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..., mechanical, and/or electrical energy; for instance, after synthesis in a furnace, a pyroelectric crystal allowed to cool under no applied stress generally b ...terials which also display the [[ferroelectric effect]], in which a stable electric dipole can be oriented or reversed by applying an electrostatic field. Pyr

...rnace, the radioactive metal will melt and contaminate the steel from this furnace. In the United States, some buildings have been demolished because of the l ...h [[caesium]]), which accounts for around 5%; or the element can leave the furnace and pass through the bag house to enter the air (as with [[iodine]]).

...tallurgy]] is used. Powders of the pure metal are compacted, heated using electric current, and further fabricated by cold working with annealing steps. Refr ...when electric arcs have to be established. The ignition is easier and the arc burns more stable than without the addition of thorium. For [[powder metall

...tation needed|date=January 2010}}, a remarkable feat at the time. One such furnace was found in Samanalawewa and archaeologists were able to produce steel as ...roduction has been the smelting of iron ore into [[pig iron]] in a [[blast furnace]].<ref name="tyle">R. F. Tylecote, ''A history of metallurgy'' 2 edn, Insti

...an be 1,000&nbsp;times harder than pure iron. Iron is smelted in a [[blast furnace]], where ore is reduced by [[coke (fuel)|coke]] to metallic iron. ...e principal ores for the production of iron (see [[bloomery]] and [[blast furnace]]). They are also used in the production of [[Ferrite (magnet)|ferrite]]s,

...nd carbon and then reduced either in a blast furnace or in an electric arc furnace.<ref name="IndMin">{{cite book|title =Industrial Minerals & Rocks: Commodit

...FeCr₂O₄) is reduced in large scale in [[electric arc furnace]] or in smaller smelters with either [[aluminium]] or [[silicon]] in an [[a ...xide a material for high temperature refractory applications, like [[blast furnace]]s, cement [[kiln]]s, molds for the firing of [[brick]]s and as foundry san