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Title: Electrically induced mechanical precompression of ferroelectric plates

Patent ·
OSTI ID:866457

A method of electrically inducing mechanical precompression of a ferroelectric plate covered with electrodes utilizes the change in strains of the plate as functions of applied electric field. A first field polarizes and laterally shrinks the entire plate. An outer portion of the electrodes are removed, and an opposite field partially depolarizes and expands the central portion of the plate against the shrunk outer portion.

Research Organization:
AT&T
DOE Contract Number:
AC04-76DP00789
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4714848
OSTI ID:
866457
Country of Publication:
United States
Language:
English