Entity

Time filter

Source Type

Baton Rouge, LA, United States

Grant
Agency: Department of Defense | Branch: Air Force | Program: SBIR | Phase: Phase I | Award Amount: 99.72K | Year: 2011

ABSTRACT: The objective of this project is to develop nondestructive evaluation technology to locate and characterize defects and damage in ceramic matrix composite material with sufficient quantification to be usable in material performance models. The Evisive microwave interferometry technique has been successfully applied to nondestructive examination and determination of density and porosity in S-200 ceramic matrix composite (CMC) material. This technology will be used to quantify characteristics of known defects, which will be destructively analyzed and used to validate models for prediction of material performance and live prediction. Evisive scan microwave interferometry requires no contact and no coupling media, and supports real time evaluation. The project will leverage these characteristics to provide practical testing strategies for manufacturing and in-service environments. The project is anticipated to extend methodology applicable to manufacturing of S-200 material to advanced materials. BENEFIT: CMC materials offer higher temperature capability, reduced weight, and improved durability compared to conventional materials. They are potential suitable for a variety of high temperature structural applications in turbine engines and elsewhere. In order to apply the material, it is necessary to develop models which are able to predict material performance and degradation associated with deviations in design properties; and to predict material longevity. Evisive Scan microwave interferometry has been demonstrated to be effective in nondestructive testing of S-200 and similar CMC material. Development of quantitative NDE measurements which are sufficiently precise and repeatable to support modeling of the material properties will enable prediction of useful life, and enable use of the material in many novel and highly effective applications. Replicating these NDE methods in the in-service environment will enable condition monitoring and effective application of the material. Effective quantification of manufacturing irregularities and in-service degradation will facilitate migration of the material into service applications, as well as supporting advancement of the CMC material itself. Efficient NDE process and manufacturing quality control will reduce manufacturing cost and further enable migration of the CMC materials into service applications. This proposal includes letters of support from ATK COIC Ceramics, Inc. (ATK) and Materials Research & Design, Inc. (MR & D) who are supporting the project. Copies of the ATK and Pratt & Whitney letters of support for further development and application of the Evisive microwave NDE under SBIR Topic AF07-105 are included, as these indicate intended incorporation into their manufacturing processes and potentially utilize the technique as a quality assurance tool in acceptance of manufactured CMC parts. As identified in the letters of support, it is anticipated that the technology will be beneficially expanded to support in-service condition monitoring, and operating cycle improvements.


Grant
Agency: Department of Defense | Branch: Army | Program: SBIR | Phase: Phase II | Award Amount: 711.13K | Year: 2009

This project will develop a field portable nondestructive technique for in-situ monitoring of the health of ceramic armor. The Evisive Scan microwave interference scanning method has been successfully demonstrated in Phase I of the project, where it was demonstrated successfully on Control Specimens and ceramic armor Surrogates designed and fabricated by ARL, and on samples of armor from Stryker and ASV programs. The patented scanning process utilizes microwaves as an interrogating beam to penetrate a dielectric material. The interference pattern of the reflected microwave signal is displayed as an Evisive Scan image and indicates the presence of a potential defect, internal structure of interest, or change in material dielectric properties. In Phase II, Evisive will mature the technique demonstrated in Phase I into a field portable system, fabricate two prototype systems and follow field use of the prototype systems at the depot level. The finalized NDE System design will be provided for commercial production and utilization by the US Army in Phase III of this project, where the program will be self funding. It is intended that the portable nondestructive health monitoring tool will be deployed with current forces and included as a tool for future weapons programs. In their letter of support, Associate Director for Survivability, Tank, Automotive Research Development and Engineering Center (TARDEC) has expressed interest in the resulting technology. Deployment of the condition monitoring system will reduce risk to warfighters and improve weapons system operating cycle cost.


Grant
Agency: Department of Defense | Branch: Army | Program: SBIR | Phase: Phase I | Award Amount: 118.00K | Year: 2009

The objective of this proposal is to develop a robust hand-held, data acquisition system for microwave inspection of non-metallic armor on ground vehicles. The system will em-ploy the patented Evisive Scan microwave interference testing method has been dem-onstrated in a portable, work station configuration on armor panels from the Stryker and ASV vehicles. The Evisive Scan method detects laminar features such as disbonding of the armor structure as well as cracks in ceramic tiles. The Evisive Scan method permits real time evaluation by inspection from one surface only, through non-contacting or con-tact encapsulation.


