Accession Number : ADD000591

Title :   Strengthened and High Density BaTiO3.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Walker,Basil E , Jr ; Spann,J Richard ; Rice,Roy W

Report Date : 21 Jan 1975

Pagination or Media Count : 4

Abstract : Previous attempts to provide strong barium titanate piezoelectric ceramic bodies, such as, for example, transducer rings, has resulted in impairment of the ferroelectric and dielectric properties of the ceramic body. The present invention provides novel barium titanate-based ceramic bodies having improved densification and mechanical strength properties without impairment of ferroelectric and dielectric characteristics. The combination of at least about 0.1% halide salts of alkaline earth metals with at least about 0.5% MgO or La2O3 and the balance BaTiO3, comprise the ingredients for the high strength ceramic bodies.

Descriptors :   *Barium titanates, *Patents, Additives, Piezoelectric transducers, Halides, Alkaline earth compounds, Magnesium oxides, Lanthanum compounds, Oxides, Fluorides

Subject Categories : Electrical and Electronic Equipment
      Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE