia.org/wiki/Gooch_crucible

    A Gooch crucible, named after Frank Austin Gooch, [1] is a filtration device for laboratory use (and was also called a Gooch filter [2]). It is convenient for collecting a precipitate directly within the vessel in which it is to be dried, possibly ashed , and finally weighed in gravimetric analysis .

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