Grant
Agency: Department of Defense | Branch: Army | Program: SBIR | Phase: Phase II | Award Amount: 1.71M | Year: 2009

This project will develop a field portable nondestructive technique for in-situ monitoring of the health of ceramic armor. The Evisive Scan microwave interference scanning method has been successfully demonstrated in Phase I of the project, where it was demonstrated successfully on Control Specimens and ceramic armor Surrogates designed and fabricated by ARL, and on samples of armor from Stryker and ASV programs. The patented scanning process utilizes microwaves as an interrogating beam to penetrate a dielectric material. The interference pattern of the reflected microwave signal is displayed as an Evisive Scan image and indicates the presence of a potential defect, internal structure of interest, or change in material dielectric properties. In Phase II, Evisive will mature the technique demonstrated in Phase I into a field portable system, fabricate two prototype systems and follow field use of the prototype systems at the depot level. The finalized NDE System design will be provided for commercial production and utilization by the US Army in Phase III of this project, where the program will be self funding. It is intended that the portable nondestructive health monitoring tool will be deployed with current forces and included as a tool for future weapons programs. In their letter of support, Associate Director for Survivability, Tank, Automotive Research Development and Engineering Center (TARDEC) has expressed interest in the resulting technology. Deployment of the condition monitoring system will reduce risk to warfighters and improve weapons system operating cycle cost.


Grant
Agency: Department of Defense | Branch: Air Force | Program: SBIR | Phase: Phase II | Award Amount: 740.82K | Year: 2012

ABSTRACT: The objective of this project is to develop nondestructive evaluation technology to locate and characterize defects and damage in ceramic matrix composite material with sufficient quantification to be usable in material performance models. The Evisive microwave interferometry technique has been successfully applied to nondestructive examination and determination of density and porosity in S-200 ceramic matrix composite (CMC) material. In Phase I of this project, delaminations and macro-pores in an S-200 part were detected, sized and located in depth using the Evisive microwave technique and validated with micro-focus x-ray computed tomography. 20 simultaneous, discrete depth images, and 3D data file output were demonstrated. In Phase II this technology will be used to quantify characteristics of known defects, which will be destructively analyzed and used to validate models for prediction of material performance and live prediction. Inspection speed, data output and quantitative validation will be suitable for use in material property prediction for parts. Evisive scan microwave interferometry requires no contact and no coupling media, and supports real time evaluation. The project will leverage these characteristics to provide practical testing strategies for manufacturing and in-service environments. The project is anticipated to extend methodology applicable to manufacturing of S-200 material to advanced materials. BENEFIT: CMC materials offer higher temperature capability, reduced weight, and improved durability compared to conventional materials. They are potential suitable for a variety of high temperature structural applications in turbine engines and elsewhere. In order to apply the material, it is necessary to develop models which are able to predict material performance and degradation associated with deviations in design properties; and to predict material longevity. Evisive Scan microwave interferometry has been demonstrated to be effective in nondestructive testing of S-200 and similar CMC material. Development of quantitative NDE measurements which are sufficiently precise and repeatable to support modeling of the material properties will enable prediction of useful life, and enable use of the material in many novel and highly effective applications. Replicating these NDE methods in the in-service environment will enable condition monitoring and effective application of the material. Effective quantification of manufacturing irregularities and in-service degradation will facilitate migration of the material into service applications, as well as supporting advancement of the CMC material itself. Efficient NDE process and manufacturing quality control will reduce manufacturing cost and further enable migration of the CMC materials into service applications. This proposal includes letters from Alliant Techsystems Inc. (ATK), COI Ceramics, Inc. (COIC) and Pratt & Whitney, expressing support for further development and application of the Evisive microwave NDE technology for quantitative NDE of CMCs. Letters expressing support for performance of the project from COIC, Penn State Center for Innovative Sintered Products and Materials Research & Design, Inc. (MR & D) are also included. Copies of the ATK and Pratt & Whitney letters of under SBIR Topic AF07-105 are included, as these indicate intended incorporation into their manufacturing processes and potentially utilize the technique as a quality assurance tool in acceptance of manufactured CMC parts. As identified in the letters of support, it is anticipated that the technology will be beneficially expanded to support in-service condition monitoring, and operating cycle improvements.

Discover hidden collaborations