Revision 233281 of "Cementite" on enwiki

'''Cementite''' or '''[[iron]] [[carbon|carbide]]''' is a [[chemical compound]] with the formula Fe<sub>3</sub>C.  It is a hard, brittle material consisting of components of carbon [[steel]], with [[orthorhombic]] crystals, and forms from [[austenite]] during cooling.  It mixes with [[ferrite]], the other product of austenite, to form a [[lamellar structure]] called [[pearlite]].

Fe<sub>3</sub>C is also known as '''cohenite''', particularly when found mixed with [[nickel]] and [[cobalt]] carbides in [[meteorite]]s.  This form, a hard, shiny silver mineral, was first described by [[E. Weinschenk]] in [[1889]].
[[de:Zementit]]
[[ja:&#12475;&#12513;&#12531;&#12479;&#12452;&#12488;]]
{{chem-stub}}