After the experiment for certain time t=2sec, at a desired temperature, the specimen is sliced at different known distances along the x direction and is given as 2m. Calculate the specific intensity if the impurity diffusion coefficient is given as 2m2/sec?

After the experiment for certain time t=2sec, at a desired temperature, the specimen is sliced at different known distances along the x direction and is given as 2m. Calculate the specific intensity if the impurity diffusion coefficient is given as 2m2/sec? Correct Answer 0.568

After the experiment for certain time at a desired temperature, the specimen is sliced at different known distances along the x direction and the concentration of the radioisotopes is measured by measuring intensities of the emitted rays. Following the solution for thin film from Fick’s second law, we can write the relative intensity as I = (1/(√πDt))*exp (-x2/4Dt). D is the diffusion coefficient of impurity.

Related Questions

A steel specimen containing 0.2 wt.% C is carburized in an atmosphere that maintains a carbon content of 1.2 wt.% C at the surface of the specimen.
Given:
For carbon diffusion in austenite: D0 = 2.0 × 10-5 m2/s
Activation energy for diffusion, Q = 142 kj/mol