TY - JOUR AU - F Lofaj AU - Gerald Blessing AU - Sheldon Wiederhorn C2 - Journal of the American Ceramic Society DA - 2003-05-01 00:05:00 LA - en M1 - 86 (5) PB - Journal of the American Ceramic Society PY - 2003 TI - Ultrasonic Velocity Technique for Non-Destructive Quantification of Elastic Moduli Degradation during Creep in Silicon Nitride ER -