James C. M. (University of Rochester, New York, USA) Li 
Mechanical Properties of Nanocrystalline Materials [PDF ebook] 

This book concentrates on both understanding and development of nanocrystalline materials. The original relation that connects grain size and strength, known as the Hall-Petch relation, is studied in the nanometer grain size region. The breakdown of such a relation is a challenge. Why and how to overcome it? Is the dislocation mechanism still opera