
Interpretation:
The value of constants n and c for the given equation needs to be calculated.
Concept Introduction:
At constant temperature, the determinationof solid phase transformation is done by using the Avarmi equation. Generally, it is used to describe the rate of kinetic crystallization.
This equation is also known as the JMAK equation as it was founded by Johnson-Mehl-Avrami-Kolmology. This equation was first found in the year

Answer to Problem 12.4P
The value of
Explanation of Solution
Given:
Eqauation:
Temperature =
Assume -
Elapsed time −
Temperature constants -
The effect of temperature on crystallization is:
Fig.
To calculate the constants value of c and n by using the below formula,
Taking natural logarithm on both sides,
From the given equations of curves, the values are:
Table
From above table, plot the solpe of the graph:
Fig.
Equation of a straight line −
Then to find the value of n,
Then to find value of
The value of c and n are
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Chapter 12 Solutions
Essentials of Materials Science and Engineering, SI Edition
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