Accession Number : ADA334865

Title :   The Production of Distorted 3-3 Hydrophone Composites from Reticulated Ceramics

Descriptive Note : Final rept.

Corporate Author : HI-TECH CERAMICS ALFRED NY

Personal Author(s) : Karst, Douglas ; Norris, Andy ; Sweeting, Truett

PDF Url : ADA334865

Report Date : 30 DEC 1997

Pagination or Media Count : 93

Abstract : Reticulated ceramics have been in production for over 20 years, primarily for molten metal filter applications. Annually, hundreds of thousands of square feet are produced with prices ranging down to twenty cents per cubic inch for some materials. This work was undertaken to apply reticulated ceramic processing techniques to piezoelectric ceramic-composite production and the subsequent production, testing, and evaluation of six hydrophone arrays. This first generation composite material is a rugged, distorted 3-3 piezoelectric ceramic composite with appreciable acoustical properties. Modeling results suggest that simple modifications will bring about enhanced sensitivities and acoustics. Sensitivity limits are imposed by the need to maintain strength at high pressures. Processing details are given in the Manufacturing Report, also delivered as part of this contract. Suggestions for an improved second generation material are presented. Composite costs are projected to be under $10/square inch in moderate volumes.

Descriptors :   *COMPOSITE MATERIALS, *CERAMIC MATERIALS, *HYDROPHONES, TEST AND EVALUATION, PRODUCTION, HIGH PRESSURE, SENSITIVITY, PIEZOELECTRIC MATERIALS, FILTERS, ACOUSTIC PROPERTIES, LIQUID METALS, RETICULAR FORMATION.

Subject Categories : Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE