Scanning of ultrasonic beams in ferroelectric ceramics by means of a nonuniform electric field Belyi, V. N. ; Kazak, N. S. ; Mashchenko, A. G. ; Pavlenko, V. K. ; Severin, F. M. Abstract Publication: Journal of Technical Physics Pub Date: January 1995 Bibcode: 1995JTePh..40...67B