What is the effect of temperature on the concentration of vacancy?

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Riya RoyIron

Asked: 2020-07-08T19:34:31+05:30
2020-07-08T19:34:31+05:30In: Physical Metallurgy & Heat treatment

What is the effect of temperature on the concentration of vacancy?

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The fraction of vacant lattice sites in a crystal is given by nv/n= exp(-qv/kT) Where, k= Boltzmann constant qv= Energy needed to create a vacancy T= temperature in Kelvin As T increases nv/n too increases.

The fraction of vacant lattice sites in a crystal is given by

n

_{v}/n= exp(-qv/kT)Where, k= Boltzmann constant

q

_{v}= Energy needed to create a vacancyT= temperature in Kelvin

As T increases n

_{v}/n too increases.The number of vacancies increases with increase of temperature that is explained with equation with above answer.

The number of vacancies increases with increase of temperature that is explained with equation with above answer.

See lessThe fraction of vacancies in a crystal is given by n/N= exp(-Q/RT) Where, R= Gas constant Q= Energy required to create a vacancy T= temperature in Kelvin From the formula we can say that vacany concentration exponentially increases with increasing in temperature.

The fraction of vacancies in a crystal is given by

n/N= exp(-Q/RT)

Where, R= Gas constant

Q= Energy required to create a vacancy

T= temperature in Kelvin

From the formula we can say that vacany concentration exponentially increases with increasing in temperature.

See less