Seung-Bok (Inha University, Inchon, South Korea) Choi & Young-Min (Ajou Motor College, Chungnam, South Korea) Han 
Piezoelectric Actuators [PDF ebook] 
Control Applications of Smart Materials

Currently, many smart materials exhibit one or multifunctional capabilities that are being effectively exploited in various engineering applications, but these are only a hint of what is possible. Newer classes of smart materials are beginning to display the capacity for self-repair, self-diagnosis, self-multiplication, and self-degradation. Ultima