×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Linearising the Avrami Equation

Linearising the Avrami Equation

Linearising the Avrami Equation

(OP)
I am trying to find the middle step in linearising the Avrami equation so that it can be plotted as a straight line and the parameters n and k determined.

I know that 1-X = exp(-kt^n)

where X is degree of crystallinity, k is the rate constant and n is the Avrami exponent.

I also know that you can plot ln(-ln(1-X)) against ln(t) to get a straight line in which the gradient is n and the y intercept is ln(k), but I don't understand how to get from the original equation to one of the form:

ln(-ln(1-X))=n.ln(t)-ln(k).

Any help would be greatly appreciated. I need to understand the middle step in order to apply the rules to another equation, but have found textbooks fairly useless.

Thank you,

Lin

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources