Alloys
Coins are alloys of the following: - Nickel (Ni) - Zinc (Zn) - Copper (Cu)
Alloys are a solid mixtures of metals with either metals, or non-metals. Alloys are made my melting the components which are to be used, and mixing them together, as shown above. They are then solidified by cooling them.
Alloys are made for their hardness, high strength, resistance to corrosion and good heat and electrical conductivity. The disturbance in the lattice, which was caused by the addition of other type of atoms to the original lattice, makes the substance harder, more resistant to corrosion, and as it is a metal, it will be conductive.
The 2 types of Alloys:
Substitutional Alloys Metal alloys in which atoms of a parent element are replaced by those of the components. Example - Bronze (Cu and Sn) Interstitial Alloys Metal alloys in which smaller atoms are inserted into the gaps in the lattice of a parent element. Examples - Steel (Fe and C)
In substitutional alloys, the atoms of the other components need to be of similar sizes, which makes it harder to produce.
By Ruhaan
Ruhaan_ChemistryPoster
Ruhaan Batta
Created on August 19, 2021
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Transcript
Alloys
Coins are alloys of the following: - Nickel (Ni) - Zinc (Zn) - Copper (Cu)
Alloys are a solid mixtures of metals with either metals, or non-metals. Alloys are made my melting the components which are to be used, and mixing them together, as shown above. They are then solidified by cooling them.
Alloys are made for their hardness, high strength, resistance to corrosion and good heat and electrical conductivity. The disturbance in the lattice, which was caused by the addition of other type of atoms to the original lattice, makes the substance harder, more resistant to corrosion, and as it is a metal, it will be conductive.
The 2 types of Alloys:
Substitutional Alloys Metal alloys in which atoms of a parent element are replaced by those of the components. Example - Bronze (Cu and Sn) Interstitial Alloys Metal alloys in which smaller atoms are inserted into the gaps in the lattice of a parent element. Examples - Steel (Fe and C)
In substitutional alloys, the atoms of the other components need to be of similar sizes, which makes it harder to produce.
By Ruhaan