The interest in materials property determination by nondestructive means is increasing especially for in-process and in-service inspection of structural and electronic materials and components. Such attention is due to several factors, including increased automation of manufacturing processes, the demand for greater reliability in consumer products and military hardware, and more severe demands on the performance of materials. This book represents the proceedings for the Symposium on Nondestructive Hethods for Haterial Property Determination held April 6 to 8, 1983, at the Hotel Hershey in Hershey, Pennsylvania. That symposium was one of the first meetings concerned specifically with nondestructive material property determination (characteriza­ tion). Its purpose was to stimulate intercourse between researchers, engineers, and theoreticians so as to focus upon the multidiseiplinary problems of advancing the state of the art in this area. The papers in the book are concerned mainly with acoustic (including ultrasonic), magnetic, electrical, and x-ray diffraction techniques and applications. Hany of the papers describe well­ developed technologies that are currently in practical application, while others discuss concepts which will never emerge from the laboratory but perhaps will provide the groundwork for more practical ideas.