Accession Number : ADD016579

Title :   Compositive Piezoelectrics Utilizing A Negative Poisson Ratio Polymer.

Descriptive Note : Patent, Filed 4 Dec 92, patented 2 Aug 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Smith, Wallace A

Report Date : 02 Aug 1994

Pagination or Media Count : 12

Abstract : A piezoelectric composite which can be used as a transducer is constructed of parallel piezoelectric ceramic rods set in a passive polymer matrix which has a negative Poisson ratio whereby the electromechanical coupling of the transducer is greatly increased.

Descriptors :   *POISSON RATIO, *POLYMERS, *PATENTS, COUPLINGS, RATIOS, RODS, TRANSDUCERS, PIEZOELECTRIC MATERIALS, COMPOSITE MATERIALS, CERAMIC MATERIALS, ELECTROMECHANICAL DEVICES

Subject Categories : Mechanics
      Electricity and Magnetism
      Ceramics, Refractories and Glass
      Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE