:"For malleability in cryptography, see malleability (cryptography)."Malleability is a mechanical property of matter, but is most commonly used in reference to metals and metalloids. A malleable metal is capable of being flattened into thin sheets without cracking by the processes of hammering or rolling. Malleability differs from ductility as malleability is the ability to deform easily upon the application of a compressive force, and ductility is doing the same with tensile force. This property is important in metalworking, as materials that crack or break under pressure cannot be hammered or rolled. Malleable materials can be formed using stamping or pressing, whereas brittle metals and plastics must be molded.

Malleability occurs as a result of the specific types of bonds found in metals "(Main article: metallic bond)". In metallic bonds, valence shell electrons are delocalized and shared between many atoms. This is often referred to as the "sea of electrons" and is responsible for many properties of metal. The delocalized electrons allow metal atoms to slide past one another without being subjected to strong repulsive forces that would cause other materials to shatter.
Gold is the most malleable metal, followed by tin and aluminium. Many plastics, and amorphous solids such as Play-Doh are also malleable.

See also

* Ductility
* Deformation
* luster

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  • Malleability — Mal le*a*bil i*ty, n. [CF. F. mall[ e]abilit[ e].] The quality or state of being malleable; opposed to {friability} and {brittleness}. Locke. [1913 Webster] …   The Collaborative International Dictionary of English

  • Malleability — Malleability. См. Ковкость. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • malleability — index amenability, discipline (obedience) Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • malleability — 1680s, from MALLEABLE (Cf. malleable) + ITY (Cf. ity) …   Etymology dictionary

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  • malleability — malleable ► ADJECTIVE 1) able to be hammered or pressed into shape without breaking or cracking. 2) easily influenced. DERIVATIVES malleability noun. ORIGIN from Latin malleus a hammer …   English terms dictionary

  • Malleability (cryptography) — Malleability is a property of some cryptographic algorithms.[1] An encryption algorithm is malleable if it is possible for an adversary to transform a ciphertext into another ciphertext which decrypts to a related plaintext. That is, given an… …   Wikipedia

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