Re: It's an imperfect world

2012-11-10 Thread Evgenii Rudnyi
On 10.11.2012 12:17 Roger Clough said the following: I spent a career at NIST studying the resulting effects on strength. Do you know John Hastie and David Bonnell? I have been once an year with them at NIST. Evgenii -- You received this message because you are subscribed to the Google Gr

It's an imperfect world

2012-11-10 Thread Roger Clough
Hi Stephen P. King It's an imperfect world. Initial perfection results from assuming the initial crystal entropy to be zero. But in reality there is always an entropy from misfitting planes (dislocations) and there is a thermal equilibrium concentration of vacancies. And impurities