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Micromechanical Models for Dielectric Behavior of Ceramic Matrix Composites

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-08-C-0053
Agency Tracking Number: N073-177-0363
Amount: $149,794.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N07-177
Solicitation Number: 2007.3
Solicitation Year: 2007
Award Year: 2007
Award Start Date (Proposal Award Date): 2007-12-11
Award End Date (Contract End Date): 2009-04-30
Small Business Information
110-1 Clematis Avenue
Waltham, MA 02453
United States
DUNS: 018791827
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Andrew Washabaugh
 Principal Investigator
 (781) 642-9666
Business Contact
 Joni Hatem
Title: Sr. Vice President
Phone: (781) 642-9666
Research Institution

The proposed program will enhance material and sensor models to provide improved understanding of dielectric property information regarding Ceramic Matrix Composite (CMC) material condition. These models are to be used to assess thermochemical degradation of CMC’s and also to assess the condition of materials during manufacture. JENTEK has developed a family of electroquasistatic and magnetoquasistatic sensors and arrays that have successfully solved a wide range of previously intractable NDE problems. These sensors and sensor arrays use model-based inverse methods to estimate electromagnetic properties that are correlated with many conditions of interest, such as thermal degradation of component materials. JENTEK’s Interdigitated Electrode Dielectrometer is being adapted for manufacturing quality control of CMC’s. The goals of this Phase I program are to extend standard micromechanical models to predict dielectric behavior of coated fiber CMC’s, to incorporate these models into anisotropic layered material representations for dielectric sensor models, and to relate composite constituent behavior with thermal exposure conditions. To address this need, we will work with CMC thermostructural modelers (MR&D), manufacturers (COI Ceramics), and an end user (Pratt & Whitney). In Phase II, we will refine the models to support in-service material evaluation and self-consistent prediction of dielectric, thermochemical, and structural behavior.

* Information listed above is at the time of submission. *

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