ductile
(adjective)
Capable of being pulled or stretched into thin wire by mechanical force without breaking.
Examples of ductile in the following topics:
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Reinforced Concrete Construction
- Reinforced concrete is a composite material in which concrete's relatively low tensile strength and ductility are counteracted by the inclusion of reinforcement with a higher tensile strength and ductility.
- Having a low tensile strength, in combination with low ductility (i.e. the ability to bend), means a material is more likely to break without reinforcement.
- For a strong, ductile and durable construction, the reinforcement needs to have the following properties:
- There are many different methods of reinforced concrete construction, depending on the ductility and strength of the reinforcement beams.
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General Properties of Metals
- Metals are usually malleable, ductile, and shiny.
- Typically they are malleable and ductile, deforming under stress without cleaving.
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Variation of Physical Properties Within a Group
- They are malleable (can be hammered into thin sheets) and ductile (can be stretched into wires).
- On the left is sodium, a very metallic element (ductile, malleable, conducts electricity).
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Copper
- Copper is a ductile metal that conducts heat and electricity and forms a rich variety of compounds with oxidation states +1 and +2.
- Copper is a ductile metal with very high thermal and electrical conductivity; its symbol is Cu and its atomic number is 29.
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Periodic Trends in Metallic Properties
- Because each ion is surrounded by the electron fluid in all directions, the bonding has no directional properties; this accounts for the high malleability and ductility of metals.
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Bonding in Metals: The Electron Sea Model
- Metals are ductile and malleable because local bonds can be easily broken and reformed.
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Metallic Crystals
- Metallic bonding accounts for many physical properties of metals, such as strength, malleability, ductility, thermal and electrical conductivity, opacity, and luster.
- Mechanical properties of metals include malleability and ductility, meaning the capacity for plastic deformation.
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Aluminum
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Transition Metals
- For example, the metals in group 11 have similar characteristics of electrical conductivity, luster, crystal structure, ductility, and tensile strength.
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Occurrence of Metals
- Iron alloyed with various proportions of carbon gives low, mid and high carbon steels; the increased carbon levels reduce ductility and toughness.