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7027331 
Journal Article 
Effects of Electric Field on the Fracture Toughness (K-IC) of PZT ceramics 
Goljahi, Sam; Pisani, D; Gallagher, J; Lynch, CS; , 
2012 
AMER SOC MECHANICAL ENGINEERS 
NEW YORK 
341-345 
WOS:000322090400045 
Ceramic PZT with a controlled crack was subjected to combined four point bending and longitudinal electric field loading to determine the fracture toughness (K-IC) as a function of electric field. Application of a positive DC electric field (in the polarization direction) during mechanical loading was observed to reduce the critical stress intensity factor and application of a negative electric field increased the critical stress intensity factor. 
978-0-7918-5471-6 
4th Annual Meeting of the ASME/AIAA Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS) 
Scottsdale, AZ