crucible process

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• crucible process — Technique for producing cast or tool steel. It was invented in Britain с 1740 by Benjamin Huntsman, who heated small pieces of carbon steel in a closed fireclay crucible placed in a coke fire. This was the first process used in Europe in which… …   Universalium

• Crucible steel — Iron alloy phases Ferrite (α iron, δ iron) Austenite (γ iron) Pearlite (88% ferrite, 12% cementite) …   Wikipedia

• process — processual /pro sesh ooh euhl/ or, esp. Brit, /proh /, adj. /pros es/; esp. Brit. /proh ses/, n., pl. processes /pros es iz, euh siz, euh seez / or, esp. Brit., /proh ses , proh seuh /, v., adj. n. 1. a systematic series of actions directed to… …   Universalium

• Crucible — For other uses, see Crucible (disambiguation). A modern crucible used in the production of silicon ingots via the Czochralski process A crucible is a container used for metal, glass, and pigment production as well as a number of modern laboratory …   Wikipedia

• Skull crucible — The Skull Crucible process was developed at the Lebedev Physical Institute in Moscow to manufacture cubic zirconia. Zirconium oxide powder is heated then gradually allowed to cool. Heating is accomplished by radio frequency induction using a coil …   Wikipedia

• Czochralski process — The Czochralski process The Czochralski process is a method of crystal growth used to obtain single crystals of semiconductors (e.g. silicon, germanium and gallium arsenide), metals (e.g. palladium, platinum, silver, gold), salts, and synthetic …   Wikipedia

• Bessemer process — The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron. The process is named after its inventor, Henry Bessemer, who took out a patent on the process in 1855. The process was… …   Wikipedia

• Cementation process — The cementation process is an obsolete technique for making steel by carburization of iron. Unlike modern steelmaking it increased the amount of carbon in the iron. It was apparently developed before the 17th century. OriginsThe process probably… …   Wikipedia

• Industrial process — Industrial processes are procedures involving chemical or mechanical steps to aid in the manufacture of an item or items, usually carried out on a very large scale.Industrial processes are the key components of heavy industry.Most processes make… …   Wikipedia

• The Crucible (1996 film) — Infobox Film name = The Crucible writer = Arthur Miller starring = Daniel Day Lewis Winona Ryder Paul Scofield Joan Allen Bruce Davison Rob Campbell Frances Conroy director = Nicholas Hytner producer = cinematography = Andrew Dunn editing = Tariq …   Wikipedia

• Castner process — The Castner process is a process for manufacturing sodium metal by electrolysis of molten sodium hydroxide at approximately 330°C. Below that temperature the melt would solidify, above the metal would start to dissolve in the melt.Process… …   Wikipedia