Isothermal Avrami and Arrhenius methods

Procedures:

Integral methods.

Isothermal measuring regime.

One measurement at a given temperature T_a is sufficient, then:

ln[-ln(1-α_Ta(t)] = n lnA – nΔE^*/(RT_a) + n ln(t - τ) (the Avrami method)

If measurements at more temperatures T_a are given, then:

lnt_α=const(T_a) = lnA + (ΔE^*_α/(RT_a) (the Arrhenius method)

Procedures assume:

Johnson-Mehl-Avrami (nucleation and growth) kinetics.

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