Sunday, 13 March 2016

Interstitial Solid Solutions

          In interstitial solid solutions, the solute atom does not displace a solvent atom, but rather it enters one of the holes or interstices between the solvent atoms.
An example is Iron-carbon system which is shown in Fig.
          In this system the carbon (solute atom) atom occupies an interstitial position between iron (solvent atom) atoms. Normally, atoms which have atomic radii less than one angstrom are likely to form interstitial solid solutions. Examples are atoms of carbon (0.77 ), Nitrogen (0.71 ), Hydrogen (0.46 ), Oxygen (0.60 ) etc.,

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